[...] from the consumer unit & looped to each switch point. Then just running a live/neutral/earth[...] switch. The only reasons I can think they are doing this is either to save cable or they don't know
[...] 0.91 add this togather with ZE .26 takes me over the limit for earth fault loop for a type 2 MCB. I can't seem to find a reason as all continuity checks are ok. The customer has replaced all original
of earth electrodes on the circuit is reasonably standard. Please could you clarify whether an earth[...] and does not contain a specific requirement for the installation [...]
[...] a small power[...] (R1+R2), was in excess of the measured earth loop impedance test result (Zs). Is there a technical reason for this, and would this test result be acceptable? Answer: The possibilities include problems
[...] Thermoplastic Twin and Earth cable these required to be upgraded to a 4mm due[...] current carrying capacity of the cable. The reason for applying both these correction factors
