Power cables installed the matters needing attention
Cable and heat pipe parallel when installation, keep the distance of 2 m, cross should maintain a 0.5 m.
Cable and other pipe parallel or cross when installation are to keep the distance of 0.5 m.
Cable directly buried installation, 1-35 KV cable directly buried depth not less than 0.7 m.
10 KV and below parallel cable installation, from each other not less than 0.1 m net, 10-35 KV not less than 0.25 m; Cross when installed distance is not less than 0.5 m.
Global trade nets cables is not lower than 0 ℃ temperature, bending radius: many core cable acuity 15 (D + D), single core cable acuity 20 (D + D), (D for cable diameter, D for conductor outer diameter).
6 KV cable connector:
(1) the cables installed head, must terminal strip semiconductor electricity, operation shield shall not damage, should avoid insulation point uneven situation and, when necessary, use sand paper mill flat; Shielding ends should level off, and to put the graphite layers (clean carbon particles).
(2) the plastic insulation cable end copper tape screened and steel must be good grounding, lance to short circuit also follow the principle, avoid unbalanced three-phase operation at the end of ShiGang armored induced emf, even "spark" and burning sheath wait for an accident. Grounding lead wire requires use I tin copper wire and cable, woven with copper connections application ferrochrome tin welding, should not use a blowtorch seal welding, lest the burning of the insulation.
(3) three-phase copper tape screened should respectively and ground is linked together, pay attention to shield earth line and steel wire should be armoured grounding respectively with insulating derivation, welding, the position of the ground should as far as possible by.
The cable end and middle of the basic requirements: a joint. The conductor connection; B. insulation, reliable, and recommends the radiation crosslinking silicone rubber insulation materials heat shrinkable type; C. Good seal; D. enough mechanical intensity, can adapt to the various operation conditions.
Cable end must use prevent water and other corrosive materials in the water, in case of erosion caused by aging in insulation tree breakdown.
Cable of loading and unloading must use a crane or forklift, banned the flat and large, flat cable installation should be put to use cable car, or because of the damage of the external force cable artificial drag and scratches.
Cable as the reason cannot laying in time, should put it in place, prevent sun dry storage air, cable end water explosion.
Note: electric wire and cable installation should be familiar with the electric wire and cable performance installation personnel or professional technology personnel as there are still not clear, such as matters to the related technical department, please or our technology department consultation.