Different diameter of the pvc tube were able to wear large area of the wire
Second, the production to see the insulation thickness low pressure (1kv below) 1 to 3 thick, 10kv cable 5 ~ 35kv cable 10mm or so; low pressure or weakness also have a layer of insulation and protective layer high-voltage cable to remove the skin after the insulation layer, is wrapped in the cable core outside, white like plastic main insulation layer, low-voltage cable without the main insulation layer, but the rubber protective layer Third, see the voltage registration drawings above General YJV-1KV-4 * 150 or YJV-10KV-4 * etc These voltage levels
First, see the cross-section cable the most internal conductive core (for the copper core or aluminum core), followed by: insulation, semi-conductive layer, shielding, filling layer, steel Kai protective layer, rubber protective layer (water blocking)
Lion cable to teach you to correctly distinguish between high and low voltage power cable