How much is the traffic signal lights lamp installation considerations

Appropriate earth-anchored concrete type. Anchor bolt the upper as the thread, the bottom Angle is less than 60 bending or other similar structure, the anchor bolt should be welded in the flange plate. Embedded threading pipe diameter should be greater than 50 mm, bending Angle should be greater than 120



appropriate earth-anchored concrete type. Anchor bolt the upper as the thread, the bottom Angle is less than 60 & deg; Bending or other similar structure, the anchor bolt should be welded in the flange plate. Embedded threading pipe diameter should be greater than & Phi; 50 mm, bending Angle should be greater than 120 & deg; , signal light pole protection grounding resistance should be less than 10 Ω.

light light pole when installation should guarantee the vertical rod body, slope shall not exceed & plusmn; 0. 5%. 9. 2 bracket, bracket, and fixed cantilever bar bar with the support bar can be used more than round or prismatic variable cross-section profiles production, appropriate welding flange fixed cantilever connected to the light pole end, cantilever under the bore into the line and outlet shall be maintained.

appropriate use of round steel bar production, one end is equipped with adjustable screw of the distance, diameter and length according to cantilever length, etc.

bracket can be used to embrace hoop, hoop seat connected to the light pole is fixed. Rod and light pole, pull rod and bracket, bracket and the bracket can use plywood fixed connection. Installed with a fixed bolt, nut, washer should use hot dip galvanized parts and spring gasket pressure.

cable laying:

1. Each group of signal should be separate use a cable connected to the signal. Cable selection should be used on the nominal area of not less than zero. 75 was the copper, plastic insulation, plastic sheath or special rubber insulation, sheath cable. Power cable can have 1 to 4 shares each spare conductor.

the same root on both ends of the cable shall have the same identity. Should adopt corresponding core insulation color easy to with light color in order to install and maintain. If the conductor insulation layer with color, the ends of the conductor shall have the same logo per share, appropriate USES digital serial number identification.

　　2. Underground cable laying, appropriate USES light cable laying underground, each cable should be more small solar energy street light. Underground cable laying it is forbidden to have joint. Underground cable threading pipe nominal diameter should be used 50 & ndash; Within 100 mm corrosion liner of the hot dip galvanized steel or hard plastic tube, usually steel pipe used for roadway, hard plastic pipe used in the pavement. Threading pipe should use joint casing is fixed, and should have a sufficient strength of the concrete protective layer. When using the rigid plastic pipe, hard plastic tube around the appropriate package has enough strength of concrete protective layer. Each root canal orifice must be strictly deal with burr. Embedment depth of the underground cable threading tube to the top of the distance of the road, not less than 1000 px. Underground cable threading pipe bend or length of more than 50 m should be set when the hand well, hand hole covers due traffic facilities special tag. Hand well depth in 60 ~ 2000 px, ooze water shall be available at the bottom of the hole. Well the apertures should be higher than hand bottom hole 500 px, leaned out wall is not more than 125 px, apertures should block, prevent the rain and sediment flow into the pipe or mouse into the damaged cable. Cable should be set in the well stay. Underground cables should be avoided and communications, detector and other cables use the same pipe.

　　3 . Aerial cable laying: can't using underground cable laying mode, the overhead cable laying method. Aerial cable overhead clearance shall be not less than 6 m. Aerial cable should be used steel strand cable hoist. Overhead cables in the signal tractor source 2. Should be used under 5 m steel threading pipe, threading pipe should be at the top of the inverted U type backwater bending or install waterproof outlet tube cap.

the design and construction qualification: