| 摘要 |
An improved self-regulating pipe heating cable assembly that includes a self-regulating cable having a temperature-sensitive conducting layer between a pair of busses and a plug coupled to a first end of the self-regulating cable for supplying electricity thereto. The improved self-regulating pipe heating cable assembly includes an indicator coupled to the self-regulating cable at a location other than where the plug is connected. The indicator is responsive to the supply of electricity to the self-regulating cable so that proper operation of the self-regulating heating cable assembly can be determined.
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