Some standard content:
1CS.47.080
National Standard of the People's Republic of China
GB/T 16302--1996
Technical reguirement of free-fall lifeboat
Technical reguirement of free-fall lifeboat1996-04-25issued
1997-01-01implemented
issued by the State Technical Supervision Commission
GB/T16302
This standard is based on the International Maritime Organization (IMMO)\International Maritime Safety Convention (SLAS) 1283 standard in 1974, the International Maritime Organization (IMO)\Effective Life Test\Maritime Safety Convention Resolution A (6%9) 17, Maritime Safety Convention No. 51G, and SLAS Chapter III The two documents are shortened and the technical content is the same. This standard is proposed by China National Shipbuilding Industry Corporation. This standard is under the jurisdiction of the Technical Committee of the State Shipbuilding Industry Standardization Technical Committee: This standard was drafted by the Beihai Shipyard Research Institute. The main promoters of this standard are: engineers.
1 Scope
National Standard of the People's Republic of China
Technical conditions for free-fall lifesaving solutions
Technical reyulrement of free-full JifeboatGI/T16302:1996
This standard specifies the technical requirements, test methods, inspection specifications and marking devices of fiberglass fully enclosed free-fall lifeboat (hereinafter referred to as free-fall lifeboat).
This standard is used for fully enclosed free-fall lifeboats on oil drilling platforms for international and domestic navigation, including free-fall type, self-supplied air-bomb type and fire-resistant free-fall fully enclosed lifeboats. 2 References
The provisions contained in the following standards shall be used in this standard by citing the provisions of this standard. Article, when this standard is published, the version shown is valid, all standards will be revised, and all parties using the standard should explore the possibility of using the new version of the standard. GB146-63 Test method for fiber reinforced plastics GB1447-83 Test method for tensile properties of glass fiber reinforced plastics GB1149-83 Test method for bending properties of glass fiber reinforced plastics GB1431-3 Test method for impact toughness of glass fiber reinforced plastics GB1462-88 Test method for water absorption of fiber reinforced plastics G208-83 Test method for water absorption of fiber reinforced plastics GB2423.17·93, GB11573-89 ... 3.3 The maximum distance from the water surface to which the free-fall lifeboat is subjected during descent. 3.4 The rate of change of the degree of harm caused by the free-fall lifeboat during descent to which the occupants are subjected in excess of the level specified in this performance standard. 3.5 Positive heel angle
The ability of a free-fall lifeboat to leave the water surface after free-fall. 3.6 Water entry angle
The angle formed between the keel and the horizontal plane of a free-fall lifeboat when it first enters the water after descent. Approved by the National Technical Supervision Commission on April 25, 1996 and implemented on January 1, 1997
4 Technical requirements
4.1 Teaching requirements
GHT16302-1996
4.1.1 The production control of free-falling cosmetics shall be in accordance with the standards approved by the Beijing Inspection Department. 4.1.2 The self-propelled lifeboat can be stored in an environment of -30--65 degrees without being damaged. 4.1.3 It can function normally in a seawater environment of 1~4.1.4 Its design and materials should be resistant to rot and turbidity, and not be excessively affected by swimming water, bacteria and other substances. 4.1.5 It has the ability to resist aging and deterioration under sunlight and exposure. 4.1.6 The allowable deviation of the total number of lifeboats is: 1.5 times ... The storage method should be able to avoid landing outside the inspection. 4.1.9 Each slow-release model should be equipped with a release system. The system should include two independent emergency systems for release. The system can only be operated in the courtyard. The model has proper protection and is designed to be able to conduct the test of the landing. 1.1 When designing the free slide, the specific needs of the height, length and angle of the slide should be considered. 4.1.11 The calculated weight of an ordinary occupant adopted in this standard is 75kg. 4.1.12 At each seat, carefully measure the center of gravity with a human body, and the backrest should be 3 tons higher than the inspection position. 4.2 The near
4.2.1 The free economic release capacity should be able to meet the temporary needs of the lifesaving equipment. 4.2.2 The life-saving equipment should be strong enough to withstand the load under the following circumstances without deformation: m! When the life-saving equipment can support the load equivalent to 1.5 times the full load state when it is dropped from the tunnel automatically, it should be able to provide support for the head and body of the occupant. Each seat should be able to support the force applied by the occupant during the self-descent process when the weight of the occupant is 1g. The back of each seat should be of a bright contrasting color. The design of the seat belt should be able to hold the person with half the weight of U to the ground quickly, and limit the movement of the person in various directions when in free fall and in the recovery position.) The free fall lifeboat should be designed so that it can provide protection against the effects of harmful acceleration caused by falling into water from an approved height under full load and in adverse conditions such as a horizontal load of up to 10° and a horizontal load of up to 2 hours.
