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Do-It-Yourself (DIY) Question & Answer Forum
Earthing conundrum
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<blockquote data-quote="Sidewinder" data-source="post: 483070" data-attributes="member: 9512"><p>Depth must be adequate such that the cable cannot be damaged.</p><p></p><p>You should bury the duct in accordance with NJUG standards and use the correct ducting for LV Lighting.</p><p></p><p>Do the lamps require fusing down at the column?</p><p></p><p>Without a cutout how will you implement local isolation at each column?</p><p></p><p>If the SWA corroded away, it was not terminated correctly.</p><p></p><p>Remember that even if you use a core for earthing, the SWA must still be connected reliably to earth tight through the run to the earthing system of the supply, ergo at the supply end.</p><p></p><p>You need to test to check if they are extraneous-conductive-parts.</p></blockquote><p></p>
[QUOTE="Sidewinder, post: 483070, member: 9512"] Depth must be adequate such that the cable cannot be damaged. You should bury the duct in accordance with NJUG standards and use the correct ducting for LV Lighting. Do the lamps require fusing down at the column? Without a cutout how will you implement local isolation at each column? If the SWA corroded away, it was not terminated correctly. Remember that even if you use a core for earthing, the SWA must still be connected reliably to earth tight through the run to the earthing system of the supply, ergo at the supply end. You need to test to check if they are extraneous-conductive-parts. [/QUOTE]
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Earthing conundrum
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