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Do-It-Yourself (DIY) Question & Answer Forum
Changing Light Switch Unsure On Wiring
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<blockquote data-quote="Sharpend" data-source="post: 388224" data-attributes="member: 17152"><p>The wires that are in 'com's' in the plastic switch go to the 'L's' in the new switch and the black in the 'B 1w' goes to the 'L1' of one switch, the red and the black in the other side of the plastic switch 'B 1w &amp; B 2w' go to the 'L1 &amp; L2' on the other side of the new switch.</p><p></p><p>As the new switch is metallic you will also need a piece of earth wire going from the earth terminal to the earth port in the back box, failure to do this leaves the new switch in a dangerous condition giving rise to a potentially lethal shock tony person operating the switch should fault condition occur. So do not replace until you have the additional earth in place.</p><p></p><p>Of course it goes without saying that the circuit should be isolated at the fuse box prior to changing the switch.</p></blockquote><p></p>
[QUOTE="Sharpend, post: 388224, member: 17152"] The wires that are in 'com's' in the plastic switch go to the 'L's' in the new switch and the black in the 'B 1w' goes to the 'L1' of one switch, the red and the black in the other side of the plastic switch 'B 1w & B 2w' go to the 'L1 & L2' on the other side of the new switch. As the new switch is metallic you will also need a piece of earth wire going from the earth terminal to the earth port in the back box, failure to do this leaves the new switch in a dangerous condition giving rise to a potentially lethal shock tony person operating the switch should fault condition occur. So do not replace until you have the additional earth in place. Of course it goes without saying that the circuit should be isolated at the fuse box prior to changing the switch. [/QUOTE]
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Changing Light Switch Unsure On Wiring
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