4.2.3 The free fall lifeboat should be equipped with a complete cover to ensure watertightness, and its layout should meet the following requirements: a) protect the occupants from the danger of cold and pressure; b) the access channel for entering the free fall lifeboat should be able to be closed, so that the free fall lifeboat can remain watertight! Door balances should be placed in places where passengers need to leave the enclosed city in order to implement free fall and recovery operations; doors and windows used for passage should be able to be opened and closed from both inside and outside, and some devices should be designed to ensure that they remain in the open position reliably! The door and window network should be able to support all the weight of all equipment, machinery and new supplies before free fall when it is in the main position and there is no obvious leakage: 1) Light blocking or translucent panels should be installed to allow sufficient light to enter when all doors and windows are closed without manual illumination; 2) The exterior of the top should be bright color, and the interior should not make the occupants feel uncomfortable; 3) Rails and facilities should provide possible assistance for people walking outside the boat, and facilitate boarding and leaving; 4) People should be able to reach their seats from the entrance, especially by crossing trees or barriers: 5) Protect the occupants from the dangerous negative pressure that may be caused by turmoil caused by free fall. 4.3 Capacity of free-fall lifeboats
4.3.1. The number of people on board a free-fall lifeboat shall not exceed 150. 4.3.2 The width of the seats shall not be less than 430mm, the height of the backrest shall be at least 535mm, and the height above the seat pan shall be at least 1000mm (see Figure 1). 4.3.3 The location of each seat shall be clearly marked on the internal layout of the free-fall lifeboat. 4.4.1 A free-fall lifeboat shall be equipped with a ladder accessible at the bottom for easy access. The vertical distance below the lower limit of the free-fall lifeboat shall not be less than 0.4m. 4.4.2 The free-fall lifesaving device shall be capable of pulling incapacitated persons from the sea or from a stretcher. 4.4.3 All surfaces on which persons can walk shall be provided with an anti-skid layer. 4.4.4 The vertical distance from the surface with a capacity of more than 50% of the inner bottom area to the inner surface of the enclosure shall meet the following requirements: 1) For free-fall lifeboats with a crew quota of less than 9 persons, not less than 1.3m + 6m; 2) For free-fall lifeboats with a crew quota of 24 persons or more, not less than 1.71m; 3) For free-fall lifeboats with a crew quota of 9 persons or more, not less than the weight determined by linear interpolation between 11.3m and 1.m.
4.5 Standard buoyancy of free-fall lifeboats
The free-fall lifeboat shall have natural buoyancy or be provided with a barrier that is not affected by water, oil or petroleum products. The natural buoyancy materials shall be sufficient to keep the free-fall lifeboat with all the accessories out of water when it is breached and leaks into the sea. For each rated load, an additional buoyancy material of 2XVN buoyancy shall be provided. The above-mentioned buoyancy materials shall not be provided on the outside of the free-fall lifeboat unless they are buoyancy materials other than those required above. 4.6 Requirements and performance of free-fall lifeboats 4.6.1 The shape and size of the free-fall lifeboat shall be so that it has sufficient water resistance in the waves when fully loaded with all the accessories. Even if any part below the waterline is damaged, it shall remain stable as long as there is no loss of buoyancy or other damage.
