Liquid silicon rubber injection moulding has constantcoolingpressure to the cable. It is Low in electricity output while "breathing" together the cable.
液体硅橡胶注射成型对电缆本体有恒定的收缩的收缩压力，与电缆同“呼吸”局部放电最低。
2
If the wellhead pressure exceeds that of the pipeline, then the gas can be passed through a choke or throttled in a constant-enthalpy Joule-Thomson expansion to provide cooling.