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Do-It-Yourself (DIY) Question & Answer Forum
plastic back boxes (recessed) - approved?
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<blockquote data-quote="Mikron" data-source="post: 471092" data-attributes="member: 19972"><p>We've just recently been able to get plastic back boxes here in Cyprus (they have been exclusively galvanized steel until now).</p><p></p><p><strong>Are these approved by BS7671?</strong></p><p></p><p>They have no BSBI marking; just 'CE AP3020'.</p><p></p><p>There is no indication of the type of plastic; hence flammability, etc. is not apparent.</p><p></p><p>My photos show a double box, with a very handy, tight-fitting, temporary insert.</p><p></p><p>As you can see, they incorporate glands (16 &amp; 20mm, not 25), have <u>two</u> adjustable bolt pillars, and no little holes for back-filling mortar/adhesive to weep through. The glands also provide some anchoring in the mortar, irrespective of whether conduit is present.</p><p> </p><p></p><p>[ATTACH]9570[/ATTACH]</p><p></p><p>[ATTACH]9571[/ATTACH]</p><p></p><p>[ATTACH]9572[/ATTACH]</p></blockquote><p></p>
[QUOTE="Mikron, post: 471092, member: 19972"] We've just recently been able to get plastic back boxes here in Cyprus (they have been exclusively galvanized steel until now). [B]Are these approved by BS7671?[/B] They have no BSBI marking; just 'CE AP3020'. There is no indication of the type of plastic; hence flammability, etc. is not apparent. My photos show a double box, with a very handy, tight-fitting, temporary insert. As you can see, they incorporate glands (16 & 20mm, not 25), have [U]two[/U] adjustable bolt pillars, and no little holes for back-filling mortar/adhesive to weep through. The glands also provide some anchoring in the mortar, irrespective of whether conduit is present. [ATTACH]9570._xfImport[/ATTACH] [ATTACH]9571._xfImport[/ATTACH] [ATTACH]9572._xfImport[/ATTACH] [/QUOTE]
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plastic back boxes (recessed) - approved?
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