4.6.2 When 5% of the rated occupants are seated in the center of the vessel in a leaning position, the true dry energy shall be at least 1.5% of the vessel length (100 nm).GA.T16302-1996
whichever is greater. The dry energy is measured from this line to the lowest opening in the flooded state: 4.63 The stability of the self-launching lifeboat shall be such that it can self-right itself when fully loaded and lightly loaded, with all openings closed and all crew members fastened with safety belts, regardless of the angle of the person. 4.4 Self-righting When any part below the waterline is damaged, even if it is subjected to a low pressure, it should be able to move to a position above the waterline for the remaining personnel after the tilting moment is eliminated. 4.7 Landing equipment 4.1 Free-falling boats should be powered by compression ignition engines. The flash point of the fuel should be greater than 13C (flame test). 4.7.2 The engine should be equipped with a manual starting system and a power-starting system that can use two independent rechargeable power sources. Any necessary starting auxiliary equipment should also be provided. The engine starting system and power-starting auxiliary equipment should start the engine within 2 minutes after the start of the starting operation procedure when the ambient temperature is -15°C. The engine housing, thwarts or other obstacles should not hinder the starting device. 4.7.3 The engine should be able to rotate for not less than 5 minutes after the free-falling boat is separated from the water-cooled engine. 4.7.4 When the water level in the self-landing effect reaches the centerline of the crankshaft, the engine can still operate. 4.7.5 The fuel shaft system should be arranged so that the fuel can be disconnected from the engine and an engine positive stop device should be provided. 4.7. The arrangement of the engine exhaust pipe should be able to prevent water from entering the engine when it is in a running state. 4.7.7 The design of the free-falling lifeboat should fully consider the safety of people in the water and the possibility of damage to the system caused by turbulent currents. 4.7 When loaded with full wind and two lifeboats and all auxiliary devices driven by the engine are operating, the forward speed of the lifeboat in calm waters shall be at least 6 kn. When it is towing only 25 lifeboats with all passengers and relief gear or an equal load, the forward speed of the lifeboat in calm waters shall be at least 2 kn. The fuel shall be suitable for the expected temperature range of the ship's operating area, and the exhaust gas shall be sufficient to operate the lifeboat at a speed of not less than 6 kn. 4.7.9 The engine, transmission and engine accessories of the lifeboat shall be surrounded by flame retardant shells and other appropriate protection according to the type of protection. This equipment shall ensure that the passengers are protected from accidental contact with hot and rotating parts. Suitable devices to reduce engine loads shall be installed. The starting device battery should be stored in a box with a tight enclosure formed at the bottom and sides. The battery box should be equipped with a tight fitting and equipped with necessary air holes.
