Some standard content:
National Standard of the People's Republic of China
Installation specification for road traffic signals
The installation specification for road traffic signals
Subject content and scope of application
GB 14886-
— 94
This standard specifies the installation basis, installation method and installation requirements of road traffic lights (hereinafter referred to as signal lights). This standard applies to the installation of signal lights at road intersections (hereinafter referred to as intersections) and road sections across the country. 2 Reference Standards
GB2893 Safety Color
GB396 Ring Reinforced Concrete Pole
GB5768 Road Traffic Signs and Markings
Low Voltage Distribution Devices and Line Design Specifications||tt ||GBJ54
3 Terms
3.1 Main Road: The road with large traffic flow at the entrance intersection is called the main road. 3.2 Branch roads: Roads with small traffic volume entering intersections are called branch roads. 3.3 Main signal light (hereinafter referred to as main light): The motor vehicle lane signal light installed on the right side of the road traffic direction is called the main light. 3.4 Signal light auxiliary light (hereinafter referred to as auxiliary light): The motor vehicle lane signal light installed on the left side of the road traffic direction is called auxiliary light. Installation basis of signal lights
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4.1 When entering the same intersection during peak hours and 12-hour traffic flow exceeds the values ??listed in Table 1 and there are special requirements for the intersection, motor vehicle lane signals can be installed.
4.2 At intersections with motor vehicle lane signals, when the road has lanes for motor vehicles and non-motor vehicles and the road width is greater than 15m, non-motor vehicle lane signals should be installed.
4.3 At intersections where motor vehicle lane signals are set up, when the peak hourly flow of pedestrians passing through the crosswalk exceeds 500 persons, crosswalk signals should be set up.
4.4 Lane signals should be installed at intersections where lane separation control is implemented. Table 1 Traffic flow standard table for signal lights at intersections Main road width (m)
Xiaoyu10
Main road traffic flow (vehicles/h)
High bee hours||tt| |750
800
1200
Approved by the State Bureau of Technical Supervision on 1994-01-29 12h
8000
9000
13000|| tt||Branch road traffic flow (vehicles/h)
Peak hours
350
270
190
12h
3800| |tt||2100
2000
Implemented on 1994-09-01
625
Main road width (m)
greater than 10||tt| |GB 14886--94
Continued Table 1
Main road traffic flow (vehicles/h)
High bee hours
900
1000|| tt||1400
1800
12h
10000
12000
15000
20000
branch road traffic flow ( vehicles/h)
peak hours
390
300
210
150
12h
4100||tt ||2800
2200
1500
Note: ① Traffic flow greater than that in the table is calculated as a passenger car. Other vehicles should be converted into passenger car equivalents. See Appendix A (Supplement) for conversion factors. ②The traffic flow for more than 12 hours is the traffic flow from 7:00 to 19:00. 4.5 On road sections where the distance between intersections is greater than 500m, the peak hour traffic exceeds 750 vehicles, and the 12h traffic exceeds 8,000 vehicles, when the peak hour traffic of pedestrians passing through the crosswalk exceeds 500 people, crosswalk signals and corresponding motor vehicle lane signals can be set up. 5 Installation methods of signal lights
5.1 Types of installation methods of signal lights
5.1.1 Cantilever type (see Figure 1).
Figure 1 Cantilever type installation diagram
5.1.2 column type (see Figure 2)
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5.1.3 door type (see Figure 3).
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GB14886-94
Picture 2 column installation diagram
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Picture 3 Gate type lane change signal light installation diagram 5.1.4 Attached type (see Figure 4).
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5.1.5 Center suspension type (see Figure 5).
5.2 Installation method of motor vehicle lane signal lights
GB14886-
94
Figure 4 attached installation diagram
Figure 5 center-suspended installation diagram|| tt||5.2.1 Motor vehicle lane signal lights should be equipped with main and auxiliary lights. Under normal circumstances, cantilever double-sided installation can be used. 5.2.2 Hangzhou Expressway signal lights are generally installed horizontally. When installed horizontally, the order of light colors from the center line of the road to the curb should be red, yellow, and green. When installed vertically, the order of light colors from top to bottom should be red, yellow, and green. 5.3 Installation method of non-motorized lane signal lights 5.3.1 Non-motorized lane signal lights generally adopt attached installation. Cantilever or column installation can be used when the width of the isolation belt between motor vehicle lanes and non-motor vehicle lanes is greater than 2m.
5.3.2． Non-motorized lane signal lights should be installed vertically. The order of signal light colors from top to bottom should be red, yellow, and green. 5.4 Installation method of crosswalk signal lights
5.4.1 Crosswalk signal lights can be installed with column attachment. 5.4.2 Crosswalk signal lights should be installed vertically. The order of signal light colors is red at the top and green at the bottom. 5.5 Installation method of lane signal lights
5.5.1 Lane signal lights can be installed with arm type or door type. 5.5.2 When using lane signals and motor vehicle lane signals at the same time, the lane signal lights should be installed below the motor vehicle lane signals. Red traffic lights and lane lights used for lane changes should face the controlled lane. The sequence of lane signal lights should be consistent with the actual position sequence of the lane 628
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6 Signal light installation
6.1 Signal light installation location
GB 14886—94
6.1.7 Basic principles for selecting the installation location of signal lights at intersections 6.1.1.1 Signal lights in front of the signal lights There should be no obstructions that affect the signal display within 20° to the left and right of the axis. There should be no trees or other obstructions higher than the lower edge of the signal light that would affect the signal display on the road shoulder 20 meters in front of the signal light. 6.1.1.2 There should be no colored lights, billboards or other objects on the back of the signal light that can easily be confused with the color of the signal light. 6.1.2 Installation location of motor vehicle lane signal lights at intersections 6.1.2.1 When the motor vehicle lane signal lights are cantilevered, the light pole should be set on the right shoulder of the road 0.5m to 2m in front of the intersection stop line. The distance between the light pole and the curb is 0.3m to 2m (see Figure 6). Figure 6 Installation location of signal lights at intersections
6.1.2.2 For intersections with an isolation zone wider than 1m between motor vehicle lanes and non-motor vehicle lanes, the signal light poles should be installed on the isolation zone (see Figure 7).
