Huatong Cable: The difference between high voltage cable and low voltage cable

2017-09-14

High-voltage cable refers to the transmission of 10kv-35kv between the electrial power cable, used in power transmission on the main road. The implementation criteria are GB / T 12706.2-2008 and GB / T 12706.3-2008. Low-voltage cable type are mainly cross-linked polyethylene insulated PVC sheathed copper cable (YJV type) and PVC insulated PVC sheathed copper cable2 kinds. High-voltage cables and low-voltage cables are generally distinguished from the following:
1, high-voltage cable from the inside out to the insulation layer, semi-conductive layer, shielding layer, filling layer and rubber protective layer.
2, low-voltage cable insulation thickness is generally 1-3mm, 10KV electrial power cable insulation thickness is generally 5-8mm. 35kv high-voltage cable thickness is generally 10mm.
3, The insulation after the peel, low-voltage cable only rubber protective cover.
4, the outer cable above the cable code is not the same.
power Cable according to the voltage level is divided into weak power cable 450 / 750V and below, low voltage cable 0.6 / 1kV, medium voltage cable 3-35kV, and high voltage 35-110kv, and extra high voltage 110-750kV. Low-voltage cable using ordinary PVC and XLPE can produce, medium and high voltage cable are not all cross-linked cable, 6kv-35kv using three co-extruded, high density XLPE production.