| http://www.w3.org/ns/prov#value | - Class F insulation consists of materials or combinations of materials such as mica, glass fibre, asbestos, etc., with suitable bonding, impregnating or coating substances, as well as other materials or combinations of materials, not necessarily inorganic, which by experience or tests can be shown to be capable of operation at the Class F temperature (materials possessing a degree of thermal stabil
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