4.7.10 The design of the engine and timing equipment should limit the radiation of electromagnetic waves so that the operation of the engine will not interfere with the operation of the radio equipment used in the vehicle: 4.7.17 All batteries for the starting engine, the radio and the lights should be equipped with a recharging device: the dead battery shall not be used as the power for starting the engine. The landing battery recharging device should be equipped with power supplied from the ship's power supply. The power supply voltage shall not exceed 55V and can be disconnected at the boarding position of the lifeboat. 4.7.12 There shall be a waterproof plate for starting the engine and operating the engine and a notice shall be posted clearly near the starting controller. 1.7.13 The engine and its equipment shall be able to operate in any position during the transfer process, including in any mixed state, and can stop automatically after the transfer. It shall be easy to restart when the lifeboat returns to normal buoyancy. The design of the fuel system and lubricating system can prevent the loss of engine irritant and lubricating oil during the rollover operation. 4.8 Self-launching lifeboat parts
4..1 The free-launching lifeboat shall be equipped with a drain valve at the lowest point of the vehicle. When the free-launching lifeboat leaves the water, the valve can automatically open to drain the water out. When the free-launching lifeboat floats on the water, the valve can also automatically close to prevent seawater from entering. The water-holding valve should be equipped with a cover or plug that can be closed and attached to the free-launching lifeboat with a short rope, chain or other means. The drain valve should be located in an easily accessible place in the boat and its position should be clearly marked. 4.B.2. The free-launching lifeboat should be equipped with energy (or rotatable guide bone) and energy jettisoning. When it is equipped with energy wheels or other strictly controlled coal When the free-fall lifeboat is equipped with a control device, the control device should still be able to control the energy blades when the control device fails. The energy blades should be permanently installed on or connected to the pole. However, if there is a reverse control device, the energy blades can be detachable and stored securely nearby. According to the needs, a control system should be provided to prevent damage to the propeller and energy system during landing. 48.3 Except for the area near the spiral, a water tank or a water tank with sufficient capacity should be installed along the outside of the free-fall lifeboat to provide small nets, water and food. GB/T16302-1996
4.5 The free-fall lifeboat should be equipped with a permanent ground connection for a backup radio and a non-loaded power supply for the portable rescuer. All antennas provided are in suitable working positions and fixed with facilities. 4.8-6 The free-fall trainer shall be equipped with a position indicator light approved by the original plan, which shall be used for not less than 126 hours. A number of approved lighting lamps shall also be installed at the bottom of the trainer.
4.8-? The layout of the control position calculation shall provide a suitable range of forward and backward directions to enable safe landing and operation of the free-fall trainer.
4.8. The layout of the air supply system of the fully enclosed free-fall trainer shall be designed to ensure that the air inside is safe and suitable for breathing after the openings are closed. The maintenance period shall not be less than 1 minute when the engine is running normally. During this period, the ambient pressure inside the boat shall not be lower than 10 atmospheric pressure outside, and it shall not exceed the outside pressure. Atmospheric pressure 2D00P or less: The system is equipped with a gauge that can always indicate the pressure of the gas source. 4.8.9 The fire-resistant fully enclosed self-release lifeboat should be designed to provide protection for the boat when it is exposed to a continuous oil fire for not less than 81 minutes on the water surface. Its fire protection system should meet the following requirements: a) The self-priming water-driven seawater engine should be able to open and close the water flow without external surface water; b) The layout of the water inlet should be able to prevent the ingress of flammable substances. The system should be able to completely drain the water. 4.8.10 The front and rear suspension seats and angle-designed suspension equipment should be provided for free-fall lifeboats. 4.9 Free-fall lifeboat equipment
Free-fall lifeboat accessories should be properly tied or stored in a corresponding box.The tools should include the items listed in Table 1. Table!
With uniform moisture
Water-resistant
Teaching students in the register
Compass
Peace sample
Recovery material measuring cup
Detailed service light signal
Hand-held fireworks signal
Waterproof hand signal
H light street number
Number of students staying at the station
Emergency number package
No tempering memory
No material memory
Competition requirements
Installed at the large table
With grape clothing
Short handle, grass surface, one for each
Installed in the mold
! Stainless steel material
【Each hot plate 13M airtight also installed in the order dry report watertight installation
Water insects are
Note the spare electric leakage and spare bulb, installed in the anti-state sensor
Printed on the tire water paper or installed in the waterproof content group equivalent confirmation number
Set ten waterproof Yan inside
Clear treatment
Teachable blue ring
About the use of
Mechanic repair soldiers
Courtesy wet soldiers
Required to reach the technical shooting salt
Guarantee super standard
Test method
5-1 White by the reduction of travel effect of sleep material Material test age
5.1-1 Flame retardant test of materials
GR/T16302—1996
Performance table:
6 doses/person
item0 person
Basic requirements
It is a floating case with a length of not less than FS
Spot machine tools
Chuzhou oil fire extinguishing
In accordance with the provisions of SOLAS41.8.29
Or for pieces, the materials of the temporary plan and the case are subjected to flame retardant test. The method is to put a test column of the material in the flame and burn it to determine its combustion characteristics. After removing the firebox, measure its stepping time and combustion degree. The test results meet the requirements of the test. 5.1.2 Buoyancy material test
5.1.2.1 Stability test under temperature cycle a) A test piece with the size of 200mmxnmx10mm is subjected to a temperature cycle of -1°C, but each shrinkage element needs to be short-circuited one by one, and the floating balance can be obtained for 10 cycles. On the first day, complete a high humidity process of 81°C and 65°C; at the same time, take out each test piece from the overflow chamber and spread it under the required temperature to the next outlet. On the second day, complete an 8h, -30°C low temperature process for one day, take out the test piece from the cold, spread it under room temperature and place it on the new plate. b) As above, after 10 cycles, record the size of each test piece, carefully check each sample, and there should be no signs of any structural or mechanical quality changes.
