Shanghai Metal Corporation is a leading of high-voltage cable manufacturer and supplier.
High-voltage cable is a kind of power cable, which refers to the power cable used to transmit between 1kv-1000kv, which is mostly used in power transmission and distribution. The components of the high-voltage cable from inside to outside include: conductor, insulation, inner sheath, filler (armor), and outer insulation. Armored high-voltage cables are mainly used for underground burial, which can resist high-strength pressure on the ground and prevent other external forces from damaging.
If you want to know more about our cable products or high-voltage cable price please feel free to contact us, we will reply you within 24 hours.
Most of the 10kV urban high-voltage distribution lines use conductors with an insulating sheath, but even if there is an insulating sheath, one or several porcelain bottles are required to insulate the pole or tower.
Bare conductors are used for high-voltage transmission lines of 35kV and above, and more porcelain bottles are used for insulation due to different voltage levels.
Due to the different pollution levels in each region, the number of porcelain bottles in the circuit porcelain string of the same voltage level in different regions is also different: 110kV 7 pieces; 220kV 13 pieces; 330kV 17 pieces; 500kV 25 pieces.
1. Processing method:
High-voltage electric wires are formed by bundling a plurality of arranged conductors and covering them with an insulator
2. Production flow chart:
(1). Conductor → high-voltage cross-linked three-layer co-extruded insulation injection molding → pressure test → cable or steel armor → sheath injection molding → qualified inspection → package packaging → factory
(2). Conductor → conductor stranded wire → high-voltage cross-linked three-layer co-extruded insulation injection molding → withstand voltage test→cable or steel armor→sheath injection molding→qualified inspection→ packed packaging→delivery
3. Material elements:
Package of high-voltage cable:
1) According to customer request, 100m/roll,200m/roll,300m/roll....
2) Inner packing: Wooden reel, plastic reel, and paper reel available.
3) Outer packing: Carton box, pull out box, pallet available.
4) Other packing available according to client's request.