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Figure 7 Installation location of signal lights at intersections with isolation zones·Legend
Motorized lane lights
Non-motorized lane lights| |tt||Pedestrian crossing signal lights
6.1.2.3 When motor vehicle lane signal lights are installed in a central suspension type, the signal lights should be installed at the center of the intersection. 6.1.3 Installation location of non-motor vehicle road signal lights at intersections 6.1.3.1 When non-motor vehicle road signal lights are attached to motor vehicle road signal light poles, there is no need to choose another installation location. 6.1.3.2 When the motor vehicle lane signal light pole is located on the isolation belt, when the width of the isolation zone is less than 2m, the non-motor vehicle lane signal light can be attached to the motor vehicle lane signal light pole. When the isolation zone width is greater than 2m and less than 4m, motorized traffic lights can be used. The non-motorized lane signal lights should be hung on the lane signal light poles, and the non-motorized lane signal lights should not go over the isolation belt: when the width of the isolation belt is greater than 4m., a separate non-motorized lane signal light pole should be set up. The light pole should be installed on the isolation belt on the left side of the non-motorized lane 0.5m to 2m in front of the stop line at the intersection. 6.1.4 Installation location of crosswalk signal lights at intersections 6.1.4.1 Crosswalk signal light poles should be installed at both ends of the crosswalk on the shoulders of the road at a distance of 0.3m to 2m from the curb. 6.1.4.2. At an intersection with an isolation belt, when the length of the crosswalk exceeds 40m, a crosswalk signal light can be added to the isolation belt. 6.1.5 Installation location of abnormal intersection signal lights. The installation location of abnormal intersection signal lights should be selected according to local conditions with reference to the provisions of Clause 6.1. 6.2 Installation height of signal lights
6.2.1 The vertical distance from the low point of the signal light fixture to the road surface is specified as the installation height of the signal light. 6.2.2 The installation height of motor vehicle lane signal lights is 4.5m to 7m. 6.2.3 The installation height of non-motorized lane signal lights is 2.5m to 3m6.2.4
The installation height of pedestrian crossing signal lights is 2m to 2.5m. 6.3 Cantilever length of the signal light
6.3.1 The distance from the signal light pole to the farthest point of the signal light fixture is specified as the cantilever length of the signal light. 6.3.2 The cantilever length of motor vehicle lane signal lights is 2.5m, 3m, 4m, and 5m. 6.3.3 The cantilever lengths of non-motorized lane signal lights are 1.5m, 2m, 2.5m.3m. 6.4 Installation orientation of signal light fixtures
6.4.1 The installation orientation of motor vehicle lane signal light fixtures should be such that the axis of the yellow signal light points forward and is 50m away from the horizontal distance from the light fixture, and the center point of the motorway controlled by the light fixture is 1.6m above the road surface. at. 6.4.2 The installation orientation of the non-motorized lane signal lamp should be such that the axis of the yellow signal light points forward and is 25m away from the horizontal distance from the lamp, and the center point of the non-motorized lane controlled by the lamp is 1.6m above the road surface. 6.4.3 The installation orientation of crosswalk signal lights should be such that the lights face the crosswalk. 630
6.5 signal light pole
6.5.1 Motorway signal light pole
GB14886--94
6.5.1.1 Motorway signal light pole, steel tube lights can be used Pole or reinforced concrete light pole. 6.5.1.2 Steel pipe light poles can generally use steel pipes with an outer diameter of 121mm to $160mm, a wall thickness of 4.5mm to 6mm, and a length of 6m. A 400mm x 800mm terminal can be left in the row of holes at a distance of 1m to 1.4m from the ground. A waterproof eaves should be welded above the hole. A 3mm thick steel plate can be used as the cover plate and fixed on the rod body with screws. There should be an outlet hole of about $30mm where the lamp is installed. The outlet hole should be equipped with a rubber expansion sleeve, and a cable return bend hook should be welded below the outlet hole. A plastic or cast iron waterproof pipe cap should be installed on the top of the light pole. The fixed flange should be welded to the bottom of the light pole. The flange can use steel plates with a diameter of $400mm and a thickness of 10mm. Six right-angled triangle stiffeners should be welded evenly between the flange and the rod body.
