ASTM F712工人防护用电绝缘塑料防护设备的标准试验方法和规范
日期:2012-02-08 11:15
y for phase-to-ground or covered phase-to-covered-phase exposure.
Note 1Rubber insulating equipment is realistically limited to Class 4 material in the design specification standards. Plastic guard equipment has been designed to go beyond these voltages and provide a satisfactory degree of worker protection. Major differences exist in use criteria between the rubber and the plastic guard equipment. Each glove, sleeve, or other article of rubber insulating equipment has a given safety factor for
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