Some standard content:
National Standard of the People's Republic of China
Safety code for passengers aertal ropeways
Safety code for passengers aertal ropeways1 Subject content and scope of application
1235290
This standard specifies the most basic safety requirements for the design, manufacture, inspection, use and management of passenger aerial ropeways. This standard applies to reciprocating passenger ropeways and circulating passenger ropeways. This standard does not apply to towing ropeways used in ski resorts, underground mines and professional ropeways. 2 Reference standards
GB146.2-83 Standard gauge railway construction limits GB 188-63762 mm gauge railway locomotive vehicle clearance and building approach clearance classification and basic dimensions GB352-88 sealed steel wire rope
GB8918-88
quality steel wire rope
GB1200-75
galvanized steel strand
GB9075-88
inspection and scrapping specifications for steel wire ropes for aerial ropeways GB5768-86 road traffic signs and markings GB6183 Industrial and civil design specifications for overhead power lines of 35 kV and below TJ9→74 Industrial and civil structural load specifications JTI02185 General specifications for the design of public bridges and culverts
8 General provisions
8.1 Lines
3.1.1 Line selection
When selecting a cableway line, the local climate, geographical conditions, the main traffic routes that the cableway will pass through, and other buildings and facilities that it will cross should be considered. The projection of the center line of the cableway line on the horizontal plane should be a straight line; when the element spacing needs to be changed, it shall be determined according to the specifications in 3.1.5.
3.1.2 The maximum frequency angle of the steel wire rope of the circulating passenger ropeway shall not exceed 100%. 8.1.3 The clearance between the bus and obstacles when the bus swings horizontally shall meet the following requirements: When the bus passes through a bracket without a guide device, it is allowed to swing 35% (when the bracket and the car are hinged, 35% refers only to the car part); when passing through a bracket with a guide device, it is allowed to swing 20% through the bracket, but the passengers cannot reach the structure with their hands. b. When a retractable bus (including a hanging chair) passes through a structure without a guide device and swings 20%, the distance between the bus and the structure shall not be less than 0.5m*
c. When the bus is running relative to the span, the distance between the bus and the structure when swinging 35% shall not be less than 0.5m; d. When the passenger cars are running between spans, one of them swings inwards by 35%, and the carrying rope on the other side also swings inwards at the maximum working wind force when it sags by 10%. The distance between the passenger car and the carrying rope on the horizontal projection plane shall not be less than 0.5m. e. When two passenger cars are running between spans, the distance between them and various obstacles on the line when they swing by 35% shall not be less than 0.5m:
When two passenger cars on a reciprocating ropeway are running relative to each other between spans and both cars swing inwards The distance between the carriages shall not be less than f.
Approved by the State Administration of Technical Supervision on June 13, 1990 and implemented on February 1, 1991
CB123.52-90
When a reciprocating passenger car passes through the bracket, the distance between the carriages and the brackets shall not be less than 0.5m under the following conditions: When the passenger car has brakes and crew, it is allowed to swing 10%; When the passenger car has brakes but no crew, it is allowed to swing 15%; When the passenger car has no brakes, it is allowed to swing 20%.
a.1.4 Cable length
When determining the cable length, the provisions of 3.1.3 d, e, and f shall be met. For reciprocating cableways, this restriction does not apply at the station entrance. 3.1.5 Changes in cable length and changes in line direction In general, the cable length on a cableway should remain unchanged. If there are special requirements on the line, the cable length can also be changed. However, the projection of the deflection angle of the wire rope on the horizontal plane on each line support should not exceed 0.5%. When safety measures are used to ensure that the vehicle passes the support safely, it can be increased to 0.9%.
8.1.6 Distance during longitudinal swing
The longitudinal swing of the passenger car should not exceed 35%, and the passengers should not reach out and touch other obstacles (see Article 7.3.3). 3.1.7 Maximum distance from the ground
In the most unfavorable situation, the maximum vertical distance from the ground depends first on the type of passenger car and the possibility of training and rescue at that place, but it must not exceed the following passenger limit values:
For open passenger cars and passenger cars without crew: chairlift: When training and rescue with a ladder, it is Ⅲ above the ground, and when rescue equipment is used (people can reach the chairlift from the ground), it is within 15 above the ground. For scattered passenger cars; the distance from the ground is the same as that of the chairlift. When the rescue personnel can reach the bus from the nearby rack or from the temporary support for rescue, the distance from the ground to the bus is allowed to be 25 meters:
b. Closed passenger car:
The height of the closed passenger car (such as the cabin) from the ground shall not exceed 25 meters. When the accident winch can be used to lower the passengers to the ground in a short distance, the circular ropeway is allowed to be 45 meters from the ground. When the line is in the air and rescue is impossible, the distance from the ground to the reciprocating ropeway should not exceed 100 meters! If rescue is possible, it is not subject to this restriction.
3.1.B Minimum distance to the ground
The distance between the lowest point of the fully loaded bus or wire rope and the ground shall not be less than the following values: a: 2 meters in unmanned areas or prohibited isolation zones (not less than 1 meter for chairlifts)! In areas where pedestrians are allowed to pass under the line, there is no need to wait for the small gate 3m1b.
In areas intersecting with roads, see Article 3.7.1. The minimum distance from the ground also includes the thickness of snow. In the vicinity of the station building, there is a need for construction c.
, and this limit is not required.
When determining the absolute value of the minimum distance from the ground, in addition to the static position, the additional value for dynamic time should also be added, that is, the maximum value should be selected from the following numbers, 1% of the distance between the adjacent supports, 5% of the static sag of the load-bearing cable, 10% of the sag of the transport cable, and 15% of the sag of the traction cable and the balance cable. When crossing various public facilities, see Article 3.7.1. 8.2 Operating speed
The speed of vehicles and chairlifts on the line should not exceed the following values. 3.2.1 Maximum operating speed on the line
8, double-line reciprocating ropeway with crew in the car, when between spans, 10m/sb, when passing through supports and on hard surfaces, 7m/sc: double-line reciprocating ropeway without crew in the car is 6m/s between spans, and its speed should be reduced to 4 tn/st
Single-line reciprocating ropeway is 6m/s when across spans, and the speed should be reduced when passing through supports and when there are no crew in the car.d.
