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
of these tests and may reject equipment that fails to meet the standard criteria. Claims concerning failure to meet the specification are subject to verification by the manufacturer.
Plastic guard equipment is used for protection against accidental brush contact by the worker. A margin of safety shall be provided between the maximum voltage at which they are used and the proof-test voltage at which they are tested. This relationship is shown in Table 1 and Table 2. The equipment is designed onl
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