6.5.1.3 Reinforced concrete light poles shall comply with the regulations of GB396. Generally, light poles with a length of 8m or 10m can be used. When laying cables underground, there should be a cable inlet hole of about $60mm 30cm below the ground of the reinforced concrete light pole. There should be an outlet hole of about 50mm where the lamp is installed on the ground. There should be cables in the cable inlet and outlet holes. Protective sleeve. 6.5.2 Non-motorized lane signal light poles may use 4m long steel pipes, and shall be implemented with reference to the relevant provisions of Article 6.5.1.2. 6.5.3 Crosswalk signal light poles can be made of water and gas transportation steel pipes with a nominal diameter of 80mm and a length of 2m. The fixed flange should be welded to the bottom of the light pole. The flange can use steel plates with a diameter of $300mm and a thickness of 10mm. Six right-angled triangle stiffeners should be welded evenly between the flange and the rod body.
6.5.4 Color of signal light polesbzxZ.net
Signal light poles (except galvanized steel pipe light poles) located less than 1.2m from the ground should be painted with a 20cm wide red and white paint color ring. The color of the color circle should comply with the regulations of GB2893. Above 1.2m from the ground, galvanized steel pipes and reinforced concrete light poles are not painted, while steel pipe light poles should be painted with gray paint.
6.5.5 Installation of signal light poles
6.5.5.1 Steel tube light poles should use ground-anchored concrete foundations. The concrete foundation volume of motor vehicle lane signal light poles is generally 100cm×100cm×100cm. Anchor bolts can be made of round steel with a length of 1250mm and a diameter of g20mm. The upper end is a 50mm long, M20mm thread, and the lower end is a 20cm long, bent angle of less than 60°. The anchor bolts are welded to the lower flange, exposing 50mm long threads. The concrete foundation volume of the crosswalk signal light pole is generally 50cm×50cm×50cm. M16mm anchor bolts with a length of 300mm to 500mm that comply with GB799 regulations can be used. The anchor bolts are welded to the lower flange, exposing 40mm threads. The inner diameter of the embedded wiring pipe should be greater than 50mm, and the bending angle should be greater than 120 degrees (see Figure 8). 631
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Figure 8 Basic diagram of steel pipe signal light pole||tt| |Lamp pole
Ground anchor
Concrete shelter
Protective ground wire
6.5.5.2 When using steel pipe signal light poles, protective ground wires should be installed. The protective ground wire can be made of galvanized flat steel with a specification of 40mm×4mm. The protective ground wire can be laid along the trench and welded to the anchor bolts of each steel tube light pole. The welding joint should be painted with asphalt oil to prevent corrosion. The grounding resistance of the protective ground wire should be less than 10Q.
6.5.5.3 Reinforced concrete light poles are generally installed directly buried. The depth buried underground should be greater than 1.8m. 6.5.5.4 When installing the signal light pole, ensure that the pole body is vertical. The inclination shall not exceed 1% of the pole length. 6.6 Cantilevers, support arms, tie rods and fixings 6.6.1 Cantilevers and support arms can be made of water and gas transportation steel pipes with a nominal diameter of 70mm. The cantilever length should be selected according to the road width. The connecting end of the cantilever and the light pole can be welded with fixed angle steel. There can be a 25mm×50mm oblong cable entry hole and two 25mm circular cable outlet holes under the cantilever.
6.6.2 The tie rod can be made of round steel with an outer diameter of $16mm. One end of the pull rod can be equipped with an adjustable distance turnbuckle. 6.6.3 When the cantilever length is no more than 3m, the lower support arm or the upper tie rod can be used alone. When the cantilever length is greater than 3m, both the lower support arm and the upper tie rod should be used. The angle between the lower support arm and the cantilever is 30° to 40°. The angle between the upper tie rod and the cantilever is 20° to 30°. 6.6.4 The cantilever and support arm can be connected and fixed with the light pole using hoops and hoop seats. The tie rod and light pole, tie rod and cantilever, support arm and cantilever can be connected and fixed using splints. The fixing bolts, nuts, and washers used during installation should be galvanized and tightened with spring washers (see Figures 9 to 10). 632
Hoop
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GB 14886—94
Lamp pole
Hoop seat
Figure 9 Cross arm installation diagram| | tt | tt||6.6.5 The outer walls of the cantilever and support arms should be painted with gray paint or galvanizing the same color as the light pole. Tie rods, hoop seats, and plywood should be galvanized or painted with gray paint that is the same color as the light pole.
6.7 Cable laying
6.7.1 Selection of cables
6.7.1.1 Cables should use copper core, plastic insulation, with a core area of ??not less than 1.2mm. Plastic sheathed cable. Each cable can have 1 to 4 spare core wires.
6.7.1.2 Both ends of the same cable should be covered with identification sleeves with the same number. When the plastic insulation layer of the core wires is the same color, the two ends of each core wire should be covered with identification sleeves with the same number.
6.7.2 Laying of underground cables
6.7.2.1 Generally, the cables used for signal lights are laid underground. Cables laid underground must not have joints. There should be a margin of 2m to 4m for each cable.