GB 12352- 90
When there is no crew in the double-line intermittent circulation ropeway, 5.0m/s; when there is a crew in the double-line intermittent circulation ropeway, 7.0m/sl double-line continuous circulation ropeway with movable gripper, 3.6m/sf.
single-line continuous micro-loop ropeway with movable gripper, 5.0m/5; passenger
single-line intermittent circulation ropeway with fixed gripper, 4.0m/sh.
single-line continuous circulation ropeway with fixed gripper, 2.0m/sJ. Single-line continuous circulation ropeway with fixed gripper for transporting passengers wearing skis, 2.5m/s. A faster speed may be adopted after effective measures are taken and approval is obtained from the safety supervision department. 3.2.2 The ropeway shall be equipped with a maintenance speed of 0.3~0.5m/s. 8.2.3 Minimum spacing between passenger cars
For fixed chairlifts, the minimum spacing between chairlifts is usually expressed in multiples of the running speed or in seconds. For a chairlift for one person, the minimum spacing is 3 times the running speed, not less than 5 seconds. For a chairlift for two persons, when two persons can get on and off at the same time, the minimum spacing is 4 times the running speed, not less than 8 seconds. For a chairlift for two persons, when two persons do not get on and off at the same time, the minimum spacing is 6 times the running speed, not less than 105 seconds. For a cableway specially used to transport passengers wearing skids and when the platform is long enough, the minimum spacing for a single open chairlift may be reduced to not less than 45 seconds. For an open chairlift for two persons, when two persons can get on and off at the same time, the minimum spacing is not less than 7 seconds. For a movable chairlift with enclosed carriages, the minimum spacing is not less than 1.5 times the normal braking distance. 3.8 Effective area of the car and the number of passengers allowed 3.3.1 Effective area of the car
, standing area for less than 6 people, 0.3㎡2 per person, 6 people and more than 6 people, the required standing area is not less than 0.16×number of people + t.6m2
b. When there is a seat, the width of each seat is at least 0.5m, e. When the car rollover capacity does not exceed 15 people, the weight of each person is calculated as 690Ni+, and when it exceeds 15 people, it is calculated as 640N per person. For single-line chairlifts, the weight of each person should be calculated as no less than 1-690N. When wearing a sled, add 100N. 3.3.2 Permitted number of people
3.3.2.1 For circular ropeway
, with single fixed rope grip, the maximum number of people is 3, and with single movable rope grip, the maximum number of people is 4. After sufficient technical demonstration, it is allowed to exceed the limit after approval by the safety supervision department. 3.3.2.2 For double ropeway
and: when there is no crew in the car, the maximum number of people is 15b, when there is a crew in the car, there is no limit.
3.4 Safety of wire rope on the support saddle and the supporting rope pulley 3.4.1 Minimum support load of double rope rope
The minimum load of wire rope on the support saddle is not allowed to be negative (floating) when the following unfavorable conditions occur at the same time: a. When the maximum tension of the wire rope increases by 40% b. When the wind intensity is 500Pa, it acts on the chord length in a larger span (see 3.5.3 for the span length). The combined force of the minimum support load and the horizontal wind force when the operation is stopped should act within the rope groove. 3.4.2 Minimum support load and minimum wheel pressure of single-cable track during positive belt operation. The minimum support load shall be equal to the weight of the wire rope in the adjacent span (the length of the wire rope in the span is calculated by the chord length), and its absolute pressure shall not be less than 200N.
b. The pressure of the load-bearing traction element on each cable wheel shall not be less than 500N; c. In the support cable wheel knob of the concave section, when the load-bearing traction element tension increases by 40%, no negative pressure shall appear on the cable wheel! d. The cable wheel must be able to ensure that the wire rope cannot leave the pressure wheel when the passenger car passes the support with double payload. 3.4.3 Maximum wheel pressure and folding angle of the cable wheel with elastic over-cushion 47
GB 12362-90
, the maximum load of the carrying rope on each cable wheel shall comply with formula (1), PKd.D
Formula: P——maximum load of the carrying rope on the cable wheel, N,
D——diameter of the carrying element, mm! wwW.bzxz.Net
D——diameter of the cable wheel, mn,
K——coefficient, according to the shape of the cushion material on the cable wheel, 1 when the average load, temperature and speed are not too high, it is 0.2~0.5MPa, when the cushion material is wear-resistant and pressure-resistant, take the larger value, otherwise take the smaller value. b, the maximum folding angle on each cable wheel of the single-line track shall not exceed 8%, double-line track: the maximum folding angle of the traction rope is shown in d in 4.2.3. .
3.5 Wind load (load and shape factor) and snow load 3.5.1 When calculating, the following wind load is simply multiplied by the shape factor: When in operation:
200 Pa
When not in operation:
3.5.2 Shape factor
1 200 Pa
Sealed steel wire rope 1.1~1.2; multi-strand wire rope 1.3. The shape factor of passenger cars and line buildings can be given according to the corresponding structure. 3.5.3 When calculating wind force for spans above 400m, it is allowed to use the converted length, see formula (2): LH = 240 + 0. 4 I
Formula: H converted length,
-actual chord length, m.
3.5.4 Snow load
The snow load shall comply with the requirements of TJ9. Ice loads should be considered in areas prone to icing. 3.6 Rescue
In order to rescue passengers from the cableway 1 in the shortest time (generally no more than 3 hours) and return them to any station. Passengers do not need to participate in this work during the rescue process. When operating at night, lighting facilities must be considered. 3.7 Overpass and avoidance of lines
When crossing or running parallel to railways, roads, cableways, power lines, navigation and flow measurement, etc., they should not interfere with each other and ensure safety during normal operation and maintenance. Nor should they affect normal rescue work. 3.1.1 When the cableway crosses the following areas, the relevant regulations of the department must be observed, and the minimum vertical distance between the lowest point of the cableway or protective facilities and the top of the ground rail must meet the following requirements. a. When crossing national railway lines, the regulations of GL146.2 shall be met. When crossing local railway trunk lines, the regulations of GR188 shall be met. b. When crossing electrical pipelines and other cableway lines, the regulations of GBJ61 shall be met. When crossing power lines, the cableway line should pass under the power lines as much as possible. If it is necessary to pass over the top, safety protection facilities must be installed under the cableway. When crossing highways, the regulations of GBJ021 shall be met. For first- and second-class highways, the distance shall not be less than 15.0m; for third- and fourth-class highways, the distance shall not be less than d. When crossing over navigable rivers, the vertical distance from the top of the ship's gun at the maximum flood level (including water and waves) shall not be less than 1.0m. When crossing residential or cultivated land, the vertical safety distance from the ground shall not be less than 5.0m. When crossing buildings, the vertical distance from the top of the building shall not be less than 2.0m. When crossing fruit trees and economic crop forests, the distance from the highest point of the forest should not be less than 1.5, and the growth rate of the forest cattle during the pruning cycle should also be considered.