) Cut the two samples and there should be no signs of any structural changes. 5-1.2.2 High octane gasoline test
The two samples that have been treated by temperature cycling are horizontally immersed in high octane gasoline (octane value is not less than 37) with a pressure of 10m under temperature for 24 hours. After the test, there is no shrinkage, cracking, enlargement, separation, etc., and no change in mechanical properties. 5.1.2.3 Petroleum product test
1) Use 1 (1 h size is 200mm×2 5sm×10mm±1)mm diameter The test specimens of each test in 5.1.2.1 are respectively placed at room temperature (about 5℃) 10m below the oil surface, and the jade head is not soaked. One is mixed in crude oil; one is mixed in fuel oil; one is mixed in diesel; one is mixed in coal pool; and one is mixed in high-octane gasoline. GB/T16302
b) Changes in the dimensions of the specimens at the start and end of the test. 1996
\) The reduction in strength shall not exceed 5%, and the specimens shall not show changes in properties such as shrinkage, rupture, enlargement, decomposition, mechanical degradation, etc. 5.12.4 The suction test shall be carried out in filtered water according to the Www.bzxZ.net
test procedure, and the test shall be expanded to filtered water with a water head of 1.2 m. The duration is 7. 1) The test sequence is two specimens in the as-delivered state: two specimens that have been subjected to reverse high and low temperature cycles according to 5.1.3.1 test 5.1.2.2 test Two specimens that have been subjected to high and low temperature cycles and have been immersed in a high-temperature oil bath b) The dimensions of the specimens before and after the test. ) After immersion in water from the 1st day to the ?th day, determine the amount of support each specimen can provide in water, d) For the specimens subjected to the high-pressure agitation test, the reduction in buoyancy shall not exceed 16%: For other specimens The depth of the test piece shall not exceed 10 degrees. The test piece shall not show any signs of damage such as shrinkage, cracking, enlargement, decomposition, or any change in mechanical properties. 5.2 Model test of self-propelled descent
5-2.1 The design of the descent model shall take into account the adverse tilt, rapid tilt, fire point, adverse repositioning, and the most severe loading conditions, and various landing tests shall be carried out at the intended storage height. 5.2.2 During the required self-propelled descent, the different degrees of suspension training within the specified period shall be evaluated to determine the most different accelerations to which the occupants will be subjected, taking into account the layout of the landing gear. 5.2.3 Each test may be carried out using a model of accurate dimensions of at least 1 m in length. The following model tests shall be carried out at a height higher than the approved height of the main clause 1.\compensation standard
a) Full load, slightly empty;
b) Empty board (half of the passengers are distributed on the front seats) Half of the passengers are distributed on the rear seats. The above boats are subjected to low-load drop tests at angles of 1 and 2 respectively. The above boats are subjected to slow drop tests at angles of 0° and 0° respectively. The above boats are subjected to slow drop tests at angles of 3 and 20° respectively. 5.2.4 Acceptance criteria for free-fall lifesaving test: 1) During the process of launching, landing and receiving people into the water, the acceleration shall meet the requirements of formula (1). b) After entering the water, the free-fall lifesaving belt can immediately leave the mother ship. 5.3 Free-fall lifesaving overload test 5.3.1 The lifesaving boat shall have sufficient strength to withstand 1.5 times the force of the full-load static load test. 5.3.1.1 The following data of the lifeboat launched by the fully loaded launch equipment are obtained by measuring the following: a) keel, b) length at deck, c) swell, swell, and depth of the boat: a) 1/4 of the length and width of the boat at the forward end, from the side to the keel.
