Hi.
Having done an EICR today, i inspected and saw that there was, off an external MET, a 10 mm main earthing conductor to a tnc-s supply to also, the cu Met (as plit load 2002 crabtree) from this, 10mm2 to nearby gas and then 2x 4mm2 sheathed earths to the water.
Testing revealed. 0.03 ohms from water pipe to MET end, with other eathing bonding conductors out off circuit.
Question?
I know all PME supplies require 10mm2 equipotential bonding, but does the reading above allow me to preclude this, other than the main earth and other items noted
regards
Having done an EICR today, i inspected and saw that there was, off an external MET, a 10 mm main earthing conductor to a tnc-s supply to also, the cu Met (as plit load 2002 crabtree) from this, 10mm2 to nearby gas and then 2x 4mm2 sheathed earths to the water.
Testing revealed. 0.03 ohms from water pipe to MET end, with other eathing bonding conductors out off circuit.
Question?
I know all PME supplies require 10mm2 equipotential bonding, but does the reading above allow me to preclude this, other than the main earth and other items noted
regards