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Mike
Mike, Master Electrician
Category: Electrical
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Does canadian electrical code require sand bedding -metallic

Customer Question

Does canadian electrical code require sand bedding for non-metallic conduit under a concrete floor slab? Need a code reference.
Submitted: 1 year ago.
Category: Electrical
Expert:  Phil replied 1 year ago.
Hello, ever since the 1950's all north american building and electrical codes have required sand bedding for metalic or non metalic electrical conduit in any trench whereever located, and 'shading' over the top... that is to reduce the risks of any sharp rocks working their way into the conduit. Digging out the various codes that cover that will take more than an hour, for the amount you offered it seems most experts are not willing to take the time and hope that you rate positively. Tell me why you need the information, that will help immensely. You should know that the building inspectors decisions are 100% final in all cases regardless what the code books say or do not say... that is addressed on the cover pages of all of the code books. "The code is a minimum standard, and is over ruled depending on what is deemed safe by the local officials" So that even if there is no code reference at all on the topic, and the inspector demands sand bedding, his requirement rules... that said, all of the dozens of various codes and references require sand bedding for all buried pipe.

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