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发表于 2011-7-29 12:52:33
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Extraneous-Metallic-Part: a metallic part, structure or
any metalwork within a Premises which is not part of, and
is unrelated to, the electrical Installation and which is not
designed to carry current, but which may become live
due to a fault condition. Extraneous-Metallic-Parts are
required to be connected to Earth for Installations or parts
of Installations classified as Earthed Equipotential Bonded
Systems。 |
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