PIR question

[johnelectrical]

SSE are you saying there is a main protective bonding conductor going from the MET to a clamp on the gas pipe next to the meter and then another bonding conductor going from a point 6M along the gas pipe to the incoming water pipe?
If so there are two issues; 1, the fact that the main bonding conductor is not continuous so that the removal of one bond to an extraneous conductive part (gas) could cause another connection to an extraneous conductive part (water) to be open/disconnected 528.3.3 There is no regulation in BS7671 that specifically requires the bonding conductor to be void of any permanent joints, ie soldered, brazed or crimped joints deemed to be permanent. So the guy who said crimping the two bonding conductors at the midpoint of the main bonding conductor sounds OK to me.
Point 2 is only if the two BS951 bonding clamps are 6M apart on the gas pipe. 543.2.1 a gas pipe shall not be selected as a protective (bonding) conductor

 

[SSE]

SSE are you saying there is a main protective bonding conductor going from the MET to a clamp on the gas pipe next to the meter and then another bonding conductor going from a point 6M along the gas pipe to the incoming water pipe?
If so there are two issues; 1, the fact that the main bonding conductor is not continuous so that the removal of one bond to an extraneous conductive part (gas) could cause another connection to an extraneous conductive part (water) to be open/disconnected 528.3.3 There is no regulation in BS7671 that specifically requires the bonding conductor to be void of any permanent joints, ie soldered, brazed or crimped joints deemed to be permanent. So the guy who said crimping the two bonding conductors at the midpoint of the main bonding conductor sounds OK to me.
Point 2 is only if the two BS951 bonding clamps are 6M apart on the gas pipe. 543.2.1 a gas pipe shall not be selected as a protective (bonding) conductor

Coming from the consumer unit to the gas meter, main point of entry there is a 10mm earth run to it that is clamped onto the gas pipe. From this gas meter the pipe which the earth is clamped on, runs about 6m to the back of the house where the boiler is and the main incoming water service. Then there is a 10mm earth that is clamped from the gas pipe to the water to each of the other pipes beside it.

 

[telectrix]

Point 2 is only if the two BS951 bonding clamps are 6M apart on the gas pipe. 543.2.1 a gas pipe shall not be selected as a protective (bonding) conductor

but then look at 543.2.2 (viii). and 543.2.6