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Code Quiz: Skin-Effect Heating and Pull Boxes

2015-06-25 14:04:19| Electrical Construction & Maintenance

For skin-effect heating, pull boxes installed for pulling the electrically insulated conductor in the ferromagnetic envelope shall be permitted to be buried under the thermal insulation, provided their locations are indicated by ________ markings on the insulation jacket surface and on drawings. read more

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Category:Construction and Maintenance

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