本产品适用于架空电力线路The product is used in the field of wvthead power line.
二、产品标准:本产品执行与国际电工委员会IEG207-1966及IEC209-1966的规定相一直的GB1179-83的标准。Manufacturing standed:The standed os GB1179-83 it is epual IEG207-1966 and IEC209-1966.