| http://www.w3.org/ns/prov#value | - Furthermore, insulators must have sufficient mechanical strength and must be installed in such a manner as to provide adequate support for the power wires or cables installed on them.Cables that meet the requirements of Section 75.600 may be supported from noncombustible material such as sand rock or slate roof, concrete or metal roof supports, or masonry walls by lengths of flame-resistant cable
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