National standard LGKK-900 galvanized flexible hose for hollow expansion conductor of Dazheng substation transmission transformer

Description :

　　 National standard LGKK-900 galvanized flexible hose for hollow expansion conductor of Dazheng substation transmission transformer

　　National standard LGKK-900 galvanized flexible hose for hollow expansion conductor of Dazheng substation transmission transformer

　　Product usage characteristics

　　1. The LGJK series wires do not have metal hoses, and the raw material cost of the wires is lower than that of the LGKK series wires.

　　2. The service life of LGJK series wires is longer than that of LGKK series wires. Because the service life of LGJK type wires depends on galvanized steel wires, while the service life of LGKK type wires depends on metal hoses. Galvanized metal hoses have thin walls and their corrosion resistance does not match the conductivity of aluminum and steel wires.

　　3. The hidden dangers of LGJK type wires are less than those of LGKK type wires, which is beneficial for the safe operation of power stations. The use of "T" - shaped crimping for flexible busbars in power stations can easily cause the metal hose to flatten or break, and in severe cases, it can lead to water accumulation in the wires. Becoming a serious hazard during wire operation; The steel core of LGJK type wire has high strength and is difficult to flatten and crush, so there is no such hidden danger.

　　4. The LGJK series busbar is suitable for the current carrying needs of various levels of circuits in substations, which can increase the flexibility of power station design. Especially, the LGJK type large section conductor has a larger outer diameter and is more suitable for use in high-altitude power stations, while the LGKK type conductor does not have the above advantages.

　　5. The LGJK series busbar has a uniformly and tightly arranged outermost aluminum wire, which has the advantages of good resistance to electrical interference and reduced corona loss; The LGKK series wires, due to the large deviation in the outer diameter of the metal hose, must cause instability in the wire structure or the occurrence of loose strands, protruding wires, and other phenomena, thereby reducing the electrical performance of the wires.

　　6. The long-term operating temperature of LGJK series soft busbar is 80 ℃. At 80 ℃, the current carrying capacity can be increased by more than 20%, resulting in better economic benefits for the product.

　　7. During the twisting production of LGKK type wires, due to the short metal hose and frequent welding, the hose strength is not high and the daily outer diameter deviation is large, resulting in a low product qualification rate and high labor intensity during manufacturing; The LGJK series soft busbar is relatively easy to operate during twisting, ensuring the stability of product quality.

AfterSalesService :

• Expansion wire