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3. The cantilever lengths of non-motorized lane signal lights are 1.5m, 2m, 2.5m.3m. 6.4 Installation orientation of signal light fixtures
6.4.1 The installation orientation of signal light fixtures on motor vehicle lanes should be such that the axis of the yellow signal light points forward and is 50m away from the horizontal distance from the light fixtures, and the center point of the motor vehicle lane controlled by the light fixtures is 1.6m above the road surface. at. 6.4.2 The installation orientation of the non-motorized lane signal lamp should be such that the axis of the yellow signal light points forward and is 25m away from the horizontal distance from the lamp, and the center point of the non-motorized lane controlled by the lamp is 1.6m above the road surface. 6.4.3 Crosswalk signal lights should be installed in such a way that the lights face the crosswalk. 630
6.5 signal light pole
6.5.1 Motorway signal light pole
GB14886--94
6.5.1.1 Motorway signal light pole, steel tube lights can be used Pole or reinforced concrete light pole. 6.5.1.2 Steel pipe light poles can generally use steel pipes with an outer diameter of 121mm to $160mm, a wall thickness of 4.5mm to 6mm, and a length of 6m. A 400mm x 800mm terminal can be left in the row of holes at a distance of 1m to 1.4m from the ground. A waterproof eaves should be welded above the hole. A 3mm thick steel plate can be used as the cover plate and fixed on the rod body with screws. There should be an outlet hole of about $30mm where the lamp is installed. The outlet hole should be equipped with a rubber expansion sleeve, and a cable return bend hook should be welded below the outlet hole. A plastic or cast iron waterproof pipe cap should be installed on the top of the light pole. The fixed flange should be welded to the bottom of the light pole. The flange can use steel plates with a diameter of $400mm and a thickness of 10mm. Six right-angled triangle reinforcements should be welded evenly between the flange and the rod body.
6.5.1.3 Reinforced concrete light poles shall comply with the regulations of GB396. Generally, light poles with a length of 8m or 10m can be used. When laying cables underground, there should be a cable inlet hole of about $60mm 30cm below the ground of the reinforced concrete light pole. There should be a cable outlet hole of about 50mm where the lamps are installed on the ground. There should be cables in the cable inlet and outlet holes. Protective sleeve. 6.5.2 Non-motorized lane signal light poles may use 4m long steel pipes, and shall be implemented with reference to the relevant provisions of Article 6.5.1.2. 6.5.3 Crosswalk signal light poles can be made of water and gas transportation steel pipes with a nominal diameter of 80mm and a length of 2m. The fixed flange should be welded to the bottom of the light pole. The flange can use steel plates with a diameter of $300mm and a thickness of 10mm. Six right-angled triangle reinforcements should be welded evenly between the flange and the rod body.
6.5.4 Color of signal light poles
Signal light poles (except galvanized steel pipe light poles) located less than 1.2m from the ground should be painted with a 20cm wide red and white paint color ring. The color of the color circle should comply with the regulations of GB2893. Above 1.2m from the ground, galvanized steel pipes and reinforced concrete light poles are not painted, and steel pipe light poles should be painted with gray paint.
6.5.5 Installation of signal light poles
6.5.5.1 Steel tube light poles should use ground-anchored concrete foundations. The concrete foundation volume of motor vehicle lane signal light poles is generally 100cm×100cm×100cm. Anchor bolts can be made of round steel with a length of 1250mm and a diameter of g20mm. The upper end is a 50mm long, M20mm thread, and the lower end is a 20cm long, bent angle of less than 60°. The anchor bolts are welded to the lower flange, exposing 50mm long threads. The concrete foundation volume of the crosswalk signal light pole is generally 50cm×50cm×50cm. M16mm anchor bolts with a length of 300mm to 500mm that comply with GB799 regulations can be used. The anchor bolts are welded to the lower flange, exposing 40mm threads. The inner diameter of the embedded wiring pipe should be greater than 50mm, and the bending angle should be greater than 120 degrees (see Figure 8). 631
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Figure 8 Basic diagram of steel pipe signal light pole||tt| |Lamp pole
Ground anchor
Concrete shelter
Protective ground wire
6.5.5.2 When using steel pipe signal light poles, protective ground wires should be installed. The protective ground wire can be made of galvanized flat steel with a specification of 40mm×4mm. The protective ground wire can be laid along the trench and welded to the anchor bolts of each steel tube light pole. The welding joint should be painted with asphalt oil to prevent corrosion. The grounding resistance of the protective ground wire should be less than 10Q.
6.5.5.3 Reinforced concrete light poles are generally installed directly buried. The depth buried underground should be greater than 1.8m. 6.5.5.4 When installing the signal light pole, ensure that the pole body is vertical. The inclination shall not exceed 1% of the pole length. 6.6 Cantilevers, support arms, tie rods and fixings 6.6.1 Cantilevers and support arms can be made of water and gas transportation steel pipes with a nominal diameter of 70mm. The cantilever length should be selected according to the road width. The connecting end of the cantilever and the light pole can be welded with fixed angle steel. There can be a 25mm×50mm oblong cable entry hole and two 25mm circular cable outlet holes under the cantilever.
6.6.2 The tie rod can be made of round steel with an outer diameter of $16mm. One end of the pull rod can be equipped with an adjustable distance turnbuckle. 6.6.3 When the cantilever length is no more than 3m, the lower support arm or the upper tie rod can be used alone. When the cantilever length is greater than 3m, both the lower support arm and the upper tie rod should be used. The angle between the lower support arm and the cantilever is 30° to 40°. The angle between the upper tie rod and the cantilever is 20° to 30°. 6.6.4 Cantilevers and support arms can be connected and fixed with the light pole using hoops and hoop seats. The tie rod and the light pole, the tie rod and the cantilever, and the support arm and the cantilever can be connected and fixed using splints. The fixing bolts, nuts, and washers used during installation should be galvanized and tightened with spring washers (see Figures 9 to 10). 632
Hoop
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GB 14886—94
Lamp pole
Hoop seat
Figure 9 Cross arm installation diagram| | tt | tt||6.6.5 The outer walls of the cantilever and support arms should be painted with gray paint or galvanizing the same color as the light pole. Tie rods, hoop seats, and plywood should be galvanized or painted with gray paint that is the same color as the light pole.