3.8 The line and station site should avoid being built in the following areas. 48
GB 12852—80
3.8.1 The aerial ropeway line should avoid being built in mountain winds and in sections that are orthogonal to the dominant wind direction. 3.8.2 The aerial ropeway should avoid being built in areas where there are snow fronts, landslides, collapses, caves, storms, floods, fires, etc. that endanger the safety of the ropeway. Exceptions are made when taking preventive measures with the approval of the competent authorities. 3.8.8 For all ropeways built near military facilities, corresponding measures should be taken in accordance with the requirements of the military base management unit. 3.9 Night operation
When the ropeway needs to operate at night, sufficient lighting equipment should be installed in the station and on the passenger car. 3.10 Equipment Manufacturing
3.10.1 Every part of the ropeway should be carefully designed and manufactured, and the metal materials used should be carefully selected. 3.10.2 The selection and testing of non-metallic materials should comply with the corresponding national standards. It is strictly forbidden to use special grade materials to manufacture ropeway equipment. New materials that do not have a grade for the time being should be selected after obtaining a certificate officially approved by the provincial-level management authority. 3.10.8 The hot and cold processing technology during equipment manufacturing should be strictly implemented in accordance with national standards. 3.10.4 The wire rope must meet the requirements of GB8918, GB352~354, and YB829. 3.10.6 The ropeway equipment should be strictly inspected according to relevant standards when leaving the factory, and a certificate of conformity should be issued. Equipment that does not meet the design requirements is strictly prohibited from leaving the factory.
3.11 After the completion of the ropeway project, it must be inspected and accepted by the superior safety authority before it can be officially put into operation. Hand Wire Rope
4.1 Principles of Steel Wire Selection
4.1.1 The load-bearing rope must be a whole steel wire rope. It is not allowed to use open spiral steel wire ropes or steel wire ropes with any type of fiber core as load-bearing ropes. 4.1.2 The traction rope, balance rope, and carrier rope should use strand-type steel wire ropes with line contact, surface contact, and unidirectional twisted fiber core. In a corrosive environment, it is recommended to use bonded zinc steel wire ropes. 4.1.3 The tension rope should use a steel wire rope with good burning resistance and special bending resistance. It is not advisable to use multi-layer steel wire ropes. Except when used on a large-diameter tension wheel (or roller chain) as specified in Article 4.2.3. 4.2 Determination of wire rope parameters
4.2.1 Tensile safety factor
The tensile safety factor of the new wire rope, i.e. the ratio of the actual breaking tension of the wire rope to the maximum working tension of the wire rope, shall not be less than the value listed in Table 1.
Carrying case
Wire rope tensile case total factor
Train with passenger car brake wire rope (traction element, balance element, brake element) Line without passenger car brake wire group (traction case rope, balance rope, brake element) Carrying element
Tension rope
Note: When double traction is adopted, the safety factor of each pull rope shall be increased by 20%. .2.2 Relationship between transverse load and wheel pressure
Safety factor
When the wire rope is tensioned, the ratio of the maximum load or wheel pressure at each bearing point to the minimum tension at that point should not be greater than the following values: a: The ratio of wheel pressure to minimum tension of the load-bearing rope
The ratio of transverse load to minimum tension of the wire rope is not greater than 1/12, and the ratio of the maximum wheel pressure of a single wheel to the metal cross-sectional area of the load-bearing rope shall not be greater than 5MPat49
GB 12352—90
If there are multiple passenger cars in a span, the change in the tangent inclination between the load curves of the empty rope and the fully loaded car at the end of the span shall not be greater than 15%.
If passenger cars are operated in groups (i.e., when passenger cars are grouped to leave the station), the group of passenger cars can be regarded as a single load. b. When using a fixed gripper, the ratio of the gripper jaw load to the minimum tension of the wire rope shall not exceed 1/20, and the ratio of the gripper jaw load (in N) to the metal cross-sectional area of the carrier rope (in mm) shall not exceed 8MPa. When using a movable gripper, the product of the ratio of the gripper jaw load to the minimum tension of the wire rope and the ratio of the gripper jaw load to the metal cross-sectional area of the carrier rope (in mm) shall not exceed 1.5MPa. If two grippers are installed on each car, and the distance between the two jaws is less than 15 times the wire rope diameter, it can be considered as one gripper, otherwise it can be considered as two separate grippers, and the load borne by each gripper can be calculated as 0.6 times the total load. If two fixed grippers are used, and the distance between them is large (for example, more than 20 times the wire rope diameter), they can be considered as two separate grippers, and the load borne by each gripper should not exceed 1/24 times the minimum tension of the wire rope. In the case of multiple passenger cars in a span, the change in the tangent inclination between the load curves of the empty rope and the fully loaded passenger car at the end of the span cannot be greater than 15%.
4.2.3 Guide wheels, drums, and carriers
8. For guide wheels, drums, and saddles with elastic materials as cushions (without slippage or repeated bending of the load-bearing rope), the ratio of their minimum diameter to the true diameter of the wire rope shall not be less than the values shown in Table 2 above: b. The curvature diameter of the load-bearing guide rope saddle (including the guide rope saddle with slippage or repeated bending of the load-bearing rope) shall not be less than 300d (d is the diameter of the wire rope, m). The speed v (m/s) of the passenger car passing through the bracket is related to the curvature radius R (m ) should be maintained between R
c2.0m/s2,
CIf the traction rope and the carrying rope pass through the unlined rope wheel or the rope gripper, there is a large impact force when the wheel moves between the wheels, the minimum diameter of the pulley shall not be less than 12d,
characteristic traction element angle is between 8% and 20%, and the selected cable wheel diameter (in mD) shall not be less than the load value (in N) applied by the small wire rope on the steering wheel, and the above requirements should be met that the diameter of the cable wheel guide wheel is 12 to 80d respectively. Select according to the most unfavorable conditions. Table 2 Relationship between steering wheel, drum, saddle and wire rope Application Loading rope, flat rope and transport rope Type of wire rope Sealed rope Multi-strand type Sealed and multi-strand hinged type Shadow-strand type Occasion of use Static load-bearing element Steering saddle curvature radius Roller chain curvature radius Guide wheel ||The following are standard simple wheels, reciprocating wheels, circulating wheels, etc. The wire rope is lighter than the following: ||80~100+2
When used at rest (such as end rollers), it is suitable for rotating wheels and rotating wheels. When rotating and turning, the winding wheel has the following characteristics: ||The safety coefficient is relatively large (2.1), which can be a smaller value. 50
Multiples of the true diameter of the outermost steel wire
800-1000
GE 12862—90
2) Outer wire height, when the outer wire height is 3.5mm, it should be 1000, 1200 and 1800 respectively. 3) If the milk wire rope needs to be strung for a short time (once every three years), this value can be reduced. 4) It depends on the stress of the transition from the gripper on the wire rope to the steering wheel (see 7.5.6). For the wrap angle of the traction element on the driving wheel is 4, 80d is selected, and for the wrap angle or the carrier bag certificate when using a fixed type of gripper, 100d is selected. 4.3 Connection and end fixation of wire rope
4.$.1 Joints of wire rope
All splicing work shall be undertaken by experienced personnel. The splicing length of wire rope shall not be less than 1200d, and the distance between adjacent splices shall not be less than 3000d. For ropeways with half traction rope and half balance rope, splicing of traction rope and balance rope is not allowed. For a carrier rope, traction rope and auxiliary rope with an infinite winding, the splicing joints shall not exceed two. The buried length of the surface contact wire rope shall not be less than 70d.
