套管绝缘子 bushing ; pothead insulator ; bushing insulator ; through insulator
瓷绕线管绝缘子 porcelain bobbin insulator
绕线管式绝缘子 bobbin insulator
电子管绝缘电阻测试仪 electronic tube insulation resistance tester
套管式绝缘子 bushing insulator
在新、旧管子连接处安装绝缘法兰，破坏了长管道的原电池，即：阳极(新管子)和阴极(旧管子)间电断路。
By insulating flange at the junction between the new and old pipe, the long line galvanic cell is "broken up" - the anode (new pipe) is electrically separated from the cathode (old pipe).
管内导线包括绝缘层在内的总面积不应大于管子的内截面的40%。
The total area of the wires inside the tube (including the insulation coat) should not be more than 40% of the area of the internal section of the pipe.
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