Recent content by FAQ

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SAFE ISOLATION. THANKS TO SECURESPARK Lately, there have been incidents of posters taking risks with electricity & working live. I would like to make everyone using this site acutely aware of the importance of safe isolation. To an untrained person, the risks of working with electricity are...

SAFETY TIPS read here too Here are some general safety tips for doing electrical work particularly on installations where you are dubious about the quality! 1: Test for live both before and after isolating. Testing before isolating serves both to test your tester and to ensure that...

11) EARTHING ARRANGEMENTS Thanks to Lectrician There are 3 main commonly used Earthing Arrangements found in domestic installations. TN-C-S ; TN-S ; TT The T stands for 'TERRA' which is French for Earth. The C stands for 'COMBINED' in relation to the neutral and the earth. The S...

) SIZING MCBs & CABLES Ban all Sheds Note - this considers overload protection only. Other factors such as voltage drop and disconnection times need to be considered when designing a circuit. Also, it only quotes the example tripping/non-tripping currents for Type B MCBs, not cartridge or...

) MCBs Thanks to Ban all Sheds Reason says that there ought to be a Type A MCB, but I've never seen any info on one. B, C, and D have different time/current curves for tripping. Type B will trip faster than type C for a given over current, and type C will be faster than type D. The...

) Online Sources of Reference Materials Thanks to Ban all sheds Electricians Guide: here TLC Cable Calculator: here Kevin Boone's Cable Selection Guide: here NOW HERE: http://web.archive.org/web/20070327014113/http://www.kevinboone.com/cableselection_web.pdf Kevin Boone's...

) USEFUL REFERENCE BOOKS Thanks to Ban ALL Sheds IMPORTANT NOTE - when buying books from Amazon, seek confirmation that they are the latest versions. http://www.amazon.co.uk/exec/obidos/ASIN/0852028172 http://www.amazon.co.uk/Collins-Complete-Wiring-Lighting-Jackson/dp/0007267282...

How to add a P.I.R. with floodlight. Connecting to the ring main (socket circuit) Cables used from the JB to the F.C.U must be the same size as the existing cable (2.5mm) You must then put a 3A fuse in the F.C.U. Connecting to a lighting circuit, the F.C.U can be a switch instead...

11) LIGHTING USING CHOCK BLOCK HARMONIZED Single way lighting using chock block, courtesy of RF Lighting: Click image to enlarge Two way lighting using chock block: Click image to enlarge Two way intermediate using chock block: Click image to enlarge

10) CEILING ROSE HARMONIZED WIRING If a metal light switch is used, connect the earth wire to the earth terminal on the light switch and loop to the back box. It is possible to place more than one intermediate switch on the cable between both of the two way switches making more switch...

9 ) HOW TO SPUR OFF A SOCKETS RING CIRCUIT Click image to enlarge Thanks To RF Lighting

8 ) LIGHTING USING A JUNCTION BOX HARMONIZED COLOURS 1 way lighting using junction box: Click image to enlarge 2 way lighting using junction box Click image to enlarge 2 way intermediate using junction box: Click image to enlarge

7) WIRING DIAGRAMS Here are some colour variations on the choc block connection method. Click image to enlarge Click image to enlarge This is a multi switch setup. You can fit as many intermediate switches as you like. Click image to enlarge

6) MORE SWITCHING METHODS NOTE :Don't be confused if a different colour goes to a different terminal. Often Red is used as "Common" & Blue & Yellow as strappers (L1 & L2). Click image to enlarge Click image to enlarge