4.8.2 The fixing of the end of the wire rope must be careful and cautious. When using a metal conical sleeve for fixing, the wire rope shall not be subjected to bending load at the exit of the sleeve.
4.4 The inspection and scrapping of wire rope shall comply with the relevant provisions of GB9075, Part 1. 5 Station building
5.1 Facilities of the station building.
5.1.1 The station building should consider the setting of waiting room and toilet according to local conditions. 5.1.2 Mechanical equipment, electrical equipment and wire ropes in the station shall not endanger the safety of passengers and workers. The distances mentioned in a, b and d in 3.1.3 shall be in accordance with the requirements for smooth evacuation of passengers. It can be appropriately expanded. 5.1.3 The station building should have targeted lighting and backup lighting equipment. 5.1.4 The control case of the drive device should be set up in a wide field of vision to take into account the operation of the platform entrance and exit, and the control console can easily monitor and control the operation of the entire line or part of the line. Noise reduction measures should be taken in the same machine room, and the noise should not exceed 80dB. 5.1.5 All non-public transportation spaces should be separated, and non-workers are not allowed to enter. 5.1.6 Lightning protection facilities should be set up according to local conditions, and fire prevention should be paid attention to in the station building. 5.1.7 Rain protection facilities can be set up in the storage area of the passenger car in the station. The driver's cab and control room with working temperature below 5℃ shall be equipped with heating equipment. 5.1.8
5.2 Driving and braking
5.2.1 In order to ensure safe operation, the main drive machine shall be equipped with two independent power supplies. When the power supply line of the main drive machine fails, the second power supply shall be able to be put into operation in time, and the internal combustion engine can also be used as a backup energy source. 5.2.2 Regardless of how the load condition of the main drive machine changes, the change in its speed shall not exceed +5% of the normal operating speed. 5.2.3 When the main drive machine is running, it shall be able to stop automatically in any of the following situations: a: No voltage or voltage drops below a specific minimum value b. When power consumption rises above a specific maximum value: e. The maximum operating speed exceeds the rated value by 10%
d. For other safety protection facilities, see 8.2.
5.2.4 The traction rope or carrying rope shall have sufficient adhesion to the driving wheel groove, and the anti-slip safety coefficient of the driving wheel shall be greater than 1.25 when running under the most unfavorable load condition.
5.2.5 In addition to considering static and dynamic stress, the fatigue strength of the material must also be considered for the characteristics of the drive machine. 5.2.6 Each drive machine should be equipped with two sets of brakes, the working brake and the emergency brake. Both sets of brakes can be automatically operated and adjusted, and are independent of each other.
One of the brakes must act directly on the driving wheel as an emergency brake. a.
The emergency brake can also be manually operated:
Each brake must be able to ensure that the equipment stops within a given braking stroke (not allowed to exceed 2/3 of the distance between the passenger cars); c.
s, and the braking force of the dynamic action must be generated by gravity or spring pressure 31
GB12852-90
The braking deceleration should be controlled at 0.5~～2 m/s3, e: The braking force of the working brake should be able to gradually decelerate according to the line load. In the event of an accidental power outage, the working brake should be able to be put into operation immediately. The breaking safety factor of the brake components shall not be less than 5.6.2.7 Automatically controlled ropeways must be equipped with manual control mechanisms. 5.3 Tensioning equipment and anchoring
5.3.1 The tensioning of traction ropes and carrying ropes must be done with tensioning weights or hydraulic tensioning devices. The tensioning of the load-bearing ropes shall be done with tensioning weights. After verification, anchoring at both ends may also be used, but the tensioning force must be measurable and adjustable. 5.3.2 The tensioning weights or tensioning trolleys shall be operated smoothly, and their positions shall be indicated by indicators. End switches shall be installed at the travel ends of the tensioning weights or tensioning trolleys.
5.3,3 The supporting structure of the tensioning weights, the accessories of the steel ropes and the end connections shall be easy to inspect, repair and replace. 5. The connection between the tensioning weights and the paving points shall be prevented from rusting. 5..6 When the load-bearing ropes are wound around the paving drums and then fixed, they shall be easy to move. The part of the rope that protrudes after winding should be clamped with bolts and fixed to the bracket.
Table 4 Other safety regulations
5.4.1 The parking place of the reciprocating ropeway station should be equipped with a buffer device limit switch (see 8.2.2). 6.4.2 The passenger car (or chairlift) of the circulating ropeway should not endanger the safety of passengers when passing through the station. 5..3 There should be enough space and common spare tools in the station to inspect and repair the equipment at any time. 5.4.4 The boarding and alighting platform on the fixed-grip ropeway must be of sufficient length, and the longitudinal and transverse slopes of the platform ground should not exceed 8%.
