Another client found out this week that their power supply was not as safe as they had assumed. Prior to conducting any electrical testing we also check the wall socket to ensure the integrity of the power supply. By doing this we can confirm the state of the power supply at that socket, which validates the result of any appliance testing done. On Friday we found a serious fault while carrying out what is know as EFLI (Earth Fault Loop Impedance) testing. This test confirms the earth (or fault circuit) has a very low impedance. A low impedance is needed so any fault current (from a faulty appliance or short circuit) has an easy path to earth. Electricity is essentially lazy, it will take the easiest path. Every socket in this business (run from a residential property) registered a reading that was over 17 times higher than the maximum allowable reading! We now have to go through the process of finding out if it is a fault in the pole connection or the wiring supplying the house.
In summary, this client believed their power supply was normal and save. As a result of getting Jim's Test & Tag in to conduct electrical testing of all of their businesses electrical equipment they have found out they have a problem that needs immediate attention.
'If it plugs in it should be tested and tagged'
