P
piz
hello I am confused rewired a house this week but I dont do much testing on the ring main as a domestic installer normal kitchen fitting radial cooker extra lights etc I rememberr being told this takes a bit of getting used to
this is what has happened so far r1 = 0.48 rn=0.72 r2=0.90 I know that we divide 2.5 by 1.5=1.666*by r1 this should be calculated cpc reading
then on my sheet it says R1+R2 I have cross connected live and cpc on the ring and gone around my sockets highest reading 0.41 is tis my R1+R2 or am I missing something and is R2 just measurment from cpc at cu to wurthest point on ring main ie half way please help
on top of this is the max disconnection time for tt 0.2sec found that in the regs
thought r1 and rn should be about the same might be clip not tight enough
please help
Thanks
this is what has happened so far r1 = 0.48 rn=0.72 r2=0.90 I know that we divide 2.5 by 1.5=1.666*by r1 this should be calculated cpc reading
then on my sheet it says R1+R2 I have cross connected live and cpc on the ring and gone around my sockets highest reading 0.41 is tis my R1+R2 or am I missing something and is R2 just measurment from cpc at cu to wurthest point on ring main ie half way please help
on top of this is the max disconnection time for tt 0.2sec found that in the regs
thought r1 and rn should be about the same might be clip not tight enough
please help
Thanks