5.4.5 The boarding and alighting platform length of the fixed-grip ropeway chairlift is related to the running speed: the platform length of a chairlift with one seat shall not be less than 4 times the running speed (in meters). The platform length of two seats and when getting on and off at the same time shall not be less than 5 times the running speed (in meters). Two seats and,When getting on and off the train at different times, the speed should not be less than ? times the running speed (in meters). The platform for getting on and off the train should also have sufficient width and walkways for passengers to use. For passengers wearing skids on ski resorts, the platform length can be appropriately reduced. 5.4. The driving wheel and the slewing wheel of the circulating ropeway should be equipped with a device to prevent the wire rope from sliding out of the wheel groove. 5.4.7 There should be a pedestrian walkway along the differential ropeway line for easy walking. 5.4. In extremely cold areas, there should be a device to remove ice from the wire rope, driving wheel and ice shield. 6 Exposed structures
6.1 Load
When performing strength screening of the support and foundation, the following loads should be considered: a) the total pressure of the support and the wire rope acting on the support (including the total weight of the passenger car, the wire rope, and the dead weight of the communication signal line), b) the wind load and pulse snow load acting on the wire rope and line equipment, c) Accident loads, such as broken ropes, trucks, etc., and seismic loads must also be considered in earthquake zones of magnitude 7 or above. 6.2 Full coefficients
6.2.1 The safety factors of slip, overturning and torsion of all supports (whether in working or non-working conditions) shall not be less than 1.5.
6.2.2 When performing foundation calculations, the lateral pressure of the earth fill is not considered. In the case of rock foundations, the stability factor is allowed. 6.2.3 Under various working conditions, especially when subjected to lateral wind force, the elastic deformation of the support should not affect the safety of the guide device and the stability of the steel wire, nor cause significant wear of the steel wire rope at the saddle. The torsion angle of the top of the support in the horizontal plane shall not exceed 30°. 6.2.4 When calculating the components of the support structure, the alternating stress of the fatigue strength should be considered. The safety factor of the metal material of the support refers to the ratio of the unit breaking load of the material to the unit working load of the material under the most unfavorable conditions. When bearing working load, the safety factor should be not less than 3, and when bearing non-1 working load, it should be not less than 2.2. When determining the size of the metal structure, the fatigue strength should be considered.
6.3 Support structure
GB 12862-90
6..1 The support should be made of steel or reinforced concrete (including prestressed concrete). Rope-tensioned supports are not allowed. 6.3.2 The wall thickness of the open steel used in the support metal structure should not be less than 5mm, and the wall thickness of the steel pipe and closed steel should not be less than 12.5mm. The inner and outer surfaces of the pipe and closed profile should have an anti-rust layer. 3. In addition to the pole foundation, the support foundation should use a short column reinforced concrete foundation as much as possible and should be higher than the ground surface. The foundation ground should be below the normal spherical freezing depth.
6.4 The support base should be surrounded by drainage and slope protection facilities. 6.4 Support equipment
6.4.1 The saddle for the load-bearing rope on the support should be a fixed saddle. Only when it is not convenient to use a fixed saddle can a movable saddle be used.
6.4.2 The design of the saddle, especially the tip of the saddle, should ensure the safe placement of the load-bearing rope, and should not affect the free passage of the passenger car in the most unfavorable working conditions (load-bearing rope deflection, load increase, load-bearing rope brake down). .4.3 The saddle of the load-bearing case should be lined and lubricated sufficiently to protect the wire rope. 6.4. A rope guide mechanism should be equipped to ensure that the traction rope or balance rope remains on the rope wheel, so that the traction rope or balance rope on the rope wheel can rise and fall normally when the passenger car passes through the support. A ladder should be installed on the support. When the height is above 10m, a guard ring should be installed on the ladder. When it exceeds 25m, a rest platform with railings should be installed every 10m.
84.5 The guide frame for the hanger and the vehicle should be able to allow the passenger car to pass through the bracket without impact when the passenger car deflects longitudinally or laterally.
6.4.6 The support wheel group on the single-line track should be installed symmetrically with the center line of the wire rope so that each support wheel is evenly stressed. 6.4. On the support wheel of the bracket, a catcher should be installed on the outside of the support wheel and a rope baffle should be installed on the inside. The principle is that it should not prevent the catcher from passing through the support wheel smoothly.
6.4.8 Facilities for lifting the wire rope should be set on the bracket. Ladders and maintenance platforms should be installed on the bracket. 6.4.9 The brackets should be numbered in sequence.
Carrying vehicle
7.1 Load
The following loads should be considered when calculating the carrying equipment: a. Basic load: deadweight, effective load and pressure of the traction rope on the bus, b. Additional load: wind load; braking inertia of the drive engine and the brakes on the bus, resistance of the anti-sway device, buffer and guide device: the resistance of the bus when it swings horizontally and longitudinally through the saddle: c. When calculating, special consideration should be given to the torque generated by the bus frame and various parts of the carriage after bearing the basic load and additional load. 7.2 Safety factor
The safety factor of the load-bearing components of the carrying mechanism, the connecting device of the traction rope, the braking elements of the bus brake, etc. when bearing the basic load is not less than 5. In addition, it should be considered that there should still be sufficient safety after the basic load and additional load are resisted, bent and fatigued.
T.3 Structure
78.1 When designing a passenger car, safety measures should be taken to ensure that passengers will not fall out of the car or hanging chair under normal circumstances. For example, protective railings and spring buckles can be added to the car or chair. 7.3.2 The doors of closed cars should be locked and cannot be blown away by strong winds. It is not allowed for someone to open the door accidentally. The windows of the car should be made of materials that are not easy to break into pieces. The windows at the crew's work position should be openable, and sufficient ventilation should be ensured in the car. 7.3.3 When designing hanging chairs and other open-type vehicles, it should be considered that the protruding components should not be hung on the passengers' clothes and daily equipment. The seats should have backrests that are slightly tilted backwards and armrests on both sides. The sections should use armrests and footrests that can be opened and closed. The seat width should not be less than 500m. When the chair is swinging 20%, the length of the suspension rod should ensure that the chair can pass through the pulley seat and guide rod, etc. When the chair is swinging 20% horizontally, the passenger cannot reach out and touch any obstacles. The stand-up vehicle must have a railing or cover, and the height of the railing or cover is not less than 1.1m from the bottom. When the open-type carriage is transported (except the chair), the height of the carriage cover is not less than 0.35m from the seat.
了.4 Vehicle Installation
7.4.1 An inspection seat should be set in the reciprocating ropeway passenger car. 7.4.2 Passenger cars with crew members should be equipped with lighting, and passenger cars without accompanying service personnel should be equipped with tail lights. 7.4.3 If standing passengers are transported, a sufficient number of handrails should be provided on the vehicle. 7.4.4 For closed buses with a capacity of more than 6 people, an entrance and exit hole must be left in the pre-shed or floor of the bus. 7.4.5 The relevant information on the bus load, passenger capacity and passenger precautions should be posted in the waiting room or inside the bus. 7.4.9 The following facilities should be available in the car: communication signal equipment, backup lighting equipment, medical care and rescue equipment. T.4.7 Buses should be numbered.