5.3.1.2 Add all personnel and accessories (1.5 times the full load of the substitute for the useful objects) to the same position as in 5.3.1.] a) keel test plate, the straightness of the launch boat:
6) at the extreme point of the collapse 15:
) at 1/4 of the length and width
the change from the side of the boat to the keel depth,
5.3.1.3 Compare the two test models, and the effective boat length obtained at the upper part, the deformation of the boat should not exceed 1/400 of the length:
GB/T16302-1996
5.3.1.4 After the empty boat is placed for 18h, measure the above-mentioned parts directly. There should be no obvious deformation. 5.3.2 The self-delivery boat shall be reversed to 1.3 times the standard altitude for free fall test. 5.3.2.1 The assembled free-falling lifeboat shall be placed on the lock rack with a high rate of 1.3. A 100kg sandbag shall be fixed on each seat of the boat with a safety belt, and a 75kg sandbag shall be fixed on the other seats (safety belts are not required). All the equipment shall be evenly loaded on the boat and then the release device shall be released to make the boat slide freely down the designed slideway at a speed of 10000 m to the departure point and land freely on the slideway into the sea. If the free-falling lifeboat is usually dropped from a slideway, the vertical ball drop method may be used for this test, but the angle of the boat should be equal to the angle of the boat to the water when it is usually dropped into the water. 5.32. After the free-falling lifeboat is dropped from the slideway, no damage affecting its use shall occur, that is, the main engine can operate normally, the water system can operate normally, the air supply system can supply air normally, and there shall be no damage to the integrity of the structure. Then press 8 to carry out the operation test. This test is to clean and inspect the damage of the equipment. 5.3.3 Strength test of passenger seats for free-falling lifeboats. Free-falling lifeboats should be subjected to a sound test. Place a 100kg weight on each passenger seat. The arrangement of the load on the seat should be restored. The seat pan and backrest are affected. When the free-fall is carried out at 1.3 times the approved height, the seat can support this load. Check the following items:
a) Whether the safety belt is pre-damaged.
1) Whether the seat is permanently deformed or damaged. 5.4 Free-falling lifeboat stability test and drum test 5.4.1 Incline test
Put the empty free-falling lifeboat in calm waters, measure the pan and record the approximate draft. A fixed seat for the connecting pipe with a mark is set in the middle of the free-falling lifeboat, which is directly above the draught of the boat.Line, and measure the vertical distance between the two tubes, place two iron blocks of a certain weight on the two right seats at 1/4 of the distance from the end of the ship, then move the positions of the iron blocks in order, and record the readings of the connecting pipes, and complete them in succession. During the entire test process, the positions of the personnel on the boat should not change, and record the positions. The purpose of the test is to verify the calculated initial center of gravity and center of gravity position.
