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Hi all I am testing final circuits in an office block it is a medium to large installation Fan coil units LCM ( Lighting Control Unit) and floor tracks I have completed my R1+R2 tests and today I started to test live circuits but the results are coming in lower that R1+R2 I have explained about...

Hi guys  i was carrying out a insulation resistance test on a board today, the board is full of rcbo. the company wanted me to carry out a erroneous connection test.when I did it I kept getting a low reading, the rcbo have a functional Earth on them .when I carried out a overall insulation...

Hi guys, i am a Electrician and have been asked to install a number of CCTV systems in petrol stations  I am new to this kind of work, l have done cable runs and have fitted cameras the only bit I would be worried about is setting up the DVR and putting it on the customer phone  any advice squat