Analysis of the Causes of Power Cable FiresFirst, the insulation layer of the power cable is composed of various combustible materials such as paper, oil, hemp, rubber, plastic, asphalt, etc. Therefore, the cable has the possibility of fire and explosion. The cause of the cable fire and explosion is:●Short circuit failure caused by insula...
The reasons for the sharp increase in water bills in many parts of FranceThe price of electricity and raw materials has already had an impact on the cost of water, from January 1, 2023, the cost of water in France will rise sharply, and in some areas may be close to 20% of the original increase. Electricity and raw materials, although not often contacted i...
Some Misconceptions When Buying Wires And CablesMisunderstanding a picture is cheap, do not ask the wire outletThere are tens of thousands of wire and cable companies in the market. Different manufacturers, different materials, different labors, and transportation and management costs will cause even different prices for wires of the same spe...
Causes of Cable Heating and Considerations When Selecting CablesWhen the power cable passes a certain load current, it always exceeds or exceeds the maximum continuous working temperature allowed by the cable (the cross-linked polyethylene insulated cable allows 90 °C). The cable will heat for a long time. If the fault is not found, the ca...
Reasons why high-voltage cables cannot be buried undergroundUltra-high voltage transmission refers to the use of 500 kV - 1000 kV voltage levels to deliver electrical energy. If the 220 kV transmission index is 100%, the relative investment per kilometer of EHV transmission, the relative cost per 100 kWh of electricity transmission per kWh, and t...
Explanation of the Difference Between Wires and Cables and Wire Harnesses1 Wire and cable are used to transmit electrical (magnetic) energy, information and wire products for electromagnetic energy conversion. Broad wire and cable are also referred to as cables. Narrow cable refers to insulated cable, which can be defined as a collection...
Reasons for Thermal Elongation Testing of XLPE InsulationCables have a very large proportion in life. As a common insulating material for cables, XLPE is often mentioned. For example, CU XLPE SWA PVC cable, 33kv XLPE copper cable, and aluminum XLPE ABC cable.1 Crosslinked polyethylene (XLPE) is used as a polyolefin material....
The purpose of the power cable line test is to detect defects and weak links in time, so as to deal with them in time, and to prevent the defects from expanding and damaging the cables. Cables are buried in the ground, because it is not easy to check, and experiments mainly judge the change in insulation performance. Therefore, all newly ins...
Causes of Cable Collapse During OperationIn recent years, cable accidents have occurred a lot, causing many fire accidents, including PVC housing wire, CU/PVC electric wire, and XLPE copper power cable.There are many reasons why cables are broken down during operation. The main reason is the reduction of insulation strength and the damage from e...