5-4.2T Xuan test
Empty state unload half of the approved occupants in the specified position, then measure the value of the lower side of the symptom from the water surface to the lower part, which should be not less than 1.5 of the boat length or not less than 1cm, whichever is greater, the test is qualified, 6.4.3
The free-fall lifeboat should be built in the fully loaded and empty states respectively. During the self-righting test, the tools and other substitutes should be fixed on the corresponding positions. At the same time, a weight equal to the basic weight of the passengers (75kg per person) should be fixed at each seat, and the center of gravity should be kept at 3KImm above the seat surface. The self-righting test in the empty state is similar to that in the full load state except that the weight of the passengers is not taken into account. At the beginning of the test, the engine should be started and let it idle. Then try to close the room (except for ventilation) and gradually rotate it 180 degrees from the full load to the overturned state. After it stabilizes, it will be released. The self-falling lifeboat should be able to automatically restore the positive floating position. The engine should continue to run when it reaches the positive floating position. 5.4.4 Submersion test The test confirmed that the boat still has positive stability when it is in the sea. The boat is fully equipped during the test. However, the weight of the passengers is calculated as 28N per person in consideration of the buoyancy generated by water ingress. The center of gravity should still be 300m above the seat surface. The electrical equipment that may cause damage can be removed and replaced by other equipment. Then, water is let in the boat until the internal and external water levels are After the free-fall lifeboat is level, a person shall stand on one side. The boat shall not tilt.
5.4.5 Filtration test
Fill the empty free-fall lifeboat with water until the inner and outer water surfaces are level. Then open all the doors and try to slowly rotate the whole boat around its longitudinal axis to 180 degrees to restore its normal state. After maintaining stability, release it and free-fall lifeboat to a position above the waterline to provide passengers with an optimal position. The accessories can be provided by relevant The weight of the engine should be replaced by a heavy object of equal weight, but it should be placed in the corresponding position. The power installation should take appropriate measures to prevent water from entering the engine. The electrical equipment that may cause damage can be removed, but it should be compensated by a single object of equal weight. 5.5 Passenger remote test CB/T1632-1996 5.5.1 The engine accessories and other necessary equipment should be arranged on the table. After that, make sure that the average weight is about 75k and all the passengers wearing training suits board the boat and take seats in the specified positions. For the light-impaired boat, the training boat should be checked within 3mr; for the slow-impaired boat, the training boat should be tested as soon as possible to verify that it is not difficult to use or cannot accommodate passengers. 5.5.2 It should be possible to put the person who has lost the ability to help himself on a stretcher into the boat. 5.5.3 Check the surface of each element, which should have a protective layer. 5.6 Test the structure of the self-propelled boat launcher
5.6.1 Install the release mechanism on a tensile strength test device. The tensile load should be increased to at least 6 times the working load of the mechanism. 5.6.2 Prove through the test whether the release mechanism can work effectively when the boat is loaded with a load of 2 times the full load. 8) Release with the normal mechanism:
b) Release with the spare release mechanism.
5.6.3 Check whether the release mechanism can operate efficiently and whether the parts connected with the release mechanism are damaged. 5.7 Determination of the actual free fall acceleration field The acceleration field of the airborne lifesaving device at the heaviest seat satisfies the formula (1), Vtr./15)* +(8,/7)(R./7)*+: 1.0 Formula 10: – acceleration of the ball in or out, m/s, K, – acceleration of the ball in the suction direction, m/s\
g. – acceleration of the ball in the upward/downward direction, /s(1)
The acceleration field is determined when the mother ship is in a positive buoyancy state and the airborne free fall lifesaving device can descend from the approved height to almost calm water surface. 5.7.1 Accelerometer selection
The accelerometer shall be of a type that meets the following conditions: a) has adequate response to the test to be performed: 6) has a response of at least ~-200 Hz and its range shall include all G levels occurring in the test with an accuracy of ±5%. 5.7.2 Accelerometer location
The accelerometer shall be located in the boat parallel to the main axis of the landing process. The accelerometer shall be located in a position that allows the determination of the worst possible stress conditions.
