色偷偷免费av男人的天堂,国产精品亚洲综合一区在线观看,亚洲人成影院在线播放高清国产精品兄妹在线观看麻豆,扒开双腿疯狂进出爽爽爽视频,天堂√最新版中文在线久久精品亚洲无中文,欧美精品黄页在线观看视频,绿帽娇妻在卧室疯狂的呻吟,成人影片麻豆国产影片免费观看

ProductUsage：

This product is suitable for 220KV power transmission system. For thetransmission of electricity purposes. Low smoke without flame retardantperformance is higher than the national standard of flame retardant, widelyused in airports, nuclear power plants, key water control projects, high-risebuildings, chemicals, metallurgy, petroleum, transportation and other flameretardant performance demanding places.

Implementation standards：

The implementation standard of 220kV product is GB / Z18890-2002"XLPE insulated power cable with rated voltage of 220 kV (Um = 252 kV) andits accessories" and IEC62067 "rated voltage of 150kV (Um = 170kV)Extruded insulated power cables and accessories of the power cable system"

Flame retardant properties in line with GB / T 18380.3 (IEC 60332-3)requirements

Product Usage：

This product is suitable for 220kV power transmission and distributionsystem for the transmission of electrical energy, low smoke without accountingfor the flame retardant performance higher than the national standard, widelyused in airports, nuclear power plants, key water control projects, high-risebuildings, chemicals, Metallurgy, petroleum, transportation and other flameretardant performance demanding places.

Usefeatures：

1、Maximum rated temperature

Long-term maximum allowable operatingconductor temperature: 90 °C,Maximum operating temperature under short-timeoverload: 130°C,Maximum operating temperature under short circuit (shortcircuit duration 5 s): 250 °C

Installation requirements：

Cable laying shall not be restrictedby drop height; the ambient temperature for laying shall not be lower than 0 °C,and if the ambient temperature is lower than 0 °C, the cable shall bepre-heated.

2.1Minimum bending radius of cable

During cablelaying: 20D₀; and Permanentinstallation: 15D₀.

Note: D₀ is measured outerdiameter of cable.

2.2Maximum allowable axial traction for cableinstallation, T (radial side pressure at bend not being considered

Conductor: T=K×Conductor section (kg)

Aluminum sheath:T=K×Aluminum sheath section(kg)

Where, the coefficient K=7kg/mm²for copper conductor and 4kg/mm² for aluminum conductor and  2kg/mm² for aluminum sheath.

2.3Maximum allowable side pressurewhen cable is bent, P

P=T/R≤500(kg/m), where T is axialtraction, and R is bending radius.