Instead of the time consuming numerical computation a simplified calculation of the maximum field strength is presented for the purpose of dimensioning the three-phase gas insulated cable .

为确定 三相充气管道 电缆的尺寸，本文提出利用最大场强的简化计算方法来取代繁复的数值计算。

However when applied to long-distance and big-diameter pipes using of three-phase heating cable is more economic and reasonable and showing more advantage .

但是，当在长距离、大口径管道进行伴热 保温时，采用 三相带比单相带更经济、更合理、更能显示使用 三相带的优越型。

Main equipments of the cryogenic system include a liquid nitrogen gas-liquid separator a centrifugal pump a sub-cooler the three-phase HTS cable cryostats a heat exchanger in the sub-cooler and a vacuum pump for pumping the liquid nitrogen etc.

冷却系统主要包括气液分离器、低温液氮泵、减压过冷容器、换热器、 HTS 电缆管路，以及减压抽空系统等。

Calculation of real fault location of three-phase cable

三相 电缆真故障点的计算

Cryogenic system for the 75-m three-phase AC high temperature superconducting power cable

75米 三相交流高温超导 电缆冷却系统

FDP3 three-phase constant watt heating cable provides frozen-prevention and temperature-maintenance of pipelines and valves which is same for FDP2 single-phase constant watt heating cable .

FDP3型 三相恒功率电热带与FDP2型单相恒功率电热带一样，能用于解决管道和阀门等的防冻和保温。