7.5 Ways to connect buses to wire ropes
.5.1 The connection between the transport vehicle and the wire rope can be made by using a cast sleeve, a fixed rope gripper, or a detachable automatic rope gripper. 7.5.2 It must be ensured that the rope gripper or rope gripper cannot automatically disengage on the line under any circumstances or cause movement due to insufficient clamping force.
7.5.3 The anti-slip force of a single gripper or single gripper mechanism shall not be less than the total weight of the bus. In addition, the anti-slip force of the gripper or gripper mechanism shall not be less than 3 times the weight component of the bus when the bus is in the most unfavorable condition (maximum inclination angle, lubricated wire rope, small wire rope diameter). The friction coefficient between the jaws and the wire rope is 0.13. When a bus uses double grippers, the anti-slip force on each gripper shall not be less than 1.5 times the maximum traction force of the vehicle.
7.5.4 If the maximum inclination angle of the wire rope is greater than 40%, there should be two grippers for buses with a capacity of more than two people. Only after sufficient technical demonstration and with the permission of the relevant departments can a single gripper be used. 7.5.5 The fixed gripper shall be able to be easily moved on the wire rope. 7.5.6 When the gripper passes through the driving wheel and the transfer wheel, the angle formed by the carrier at the inlet and outlet of the jaws shall not exceed 16% (9), and the end of the gripper shall be rounded.
7.5.7 A device for measuring the anti-skid force of the turbulent device or the anti-skid force of the turbulent mechanism must be provided. 7.6 Running mechanism
7..1 When running at a constant speed, the forces acting on each running wheel of the running mechanism should be uniform. 7.6.2 When designing, it should be taken into account that when the bus is running under unfavorable conditions, such as the maximum longitudinal and lateral swing, passing the bracket, the maximum acceleration and deceleration, etc., they must not cause the running wheels to lift away from the load-bearing rope, nor cause the running wheels to slip off the load-bearing rope. 7.6.3 The running mechanism must have an additional mechanism to prevent the running wheels from slipping off the load-bearing rope. 7..4 The running wheels of the running mechanism must be equipped with wheel linings. 7.6.5 For reciprocating passenger vehicles with a running speed greater than 13m/s and a passenger car capacity greater than 15 people, a protective device should be installed. 1.6.B In order to prevent the vertical up and down vibration of the rate cable, a shock-absorbing device is installed on the running mechanism. 7.Passenger car brakes
7.7.1 Double-track reciprocating cable cars with a car capacity of more than 6 people must be equipped with passenger car brakes or a double traction rope system. For passenger cars with smaller capacity, it is allowed not to install passenger car brakes only if safety measures such as increasing the safety factor of the traction rope and conducting regular electromagnetic flaw detection on the wire rope are taken.
7.7.2 When the traction rope or the balance rope breaks, the passenger car brake should be able to automatically stop the passenger car on the load-bearing rope. When the parts of the wire rope and the passenger car connection system break, the passenger car brake should also be able to automatically brake. 7.7.3 When there are crew members in the car, the passenger car brake should be able to be manually operated from the car. 7.7.4 When the passenger car brake is applied, the swinging passenger car should be able to ensure that it does not hinder the saddle and the entry and exit of the station. 7.7.5 The braking force of the brake and the selection of brake pad materials should ensure that within the calculated braking stroke, the pads shall not produce excessive separation or exceed the allowable temperature rise, and the spring pressure shall not cause the brake pads to wear out and make the braking force less than the maximum sliding force of the heavy-loaded vehicle. 51
8 Communication equipment, safety circuits and signal systems BE communication equipment
CB12352-90
8.1.1 The station buildings should have their own independent dedicated telephones and a backup communication system. 8.1.2 For passenger cars with a capacity of more than 6 people and automatically controlled cableways, there should be a telephone connection between the car and the drive station. 8.1.3 If there is no requirement for telephone connection between the passenger car and the drive station, in special circumstances, especially in the event of a fault, there should be other communication methods to promptly notify the passengers of the situation (such as installing a pump on the branch channel). County.1.4 There should be at least one station building or an external telephone near the station building. , 1.5 For special-purpose communications, such as lines! Portable radio intercoms should be available for wire rope inspection, equipment maintenance and rescue.
8.2 Safety circuit
8.2.1 All safety devices along the line and in the station should form an interlocking safety circuit, which should be able to stop automatically when an abnormality occurs in the safety device.
8.2.2 The following equipment must be available for F reciprocating or intermittent circulation ropeways: a. Position and speed display of the passenger car on the line; b. If it is a program-controlled ropeway, there should be a line operation program control screen; station entry monitoring equipment, such as when the passenger car enters the station at an excessively fast speed, the device should be able to stop the passenger car within a certain distance in front of the station building c. If the passenger car passes the specified parking position, the ropeway should be able to stop automatically. 8.2.3 For passenger cars equipped with passenger car brakes but without crew members, signal devices, communication devices and passenger car sway monitoring devices should be installed in the car. When the running speed exceeds 7m/s, it should be able to stop automatically. 8.2.4
For ropeways using movable grippers, it must be ensured that: a monitoring device that can automatically operate the gripper is installed at an appropriate position before the gripper grips the wire rope; when the gripper does not hold the wire rope correctly, it should be able to prevent such passenger cars from leaving the station and stop the ropeway; b.
The safety distance in the station must not be less than the braking stroke under the most unfavorable load conditions. In the station, it is necessary to prevent the passenger car from sliding to the left after the gripper jaws are released; d.
The passenger car shall not collide with the turnout and similar equipment; e.
The distance between fog cars shall not be less than the allowable distance, and the distance shall be displayed by signals; f.
