How to lay JDG pipelines 20

JDG tubes. The road laying process is as follows:

1. Concealed pipe laying process: bending, box, box prefabrication, positioning, slotting hole, claw threaded pipe joint and box, box fastening, box directional transfer, pipeline laying, crimping grounding, pipeline fixing.

2. Open pipe laying process: bend, box, box prefabrication, positioning, claw threaded pipe joint and box, box fastening, box bracket fixing, pipeline laying, crimping grounding, pipeline fixing.

3. Pipeline laying process in the ceiling: bending, box, box prefabrication, positioning, claw threaded pipe joint and box, box fastening, box bracket fixing, pipeline laying, crimping grounding, pipeline fixing.

JDG pipe] is a kind of latest type conduit for the protection of electrical circuits, which is the latest type of conduit for the protection of electrical circuits. The connecting sleeve and its metal accessories are wires and pipes composed of screw tightening connection technology, without cross-grounding, welding and threading, and the appearance is silvery-white or yellow. JDG pipe is a replacement for PVC pipe.

and SC pipes and other types of traditional wire conduit replacement products, is a breakthrough innovation in the field of building electrical using new materials and technologies. JDG pipes are made of galvanized steel.

The crossover grounding wire with thin-walled steel pipe overcomes the shortcomings of complex construction and large construction loss of ordinary metal conduit, and also solves the problems of poor fire resistance and grounding difficulty of PVC pipe. Because the cost of JDG pipes has increased compared with ordinary pipes, they are mostly used for integrated wiring in construction.

Fire wiring and other construction.

Summary. No JDG conduit is required, no jumper is required. According to the CECS120:

2000 Socket Tight Static Steel Conduit Wire Pipeline Construction and Acceptance" stipulates: When the wire pipeline composed of the set steel conduit and its metal accessories is sleeved, when the pipe and pipe, pipe and box link comply with the provisions of Chapter IV of this regulation, the connection can not be provided with a jumper grounding wire. The tubing housing should have reliable grounding.

The sleeve tight steel conduit pipeline and the grounding wire should not be welded together. Sleeve tight steel conduit pipeline, should not be used as electrical equipment grounding wire.

The specification of JDG pipe requires the use of JDG line pipe for embedded construction, do I need to do jumper wires?

No JDG conduit is required, no jumper is required. According to the provisions of "CECS120:2000 Socketed Clamping Steel Conduit Wire Pipeline Construction and Acceptance".

For the wire pipeline composed of the sleeve slip pin reed tightened steel conduit and its metal accessories, when the connection between the pipe and the pipe and the pipe and the box meets the provisions of the fourth chapter of the regulations, the connection can not be provided with a jumper bucket type ground wire. The tubing housing should have reliable grounding. The sleeve tight steel conduit pipeline and the grounding wire should not be welded together.

The sleeve is tightly connected to the conduit pipeline of the steel signal belt, and should not be used as the grounding wire of electrical equipment.

No JDG conduit is required, no jumper is required. JDG pipe (sleeve tight galvanized steel conduit, rigid metal flat conduit for electrical installation) is a kind of latest stool banquet type conduit for electrical circuits, connecting casing and its metal accessories using screw tightening connection technology of wire pipeline, no need to do jumping, welding and threading, is the best choice for the special protection pipeline of open and dark insulated wires. The grounding jumper is the grounding metal connection body (wire, round bar, flat steel, flat copper, etc.) between two metal bodies (cabinet, bridge, trunking, steel bar, metal pipe, etc.) of Zaosun Yin.

Refers to the connecting line that needs to be crossed when the grounding bus encounters obstacles (such as building expansion joints, settlement joints, etc.), or the connecting wire that needs to be welded when using metal components and metal pipes as grounding wires; The common Kai trapped grounding span has expansion (settlement) joints, pipe flanges, crane rail grounding jumpers, etc., and the calculation of engineering quantity is based on "place".