6.7 Cable laying
6.7.1 Selection of cables
6.7.1.1 Cables should use copper core, plastic insulation, with a core area of ??not less than 1.2mm. Plastic sheathed cable. Each cable can have 1 to 4 spare core wires.
6.7.1.2 Both ends of the same cable should be covered with identification sleeves with the same number. When the plastic insulation layer of the core wires is the same color, the two ends of each core wire should be covered with identification sleeves with the same number.
6.7.2 Laying of underground cables
6.7.2.1 Generally, the cables used for signal lights are laid underground. Cables laid underground must not have joints. There should be a margin of 2m to 4m for each cable.
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3. The cantilever lengths of non-motorized lane signal lights are 1.5m, 2m, 2.5m.3m. 6.4 Installation orientation of signal light fixtures
6.4.1 The installation orientation of signal light fixtures on motor vehicle lanes should be such that the axis of the yellow signal light points forward and is 50m away from the horizontal distance from the light fixtures, and the center point of the motor vehicle lane controlled by the light fixtures is 1.6m above the road surface. at. 6.4.2 The installation orientation of the non-motorized lane signal lamp should be such that the axis of the yellow signal light points forward and is 25m away from the horizontal distance from the lamp, and the center point of the non-motorized lane controlled by the lamp is 1.6m above the road surface. 6.4.3 Crosswalk signal lights should be installed in such a way that the lights face the crosswalk. 630
6.5 signal light pole
6.5.1 Motorway signal light pole
GB14886--94
6.5.1.1 Motorway signal light pole, steel tube lights can be used Pole or reinforced concrete light pole. 6.5.1.2 Steel pipe light poles can generally use steel pipes with an outer diameter of 121mm to $160mm, a wall thickness of 4.5mm to 6mm, and a length of 6m. A 400mm x 800mm terminal can be left in the row of holes at a distance of 1m to 1.4m from the ground. A waterproof eaves should be welded above the hole. A 3mm thick steel plate can be used as the cover plate and fixed on the rod body with screws. There should be an outlet hole of about $30mm where the lamp is installed. The outlet hole should be equipped with a rubber expansion sleeve, and a cable return bend hook should be welded below the outlet hole. A plastic or cast iron waterproof pipe cap should be installed on the top of the light pole. The fixed flange should be welded to the bottom of the light pole. The flange can use steel plates with a diameter of $400mm and a thickness of 10mm. Six right-angled triangle reinforcements should be welded evenly between the flange and the rod body.
6.5.1.3 Reinforced concrete light poles shall comply with the regulations of GB396. Generally, light poles with a length of 8m or 10m can be used. When laying cables underground, there should be a cable inlet hole of about $60mm 30cm below the ground of the reinforced concrete light pole. There should be a cable outlet hole of about 50mm where the lamps are installed on the ground. There should be cables in the cable inlet and outlet holes. Protective sleeve. 6.5.2 Non-motorized lane signal light poles may use 4m long steel pipes, and shall be implemented with reference to the relevant provisions of Article 6.5.1.2. 6.5.3 Crosswalk signal light poles can be made of water and gas transportation steel pipes with a nominal diameter of 80mm and a length of 2m. The fixed flange should be welded to the bottom of the light pole. The flange can use steel plates with a diameter of $300mm and a thickness of 10mm. Six right-angled triangle reinforcements should be welded evenly between the flange and the rod body.
6.5.4 Color of signal light poles
Signal light poles (except galvanized steel pipe light poles) located less than 1.2m from the ground should be painted with a 20cm wide red and white paint color ring. The color of the color circle should comply with the regulations of GB2893. Above 1.2m from the ground, galvanized steel pipes and reinforced concrete light poles are not painted, and steel pipe light poles should be painted with gray paint.
6.5.5 Installation of signal light poles
6.5.5.1 Steel tube light poles should use ground-anchored concrete foundations. The concrete foundation volume of motor vehicle lane signal light poles is generally 100cm×100cm×100cm. Anchor bolts can be made of round steel with a length of 1250mm and a diameter of g20mm. The upper end is a 50mm long, M20mm thread, and the lower end is a 20cm long, bent angle of less than 60°. The anchor bolts are welded to the lower flange, exposing 50mm long threads. The concrete foundation volume of the crosswalk signal light pole is generally 50cm×50cm×50cm. M16mm anchor bolts with a length of 300mm to 500mm that comply with GB799 regulations can be used. The anchor bolts are welded to the lower flange, exposing 40mm threads. The inner diameter of the embedded wiring pipe should be greater than 50mm, and the bending angle should be greater than 120 degrees (see Figure 8). 631
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Figure 8 Basic diagram of steel pipe signal light pole||tt| |Lamp pole
Ground anchor
Concrete shelter
Protective ground wire
6.5.5.2 When using steel pipe signal light poles, protective ground wires should be installed. The protective ground wire can be made of galvanized flat steel with a specification of 40mm×4mm. The protective ground wire can be laid along the trench and welded to the anchor bolts of each steel tube light pole. The welding joint should be painted with asphalt oil to prevent corrosion. The grounding resistance of the protective ground wire should be less than 10Q.
