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IEVref:442-02-15ID:
Language:enStatus: Standard
Term: extra-heavy duty rigid steel conduit
Synonym1: EHDRS (abbreviation)
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Definition: a part of a closed wiring system of circular cross-section made of steel of welded construction capable of providing extra-heavy mechanical protection to conductors or cables in electrical installations and allowing them to be drawn in and/or replaced

NOTE – Extra-heavy mechanical protection is provided by using steel of the grade and thickness specified in the appropriate standard.


Publication date:1998-11
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