how to test wiring


Postby bazza » Mon Aug 27, 2007 2:41 pm

hi guys havnt got a problem just looking for some information is it possible to find out which is the sw live from say a ceiling rose by using a multimeter and if so how ? THANX 4 any replys bazza
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Postby BLAKEY1963 » Tue Aug 28, 2007 12:05 am

[quote="bazza"]hi guys havnt got a problem just looking for some information is it possible to find out which is the sw live from say a ceiling rose by using a multimeter and if so how ? THANX 4 any replys bazza[/quote]

BAZZA
SET MULTIMETER TO OMHS SCALE AND TOUCH PROBES OF LEADS TOGETHER, U SHOULD GET A DEFLECTION OF THE NEEDLE
OR THE DIGITAL OHMS SCALE GOING 2 ZERO.
WITH POWER ISOLATED AT MAINSWITCH OF BOARD , U WOULD
TEST CABLE AT LIGHTING POINT LOOKING 4 A DEFLECTION OF NEEDLE
OR ZERO OMHS WHEN LIGHT SWITCH IS OPERATED. THE TEST COULD THEN B DONE USING CPC ( EARTH ) TO IDENTIFY A SWITCH WIRE IF TWIN RED. ( BEARING IN MIND SWITCH CABLE COULD B RED AND BLACK )
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Postby bazza » Tue Aug 28, 2007 10:49 am

CHEERS 4 that blakey great help bazza
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