6.5.5.3 Reinforced concrete light poles are generally installed directly buried. The depth buried underground should be greater than 1.8m. 6.5.5.4 When installing the signal light pole, ensure that the pole body is vertical. The inclination shall not exceed 1% of the pole length. 6.6 Cantilevers, support arms, tie rods and fixings 6.6.1 Cantilevers and support arms can be made of water and gas transportation steel pipes with a nominal diameter of 70mm. The cantilever length should be selected according to the road width. The connecting end of the cantilever and the light pole can be welded with fixed angle steel. There can be a 25mm×50mm oblong cable entry hole and two 25mm circular cable outlet holes under the cantilever.
6.6.2 The tie rod can be made of round steel with an outer diameter of $16mm. One end of the pull rod can be equipped with an adjustable distance turnbuckle. 6.6.3 When the cantilever length is no more than 3m, the lower support arm or the upper tie rod can be used alone. When the cantilever length is greater than 3m, both the lower support arm and the upper tie rod should be used. The angle between the lower support arm and the cantilever is 30° to 40°. The angle between the upper tie rod and the cantilever is 20° to 30°. 6.6.4 Cantilevers and support arms can be connected and fixed with the light pole using hoops and hoop seats. The tie rod and the light pole, the tie rod and the cantilever, and the support arm and the cantilever can be connected and fixed using splints. The fixing bolts, nuts, and washers used during installation should be galvanized and tightened with spring washers (see Figures 9 to 10). 632
Hoop
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GB 14886—94
Lamp pole
Hoop seat
Figure 9 Cross arm installation diagram| | tt | tt||6.6.5 The outer walls of the cantilever and support arms should be painted with gray paint or galvanizing the same color as the light pole. Tie rods, hoop seats, and plywood should be galvanized or painted with gray paint that is the same color as the light pole.
6.7 Cable laying
6.7.1 Selection of cables
6.7.1.1 Cables should use copper core, plastic insulation, with a core area of ??not less than 1.2mm. Plastic sheathed cable. Each cable can have 1 to 4 spare core wires.
6.7.1.2 Both ends of the same cable should be covered with identification sleeves with the same number. When the plastic insulation layer of the core wires is the same color, both ends of each core wire should be covered with identification sleeves with the same number.
6.7.2 Laying of underground cables
6.7.2.1 Generally, the cables used for signal lights are laid underground. Cables laid underground shall not have joints. There should be a margin of 2m to 4m for each cable.
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3. Reinforced concrete light poles should comply with the regulations of GB396. Generally, light poles with a length of 8m or 10m can be used. When laying cables underground, there should be a cable inlet hole of about $60mm 30cm below the ground of the reinforced concrete light pole. There should be a cable outlet hole of about 50mm where the lamps are installed on the ground. There should be cables in the cable inlet and outlet holes. Protective sleeve. 6.5.2 Non-motorized lane signal light poles may use 4m long steel pipes, and shall be implemented with reference to the relevant provisions of Article 6.5.1.2. 6.5.3 Crosswalk signal light poles can be made of water and gas transportation steel pipes with a nominal diameter of 80mm and a length of 2m. The fixed flange should be welded to the bottom of the light pole. The flange can use steel plates with a diameter of $300mm and a thickness of 10mm. Six right-angled triangle reinforcements should be welded evenly between the flange and the rod body.
6.5.4 Color of signal light poles
Signal light poles (except galvanized steel pipe light poles) located less than 1.2m from the ground should be painted with a 20cm wide red and white paint color ring. The color of the color circle should comply with the regulations of GB2893. Above 1.2m from the ground, galvanized steel pipes and reinforced concrete light poles are not painted, and steel pipe light poles should be painted with gray paint.
6.5.5 Installation of signal light poles
6.5.5.1 Steel tube light poles should use ground-anchored concrete foundations. The concrete foundation volume of motor vehicle lane signal light poles is generally 100cm×100cm×100cm. Anchor bolts can be made of round steel with a length of 1250mm and a diameter of g20mm. The upper end is a 50mm long, M20mm thread, and the lower end is a 20cm long, bent angle of less than 60°. The anchor bolts are welded to the lower flange, exposing 50mm long threads. The concrete foundation volume of the crosswalk signal light pole is generally 50cm×50cm×50cm. M16mm anchor bolts with a length of 300mm to 500mm that comply with GB799 regulations can be used. The anchor bolts are welded to the lower flange, exposing 40mm threads. The inner diameter of the embedded wiring pipe should be greater than 50mm, and the bending angle should be greater than 120 degrees (see Figure 8). 631
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GB14886—94
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Figure 8 Basic diagram of steel pipe signal light pole||tt| |Lamp pole
Ground anchor
Concrete shelter
Protective ground wire
6.5.5.2 When using steel pipe signal light poles, protective ground wires should be installed. The protective ground wire can be made of galvanized flat steel with a specification of 40mm×4mm. The protective ground wire can be laid along the trench and welded to the anchor bolts of each steel tube light pole. The welding joint should be painted with asphalt oil to prevent corrosion. The grounding resistance of the protective ground wire should be less than 10Q.
