Overhead insulated cables, overhead cables Xi'an, 10kv overhead insulated cables

Product Type: JKLYJV Product Name: aluminum aerial polyethylene insulated wire and cable product specifications: 1x25mm Product Voltage: 0.6 / 1kv implementation of standards: GB / T3956.8-2008 Packing: wooden tray packing or plastic packing cloth packaging production process: aluminum Overhead insulated wire and cable polyethylene core is prescribed by the state standards unannealed aluminum wire twisted together after a round aluminum wire, and polyethylene insulated plastic, through equipment produced by processing technology products! Use features: 1, cable laying temperature should be not lower than -20oC 2, the highest long-term allowable working temperature of cable conductor: XLPE 90oC; high-density polyethylene insulation 75oC. 3, short (the longest duration of no more than 5S) maximum temperature cables: XLPE 250oC; high-density polyethylene insulation 150oC. 4, cable bending radius should be not less than: 20 (cable diameter + Conductor OD) -5%, mm Product appearance: Compared with ACSR, insulated overhead cables have erected small spacing between cables, reducing space safety factor advantages. Aerial insulated cables are mainly used in power grids in rural and forest areas, the product structure is simple and safe to use, with excellent mechanical, physical and electrical properties. Resistance to tracking, anti-surface discharge resistance, excellent performance atmosphere. Overhead cable at the same time for long-distance power transmission Suburb, cable inductance value is very low, low line voltage drop, do not increase the boost measures have high economic efficiency. Overhead cable insulation system in use to protect access to zero, and also to work in power neutral ground and in a certain separation distance and terminal repeat ground zero line. In the three-phase four-wire distribution system, the grounding device called a direct connection to earth grounding distribution transformer secondary neutral through. The power neutral ground, can reduce the per-phase power supply voltage to ground when a person touches a phase power, the body is subjected to phase voltage. In ungrounded systems, when one phase is grounded, the human touch another phase lines, the effect on the human body is the line voltage power supply, which is a great danger. Aerial insulated cables while neutral grounding distribution transformer for use to protect access to zero provided the prerequisites. Grounding grounding resistance must not be greater than 4Ω.