8. When the rope is tied, the running speed of the cable car should gradually match the running speed of the wire rope; b. The running direction can only be changed after taking special measures. 8.2.5 There should be a check that the gripping force of the cable car should meet the requirements of Article 7.5.3 every time the cable car is driven uphill. 8.2.6 Emergency buttons and accident buttons that can stop the cable car should be installed in the platform machine room, control room, etc. Emergency stop buttons should be installed in the car with crew members, and emergency stop buttons and signal equipment should be installed in passenger cars with more than 6 people without crew members. 8.2.7 If any of the following situations occur during the operation of the cableway, it must be able to ensure automatic parking: a. The excess of the traction rope of the compound and double-line circulation cableway is too large, resulting in the phenomenon of the wire rope whipping and jumping out of the groove (except for the automatic control cableway): b. The carrier is out of the groove, c. The traction rope slips out and cannot stop the normal return rope wheel: d. When the passenger car brakes: d. When the tensioning hammer and the tensioning trolley exceed the limit position (a display is also acceptable). 8.2.8 After the cableway is emergency braked or suddenly powered off, the driving device shall not be restarted before the accident switch is reset. 8.2.9 The cableway station, line support, non-insulated wire ropes, mechanical equipment and all metal components shall be directly grounded. The grounding connection line of the line 1 is 500m apart. To ensure the reliability of lightning protection, the grounding resistance value should be checked regularly. The requirements for the impulse grounding resistance value are as follows: and. Cableway station <.5Q,
GB 12852-90
b. Mechanical equipment, wire ropes and metal components in the station <59, and pay attention to the reliability of the connection and the pressure balancing, C line bracket must be 30 points smaller.
8.3 Signal system
8.3.1 The operation system should be equipped with signal connection. 8.3,2 Wind warning equipment should be installed at the location with the most wind, and wind speed display devices should be installed in the station with people. 9 Operation
9.1 Personnel requirements
9.1.1 The stationmaster of the cableway station should be a person with rich professional knowledge and sufficient work experience. The stationmaster of the cableway should formulate various measures to ensure the normal operation and safe operation of the cableway according to the type and conditions of the case, establish a post responsibility system, and be responsible for the normal operation, maintenance and safety of the cableway.
9.1.2 The person in charge of the enterprise (institution) in charge of the ropeway and the stationmaster of the ropeway station shall submit to the superior management authority the documents and information required for the assessment of the ropeway in operation.
.1.3 The person in charge of the enterprise (institution) shall grant the stationmaster of the ropeway station all the rights to ensure the safe operation and normal operation of the ropeway. 9.1. The stationmaster of the ropeway station shall be responsible for the professional assessment and training of the staff of the ropeway station, and shall also conduct regular training and training for the personnel participating in the rescue.
9.1.8 The person in charge of the enterprise (institution) unit (or the person in charge) shall keep the technical data (drawings, calculation books, instructions) and update them according to the revisions.
9.1.6 The driver's room of the ropeway station shall be equipped with two drivers, one of whom is the main driver. 9.1.7 The driver should meet the following conditions: a. Aged 18 or above, healthy, and qualified after training; b. Vision (including corrected vision) above 0.7, not color blind; c. Hearing requirement: able to distinguish clearly the sound within 50cm. 9.1.8 The driver should be familiar with the following knowledge:
The structure and technical performance of each mechanism of the ropeway he operates; 8. He should be proficient in the safety operation procedures and safety operation requirements of the ropeway; c. Basic knowledge of the performance of the safety protection device and electrical aspects; c. Basic knowledge of maintenance and repair. The ropeway station should notify the requirements and regulations for passengers through notices. 9.1.9
9.1.10 After entering the ropeway station, passengers should strictly abide by the regulations of the ropeway station: smoking, compensation and throwing away items are prohibited on the vehicle! It is forbidden to bring inflammable, explosive, corrosive or pungent articles on board; b.
For elderly passengers with high blood pressure, heart disease or those who are not suitable for climbing, it is recommended not to take the chairlift: c
Passengers are not allowed to enter the machine room or control room without permission. 9.2 Operation
9.2.1 The stationmaster of the cableway station shall propose service rules and operating procedures and report them to the superior management authority. The service rules shall cover all the contents of the service, such as the operation and maintenance procedures to ensure safe production, and ensure that the following contents can be correctly implemented: b. The regular technical inspection system stipulated by the management authority (see 9.3.2); c. The inspection system of the signal system, c. Rescue rules
d. Equipment status when automatic stop, emergency stop and its safety equipment are in action, troubleshooting and restarting measures (restarting is allowed only when safety is guaranteed): e: Equipment status when safety circuit is powered off and measures for restarting (when operating in an emergency, the cableway station manager or the local representative must be present to allow the cableway to start again in an accident state to transport passengers back to the station building. At this time, the stations should also be able to communicate with each other.3 When there are crew members in the carriage, the passenger car brakes should be able to be operated from the carriage. 7.7.4 When the passenger car brakes are applied, the swinging passenger car should be able to ensure that it does not hinder the saddle and the entry and exit of the station. 7.7.5 The braking force of the brake and the selection of brake pad materials should ensure that within the calculated braking stroke, the pads will not produce excessive separation or exceed the allowable temperature rise, and the spring pressure cannot cause the brake pads to wear and make the braking force less than the maximum sliding force of the heavy-loaded vehicle. 51
8 Communication equipment, safety circuits and signal systems BE communication equipment
CB12352—90
8.1.1 Stations should have their own independent dedicated telephones and a backup communication system. 8.1.2 For passenger cars with a capacity of more than 6 people and automatically controlled ropeways, there should be communication between the car and the driving station. 8.1.3 If communication between the passenger car and the driving station is not required, in special circumstances, especially in the event of a fault, other communication methods should be used to promptly notify passengers of the situation (such as installing a pump on the branch canal). County. 1.4 There should be at least one station building or an external telephone near the station building. 1.5 For special communication purposes, such as line! Wire rope inspection, equipment maintenance and rescue, portable radio walkie-talkies should be available.
8.2 Safety circuit
8.2.1 All safety devices along the line and safety devices in the station should form an interlocking safety circuit, and should be able to automatically stop when an abnormality occurs in the safety device.
8.2.2 The following equipment must be available for F reciprocating or intermittent circulation ropeways: a. a. The position and speed display of the passenger car on the line; b. If it is a program-controlled ropeway, there should be a line operation program control screen; station entry monitoring equipment, such as when the passenger car enters the station at too fast a speed, the device should be able to stop the passenger car within a certain distance in front of the station building c. If the passenger car passes the specified parking position, the ropeway should be able to stop automatically. 8.2.3 For passenger cars equipped with passenger car brakes but without crew members, signal devices, communication devices and passenger car sway monitoring devices should be installed in the car, and when the running speed exceeds 7m/s, it should be able to stop automatically. 8.2.4
For ropeways using movable grippers, it must be ensured that: a monitoring device capable of automatically operating the gripper is installed at an appropriate position before the gripper grips the wire rope; b.
