The cable insulation wrap should be done with high-voltage waterproof tape for protection when the humidity is low to avoid the security risks caused by the residual moisture during the wrapping.

电缆绝缘包扎时使用高压防水胶布进行防护，并在天气湿度较低时进行，防止包扎时的残余潮气造成电气安全隐患。

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This thesis focuses on the research and development of the insulation resistor measuring for low-voltage wire and cable. The first part of the thesis has a review-like character.

在我国，针对高电压等级的电缆绝缘检测技术受到了普遍的重视，但是针对低压配电网的电线电缆绝缘检测技术的研究却进展不大。

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Y series three phase induction motor (380v IP23) is low voltage motor for normal use. The basic protection class are IP23, insulation class is b.

系列三相异步电动机(380 V IP23)是一般用途的低压三相笼型异步电动机，基本防护等级为IP23、绝缘等级为B级。

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