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Cable connection cable terminal system, connected to distribution box should be carried out before the insulation test, to determine the compressive strength of the insulation layer is in conformity with regulations. Another cable to control loop label and color logo. Cables are tailored to fit, to ensure that electricity

cable connection

cable terminal system, connected to distribution box should be carried out before the insulation test, to determine the compressive strength of the insulation layer is in conformity with regulations. Another cable to control loop label and color logo. Cables are tailored to fit, to ensure that the cable and distribution box after bus duct or wiring end connection do not cause excessive mechanical equipment ground stress. Before connecting, develop the solution of reinforced lap surface, wipe the other appropriate power engineering complex grease, tightening torque is the building electrical engineering quality control engineering acceptance gauge GB50303 - 202, can guarantee connection and conductivity.

5) Cable mark

a mark at the end of the cable laying should immediately carry out; Direction should indicate the route number, cable type, specification model, rated voltage, load-point, cable head, terminal equipment, bend, junction should hang direction, segments every 20 m direction; Direction specifications should be the same, and has the effect of corrosion protection, hanging wall should be strong; Direction should indicate the cable serial number, specifications and rated voltage.

b。 Electrical equipment installation

1) Machinery and equipment unpacking inspection:

installation enterprise, delivery or construction unit to each other, and do a good job in inspection records; In accordance with the machinery, equipment, engineering drawings and equipment technical document, check the machine equipment itself and note, accessories in accordance with design specifications; Note, accessories complete; Product certificate, technical documentation, instructions are complete; The ark itself appearance inspection should be no damage and deformation, paint intact; Tank internal inspection: household electrical appliances and components, insulation porcelain complete, no damage, cracks and other defects.

2) Power distribution cabinet installation: basic channel steel installation; Is in place, to find, ground leveling, in addition to the cupboard door and basic channel steel fixed; Cupboard and cupboard door, cupboard door and side blocking pieces are made of hot dip galvanized screw connection.

distribution box earthing device: each cabinet independent and basic channel steel connection; Each tank into the left down from behind on the basic channel steel welded on the side of his nose, with BV - 6 was two color ground wire to the GND terminal of ark connection strong.

distribution box again string cable connected: according to the circuit principle diagram by Taiwan inspection all the electrical components in the tank is consistent, the rated current and manipulation, practical work switch power supply voltage must be the same; According to the figure laid ark and ark frequency cable between the electrode connections; See laying cable regulations & other; The cable laying & throughout; ; Lines to control the school after each copper core cable heat into round, with hot dip galvanized bolts, eye socket, yellow pad link on each terminal board; Terminal board on each side is usually a terminal pressure line, can't do more than the maximum number of two root, and between the two wires and sockets; Multiconductor should rinse tin, banned there were broken.

3) Lighting box up

getting in and out of line cable wear tube lighting box, according to the specific location to develop embedded parts, cable protection pipe laying considering the reserve control circuit; Box-type transformer pipes at the end of the muscle, set a & phi; 160 PVC tube to carry water to the road rain water Wells, slope of 2%.

lighting box change work grounding, grounding protection and lightning protection grounding with a grounding system, ground wire resistance up to 4.

( 8) Test, adjust