6.5.5.3 Reinforced concrete light poles are generally installed directly buried. The depth buried underground should be greater than 1.8m. 6.5.5.4 When installing the signal light pole, ensure that the pole body is vertical. The inclination shall not exceed 1% of the pole length. 6.6 Cantilevers, support arms, tie rods and fixings 6.6.1 Cantilevers and support arms can be made from water and gas transportation steel pipes with a nominal diameter of 70mm. The cantilever length should be selected according to the road width. The connecting end of the cantilever and the light pole can be welded with fixed angle steel. There can be a 25mm×50mm oblong cable entry hole and two 25mm circular cable outlet holes under the cantilever.
6.6.2 The tie rod can be made of round steel with an outer diameter of $16mm. One end of the pull rod can be equipped with an adjustable distance turnbuckle. 6.6.3 When the cantilever length is no more than 3m, the lower support arm or the upper tie rod can be used alone. When the cantilever length is greater than 3m, both the lower support arm and the upper tie rod should be used. The angle between the lower support arm and the cantilever is 30° to 40°. The angle between the upper tie rod and the cantilever is 20° to 30°. 6.6.4 Cantilevers and support arms can be connected and fixed with the light pole using hoops and hoop seats. The tie rod and light pole, tie rod and cantilever, support arm and cantilever can be connected and fixed using splints. The fixing bolts, nuts, and washers used during installation should be galvanized and tightened with spring washers (see Figures 9 to 10). 632
Hoop
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GB 14886—94
Lamp pole
Hoop seat
Figure 9 Cross arm installation diagram| | tt | tt||6.6.5 The outer walls of the cantilever and support arms should be painted with gray paint or galvanizing the same color as the light pole. Tie rods, hoop seats, and plywood should be galvanized or painted with gray paint that is the same color as the light pole.
6.7 Cable laying
6.7.1 Selection of cables
6.7.1.1 Cables should use copper core, plastic insulation, with a core area of ??not less than 1.2mm. Plastic sheathed cable. Each cable can have 1 to 4 spare core wires.
6.7.1.2 Both ends of the same cable should be covered with identification sleeves with the same number. When the plastic insulation layer of the core wires is the same color, the two ends of each core wire should be covered with identification sleeves with the same number.
6.7.2 Laying of underground cables
6.7.2.1 Generally, the cables used for signal lights are laid underground. Cables laid underground must not have joints. There should be a margin of 2m to 4m for each cable.
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3. Reinforced concrete light poles should comply with the regulations of GB396. Generally, light poles with a length of 8m or 10m can be used. When laying cables underground, there should be a cable inlet hole of about $60mm 30cm below the ground of the reinforced concrete light pole. There should be a cable outlet hole of about 50mm where the lamps are installed on the ground. There should be cables in the cable inlet and outlet holes. Protective sleeve. 6.5.2 Non-motorized lane signal light poles may use 4m long steel pipes, and shall be implemented with reference to the relevant provisions of Article 6.5.1.2. 6.5.3 Crosswalk signal light poles can be made of water and gas transportation steel pipes with a nominal diameter of 80mm and a length of 2m. The fixed flange should be welded to the bottom of the light pole. The flange can use steel plates with a diameter of $300mm and a thickness of 10mm. Six right-angled triangle stiffeners should be welded evenly between the flange and the rod body.
6.5.4 Color of signal light poles
Signal light poles (except galvanized steel pipe light poles) located less than 1.2m from the ground should be painted with a 20cm wide red and white paint color ring. The color of the color circle should comply with the regulations of GB2893. Above 1.2m from the ground, galvanized steel pipes and reinforced concrete light poles are not painted, while steel pipe light poles should be painted with gray paint.
6.5.5 Installation of signal light poles
6.5.5.1 Steel tube light poles should use ground-anchored concrete foundations. The concrete foundation volume of motor vehicle lane signal light poles is generally 100cm×100cm×100cm. Anchor bolts can be made of round steel with a length of 1250mm and a diameter of g20mm. The upper end is a 50mm long, M20mm thread, and the lower end is a 20cm long, bent angle of less than 60°. The anchor bolts are welded to the lower flange, exposing 50mm long threads. The concrete foundation volume of the crosswalk signal light pole is generally 50cm×50cm×50cm. M16mm anchor bolts with a length of 300mm to 500mm that comply with GB799 regulations can be used. The anchor bolts are welded to the lower flange, exposing 40mm threads. The inner diameter of the embedded wiring pipe should be greater than 50mm, and the bending angle should be greater than 120 degrees (see Figure 8). 631
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GB14886—94
0
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Figure 8 Basic diagram of steel pipe signal light pole||tt| |Lamp pole
Ground anchor
Concrete shelter
Protective ground wire
6.5.5.2 When using steel pipe signal light poles, protective ground wires should be installed. The protective ground wire can be made of galvanized flat steel with a specification of 40mm×4mm. The protective ground wire can be laid along the trench and welded to the anchor bolts of each steel tube light pole. The welding joint should be painted with asphalt oil to prevent corrosion. The grounding resistance of the protective ground wire should be less than 10Q.