The safety distance in the station must not be less than the braking stroke under the most unfavorable load conditions. In the station, it is necessary to prevent the passenger car from sliding in the opposite direction after the gripper jaws are released; d.
The passenger car shall not collide with the turnout and similar equipment; e.
The distance between the fog cars shall not be less than the allowed distance, and the distance shall be displayed by signals; f.
8. When the hook is tied, the running speed of the case car shall gradually match the running speed of the wire rope; b. The running direction can only be changed after special measures are taken. 8.2.5 A check should be provided. The size of the gripper's tightening force shall meet the requirements of Article 7.5.3 every time the passenger car drives up the mountain. 8.2.6 Emergency buttons and accident buttons that can stop the ropeway should be installed in the platform machine room, control room, etc. Emergency stop buttons should be installed in the cars with crew members, and emergency stop buttons and signal equipment should be installed in passenger cars with more than 6 people without crew members. 8.2.7 The ropeway must be able to stop automatically when any of the following situations occurs during operation: a. The residual amount of the traction rope of the compound and double-line circulation ropeways is too large, resulting in the phenomenon of the wire rope whipping and jumping out of the groove (except for the automatic control ropeway): b. The carrier rope is out of the groove; c. The traction rope slips out and cannot stop the normal return rope wheel; d. When the passenger car brakes: e. When the tensioning hammer and tensioning trolley exceed the limit position (it is also acceptable if there is a display). 8.2.8 After the ropeway is emergency braked or the power is suddenly cut off, the drive device shall not be restarted before the accident switch is reset. 8.2.9 Cableway station building, line support, uninsulated steel wire rope, mechanical equipment and all metal components shall be directly grounded, and the distance between grounding lines shall be 500m. In order to ensure the reliability of lightning protection, the grounding resistance value shall be checked regularly, and the impulse grounding resistance value requirements are as follows: and. Cableway station building <.5Q,
GB 12852-90
b. Mechanical equipment, steel wire rope and metal components in the station <59, and pay attention to the reliability of the connection line and the voltage balancing, C line support must be 30 points smaller.
8.3 Signal system
8.3.1 The operation system shall be equipped with signal connection. 8.3,2 Wind warning equipment shall be installed at the most wind-affected location, and wind speed display device shall be installed in the station building with people. 9 Operation
9.1 Personnel requirements
9.1.1 The stationmaster of the cableway station shall be a person with rich professional knowledge and sufficient work experience. The cableway stationmaster shall formulate various measures for the normal operation and safe operation of the cableway according to the type and conditions of the cableway, establish a post responsibility system, and be responsible for the normal operation, maintenance and safety of the cableway.
9.1.2 The person in charge of the cableway in the enterprise (institution) shall submit to the superior management authority the documents and materials required for the assessment of the operation of the cableway.
.1.3 The person in charge of the enterprise (institution) shall grant the cableway stationmaster all rights to ensure the safe operation and normal operation of the cableway. 9.1. The cableway stationmaster shall be responsible for the professional assessment and training of the staff of the cableway station, and shall also conduct regular training and training for the rescue personnel.
9.1.8 The person in charge of the enterprise (institution) (or a special person) shall keep the technical data (drawings, calculation books, instructions) and update them according to the revisions.
9.1.6 The driver's room of the cableway station shall be equipped with two drivers, one of whom is the main driver. 9.1.7 The driver should meet the following conditions: a. Aged 18 or above, healthy, and qualified after training; b. Vision (including corrected vision) above 0.7, not color blind; c. Hearing requirement: able to distinguish clearly the sound within 50cm. 9.1.8 The driver should be familiar with the following knowledge:
The structure and technical performance of each mechanism of the ropeway he operates; 8. He should be proficient in the safety operation procedures and safety operation requirements of the ropeway; c. Basic knowledge of the performance of the safety protection device and electrical aspects; c. Basic knowledge of maintenance and repair. The ropeway station should notify the requirements and regulations for passengers through notices. 9.1.9
9.1.10 After entering the ropeway station, passengers should strictly abide by the regulations of the ropeway station: smoking, compensation and throwing away items are prohibited on the vehicle! It is forbidden to bring inflammable, explosive, corrosive or pungent articles on board; b.
For elderly passengers with high blood pressure, heart disease or those who are not suitable for climbing, it is recommended not to take the chairlift: c
Passengers are not allowed to enter the machine room or control room without permission. 9.2 Operation
9.2.1 The stationmaster of the cableway station shall propose service rules and operating procedures and report them to the superior management authority. The service rules shall cover all the contents of the service, such as the operation and maintenance procedures to ensure safe production, and ensure that the following contents can be correctly implemented: b. The regular technical inspection system stipulated by the management authority (see 9.3.2); c. The inspection system of the signal system, c. Rescue rules
d. Equipment status when automatic stop, emergency stop and its safety equipment are in action, troubleshooting and restarting measures (restarting is allowed only when safety is guaranteed): e: Equipment status when safety circuit is powered off and measures for restarting (when operating in an emergency, the cableway station manager or the local representative must be present to allow the cableway to start again in an accident state to transport passengers back to the station building. At this time, the stations should also be able to communicate with each other.3 When there are crew members in the carriage, the passenger car brakes should be able to be operated from the carriage. 7.7.4 When the passenger car brakes are applied, the swinging passenger car should be able to ensure that it does not hinder the saddle and the entry and exit of the station. 7.7.5 The braking force of the brake and the selection of brake pad materials should ensure that within the calculated braking stroke, the pads will not produce excessive separation or exceed the allowable temperature rise, and the spring pressure cannot cause the brake pads to wear and make the braking force less than the maximum sliding force of the heavy-loaded vehicle. 51
8 Communication equipment, safety circuits and signal systems BE communication equipment
CB12352—90
8.1.1 Stations should have their own independent dedicated telephones and a backup communication system. 8.1.2 For passenger cars with a capacity of more than 6 people and automatically controlled ropeways, there should be communication between the car and the driving station. 8.1.3 If communication between the passenger car and the driving station is not required, in special circumstances, especially in the event of a fault, other communication methods should be used to promptly notify passengers of the situation (such as installing a pump on the branch canal). County. 1.4 There should be at least one station building or an external telephone near the station building. 1.5 For special communication purposes, such as line! Wire rope inspection, equipment maintenance and rescue, portable radio walkie-talkies should be available.
8.2 Safety circuit
8.2.1 All safety devices along the line and safety devices in the station should form an interlocking safety circuit, and should be able
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