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<blockquote data-quote="Phoenix" data-source="post: 398933" data-attributes="member: 8133"><p>To add to what M107 put:</p><p></p><p>Lead sheathed pre-1947</p><p></p><p>Green only cpc sleeving pre 1977</p><p></p><p>White as L2 conductor Pre 1964</p><p></p><p>No CPC in lighting Pre 1966</p><p></p><p>Volt operated ELCBs pre 85</p><p></p><p>Double pole fusing pre mid 50's</p><p></p><p>Use of conduit/trunk as cpc - fell out of favor in the 80s</p><p></p><p>Brown wylex boards = pre 80's. white/ivory boards = 80's / 90's</p><p></p><p>Imperial cable sizes = pre 1970's</p><p></p><p>2.5/1 twin and earth 1971-1981</p><p></p><p>Metal hand rails, roof access ladders etc bonded - over zealous application of 15th edition in 1980's</p><p></p><p>Overdoing it on RCBOs in commericial installs (all circuits on rcbos, even those run surface to fixed equipment) - over zealous application of 17th edition in 2008-2010</p><p></p><p>Wylex NB/HB range - late 80s</p><p></p><p>Main switch / RCD split consumer units - 1990s</p><p></p><p>Breakers to BS3871 = up till about 94/95</p><p></p><p>Breakers to BSEN 60898 - from about 92/93</p></blockquote><p></p>
[QUOTE="Phoenix, post: 398933, member: 8133"] To add to what M107 put: Lead sheathed pre-1947 Green only cpc sleeving pre 1977 White as L2 conductor Pre 1964 No CPC in lighting Pre 1966 Volt operated ELCBs pre 85 Double pole fusing pre mid 50's Use of conduit/trunk as cpc - fell out of favor in the 80s Brown wylex boards = pre 80's. white/ivory boards = 80's / 90's Imperial cable sizes = pre 1970's 2.5/1 twin and earth 1971-1981 Metal hand rails, roof access ladders etc bonded - over zealous application of 15th edition in 1980's Overdoing it on RCBOs in commericial installs (all circuits on rcbos, even those run surface to fixed equipment) - over zealous application of 17th edition in 2008-2010 Wylex NB/HB range - late 80s Main switch / RCD split consumer units - 1990s Breakers to BS3871 = up till about 94/95 Breakers to BSEN 60898 - from about 92/93 [/QUOTE]
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