6.5.5.3 Reinforced concrete light poles are generally installed directly buried. The depth buried underground should be greater than 1.8m. 6.5.5.4 When installing the signal light pole, ensure that the pole body is vertical. The inclination shall not exceed 1% of the pole length. 6.6 Cantilevers, support arms, tie rods and fixings 6.6.1 Cantilevers and support arms can be made from water and gas transportation steel pipes with a nominal diameter of 70mm. The cantilever length should be selected according to the road width. The connecting end of the cantilever and the light pole can be welded with fixed angle steel. There can be a 25mm×50mm oblong cable entry hole and two 25mm circular cable outlet holes under the cantilever.
6.6.2 The tie rod can be made of round steel with an outer diameter of $16mm. One end of the pull rod can be equipped with an adjustable distance turnbuckle. 6.6.3 When the cantilever length is no more than 3m, the lower support arm or the upper tie rod can be used alone. When the cantilever length is greater than 3m, both the lower support arm and the upper tie rod should be used. The angle between the lower support arm and the cantilever is 30° to 40°. The angle between the upper tie rod and the cantilever is 20° to 30°. 6.6.4 The cantilever and support arm can be connected and fixed with the light pole using hoops and hoop seats. The tie rod and light pole, tie rod and cantilever, support arm and cantilever can be connected and fixed using splints. The fixing bolts, nuts, and washers used during installation should be galvanized and tightened with spring washers (see Figures 9 to 10). 632
Hoop
二
GB 14886—94
Lamp pole
Hoop seat
Figure 9 Cross arm installation diagram| | tt | tt||6.6.5 The outer walls of the cantilever and support arms should be painted with gray paint or galvanizing the same color as the light pole. Tie rods, hoop seats, and plywood should be galvanized or painted with gray paint that is the same color as the light pole.
6.7 Cable laying
6.7.1 Selection of cables
6.7.1.1 Cables should use copper core, plastic insulation, with a core area of ??not less than 1.2mm. Plastic sheathed cable. Each cable can have 1 to 4 spare core wires.
6.7.1.2 Both ends of the same cable should be covered with identification sleeves with the same number. When the plastic insulation layer of the core wires is the same color, both ends of each core wire should be covered with identification sleeves with the same number.
6.7.2 Laying of underground cables
6.7.2.1 Generally, the cables used for signal lights are laid underground. Cables laid underground must not have joints. There should be a margin of 2m to 4m for each cable.
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3. When the cantilever length is no more than 3m, the lower support arm or upper tie rod can be used alone. When the cantilever length is greater than 3m, both the lower support arm and the upper tie rod should be used. The angle between the lower support arm and the cantilever is 30° to 40°. The angle between the upper tie rod and the cantilever is 20° to 30°. 6.6.4 Cantilevers and support arms can be connected and fixed with the light pole using hoops and hoop seats. The tie rod and the light pole, the tie rod and the cantilever, and the support arm and the cantilever can be connected and fixed using splints. The fixing bolts, nuts, and washers used during installation should be galvanized and tightened with spring washers (see Figures 9 to 10). 632
Hoop
二
GB 14886—94
Lamp pole
Hoop seat
Figure 9 Cross arm installation diagram| | tt | tt||6.6.5 The outer walls of the cantilever and support arms should be painted with gray paint or galvanizing the same color as the light pole. Tie rods, hoop seats, and plywood should be galvanized or painted with gray paint that is the same color as the light pole.
6.7 Cable laying
6.7.1 Selection of cables
6.7.1.1 Cables should use copper core, plastic insulation, with a core area of ??not less than 1.2mm. Plastic sheathed cable. Each cable can have 1 to 4 spare core wires.
6.7.1.2 Both ends of the same cable should be covered with identification sleeves with the same number. When the plastic insulation layer of the core wires is the same color, the two ends of each core wire should be covered with identification sleeves with the same number.
6.7.2 Laying of underground cables
6.7.2.1 Generally, the cables used for signal lights are laid underground. Cables laid underground must not have joints. There should be a margin of 2m to 4m for each cable.
633
3. When the cantilever length is no more than 3m, the lower support arm or upper tie rod can be used alone. When the cantilever length is greater than 3m, both the lower support arm and the upper tie rod should be used. The angle between the lower support arm and the cantilever is 30° to 40°. The angle between the upper tie rod and the cantilever is 20° to 30°. 6.6.4 The cantilever and support arm can be connected and fixed with the light pole using hoops and hoop seats. The tie rod and the light pole, the tie rod and the cantilever, and the support arm and the cantilever can be connected and fixed using splints. The fixing bolts, nuts, and washers used during installation should be galvanized and tightened with spring washers (see Figures 9 to 10). 632
Hoop
二
GB 14886—94
Lamp pole
Hoop seat
Figure 9 Cross arm installation diagram| | tt | tt||6.6.5 The outer walls of the cantilever and support arms should be painted with gray paint or galvanizing the same color as the light pole. Tie rods, hoop seats, and plywood should be galvanized or painted with gray paint that is the same color as the light pole.
6.7 Cable laying
6.7.1 Selection of cables
6.7.1.1 Cables should use copper core, plastic insulation, with a core area of ??not less than 1.2mm. Plastic sheathed cable. Each cable can have 1 to 4 spare core wires.
6.7.1.2 Both ends of the same cable should be covered with identification sleeves with the same number. When the plastic insulation layer of the core wires is the same color, the two ends of each core wire should be covered with identification sleeves with the same number.
6.7.2 Laying of underground cables
6.7.2.1 Generally, the cables used for signal lights are laid underground. Cables laid underground must not have joints. There should be a margin of 2m to 4m for each cable.
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