5.7. 3. Installation of accelerometers
The accelerometer should be installed in a suitable place to minimize vibration and slip. 5.7.4 Record the release rate
and the accelerometer should record in analog form: b) If the accelerometer is recorded in digital form, the measured value shall be at least 500 times/9. 5.7.5 The data of the free fall test of the actual boat shall be interpreted as follows: a) The test shall be conducted electronically or by a portable averaging process. b) The drop rate shall be less than 20% lower than
e) When using an average process with a frequency below 20 Hz, the effective time length of the test shall be 50 mg. 5.6 The velocity field at the seat shall be calculated according to the acceleration data measured on the test according to the procedure approved by the competent authority. 5.7.7 After the above documents are signed, the test shall be carried out under the following four conditions: fully loaded
a) with a minimum number of operators:
GR/T16302--1996
half of the operators are in the front seat d) empty half of the load 5.7.8 Acceptance of free-fall lifeboats
The free-fall lifeboat test shall meet the following conditions for acceptance:) during the entry of the person into the water, the added seat force shall be combined with the formula in Article 5.7: 1) b) after falling into the water, the total energy of the lifeboat will be dissipated. 5.8 Free-fall lifeboat follow-up test
E.8.1 The free-fall lifeboat shall be tested under at least a small load condition to prove that its engine is operating well and the boat is maneuverable.
-5-8.2 The test shall prove that the free-fall lifeboat can carry 25 persons with the approved crew and necessary equipment at a speed of not less than 2k1.
5.B3 The free-fall lifeboat shall be tested at a speed of not less than 6k1 to prove that the fuel tank has enough fuel to keep moving forward continuously.
5.8.4 The speed of the free-fall lifeboat in still water shall be tested and the value shall not be less than k1.
5.8.5 The performance of the required equipment shall be tested and the equipment shall not be excessively affected by the magnetic equipment and accessories.
5-9.1 In the free-fall lifeboat sequence, the air source system shall be made to flow into the engine at full speed without the doors being opened. The positive force inside the ring shall be continuously tested to prove that the pressure inside the engine can always be maintained at a level not greater than 20 m. 5.9.2 The test shall verify that the vehicle air supply system is in a positive air supply period. Even if the engine stops suddenly, the air pressure is not close to the outside atmosphere and is controlled at a positive pressure of no more than 2a.
59.3 The test shall verify that when the air source is completely removed, the dynamic device will work immediately to limit the internally generated sudden air pressure. 5. Endurance test
5. 10.1 Water quality test
5.10.1.1 Water quality test system effect test You can use water quality test to make the engine run at a new speed, and measure the pressure of the engine every minute to achieve the rated speed and power. 5.10.1.2 The engine is in a no-load positive floating state: Longchen is running smoothly. The dynamic water rate reaches the idling water seal flow pad, and the water film thickness on the outer surface of the disk meets the design requirements. 5.10.1.3 The water tanker should be in an empty state and the landing efficiency should be 5%, and the left and right sides should be driven in the horizontal direction. Under the condition of rated speed, the system should measure the pressure at the suction end and the pressure at the indicated end. The measured pressure should meet the requirements under each impulse condition. When the pressure is in the direction of the water tanker, the water tanker can cover the entire surface of the boat. 5.10.2 Fire test 5.10.2.1 The fire rescue port should be moored in a small area of 1+3 times the area of the center of the center. The fuel oil should be completely contained in the side of the port. The fuel oil should be dried during the process. 5.1.2.2 The engine should be fully reversed. The propulsion should be started. During the fire test, the gas source and fire prevention system should always be started.
5.1-2-3 Ignite the fuel and allow it to burn continuously for 3 minutes.5.10.2.4. The temperature of at least 10 places on the inner surface and at least 3 places on the inner surface occupied by the case shall be recorded. The temperature recorder shall meet the requirements. The method of measuring temperature shall be able to record the temperature of the entire outer surface and the temperature of the roasting. 5.10.2.5 The temperature of the outer surface and the roasting temperature shall be recorded. 5.10.2.6 The gas in the chamber shall be continuously sampled, and the representative gas shall be analyzed to verify whether there are toxic and harmful gases or substances and their quantities. The analytical method adopted shall be able to analyze the possible production of toxic and harmful gases or substances according to the materials and production processes used.
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