Xi'an overhead cables overhead insulated cables overhead cable insulation

JKLYJ overhead insulated cables, power grids are now an integral part of one of the power cable products, because it has good electrical and dielectric properties, are also widely used in electricity delivery in rural areas, villages and between villages, JKLYJ overhead insulated cable As the name suggests is this: set up in the air, a power cable, overhead cable with XLPE insulated plastic processing machinery and equipment through insulated overhead cables, with good weather resistance, many users and installers faced with how the campus environment there were problems cheap and efficient data transfer between buildings. Route selection, transmission distance and application environment will affect the choice of cable media, incorrect or inappropriate investment choices will lead to wiring are shorter deadline, and reinstall the network will lead to stop system operation. Overhead cable production cost is relatively low, and thus is now widely used. 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.