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Do-It-Yourself (DIY) Question & Answer Forum
Replacing switch plates without a colour guide .
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<blockquote data-quote="SPECIAL LOCATION" data-source="post: 546748" data-attributes="member: 250"><p>Only sort of skip-read previous post...</p><p>so I may have missed an important bit of info...</p><p></p><p>BUT.. a common difficulty for DIY's with light switch related problems...</p><p>is that there is NO industry standard label / designation for light switch terminals...</p><p></p><p>e.g. On some 2-way switches terminals are labelled 'C', 'L1', and 'L2',</p><p>where the electrical connections are swapped between 'C' to 'L1' and 'C' to 'L2'.</p><p></p><p>However on other manufactures they are labelled... 'L1', 'L2' and 'L3',</p><p>where the electrical connections are swapped between 'L1' to 'L2' and 'L1' to 'L3'.</p><p></p><p>So if you just swap 'L1's' and 'L2's' then join the 'L3' and 'C' it will NOT work correctly!!!</p><p></p><p>Also there are NO set rules about which cable colours are used for each terminal.. </p><p>So the actual colours used, Brown/Black/Grey.. (previously Red/Yellow/.Blue on older wiring).. will be down to the person designing / installing the work.</p><p></p><p>Personally I tend to use Brown (or Red) for 'C' / 'L1'</p><p>Black (or Yellow) for 'L1' / 'L2'</p><p>Grey (or blue) for 'L2' / 'L3'</p><p></p><p>Depending upon age or wiring, type of switch.</p></blockquote><p></p>
[QUOTE="SPECIAL LOCATION, post: 546748, member: 250"] Only sort of skip-read previous post... so I may have missed an important bit of info... BUT.. a common difficulty for DIY's with light switch related problems... is that there is NO industry standard label / designation for light switch terminals... e.g. On some 2-way switches terminals are labelled 'C', 'L1', and 'L2', where the electrical connections are swapped between 'C' to 'L1' and 'C' to 'L2'. However on other manufactures they are labelled... 'L1', 'L2' and 'L3', where the electrical connections are swapped between 'L1' to 'L2' and 'L1' to 'L3'. So if you just swap 'L1's' and 'L2's' then join the 'L3' and 'C' it will NOT work correctly!!! Also there are NO set rules about which cable colours are used for each terminal.. So the actual colours used, Brown/Black/Grey.. (previously Red/Yellow/.Blue on older wiring).. will be down to the person designing / installing the work. Personally I tend to use Brown (or Red) for 'C' / 'L1' Black (or Yellow) for 'L1' / 'L2' Grey (or blue) for 'L2' / 'L3' Depending upon age or wiring, type of switch. [/QUOTE]
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Replacing switch plates without a colour guide .
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