hi guys just wired up a new ring main for a house, confused on the test results though, firstly all other ring mains in the house that are new are okay and have came out as expected, tester has just been calibrated and batterys are okay and the ring main is a true ring... am using a metrel tester with the easy switch adaptor and have connected up right for testing at board.
Results for dodgy ring main are as follows
L-L 0.80 ohms
N-N 0.81 ohms
E-E 1.25 ohms
R1+rn 0.52 ohms
R1 + R2 0.01 ohms
Does anybody have any ideas why the r1+r2 reading is so low? I have read else where it could be to do with the metal backboxes being bonded making a parrellel path is this common?
Cheers for reading be grateful for any replys
Results for dodgy ring main are as follows
L-L 0.80 ohms
N-N 0.81 ohms
E-E 1.25 ohms
R1+rn 0.52 ohms
R1 + R2 0.01 ohms
Does anybody have any ideas why the r1+r2 reading is so low? I have read else where it could be to do with the metal backboxes being bonded making a parrellel path is this common?
Cheers for reading be grateful for any replys