Do we NEED to Bond this Metal Gas Pipe?
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- เผยแพร่เมื่อ 6 พ.ย. 2023
- To workout if the metal pipework in an installation is an extraneous conductive part one of the obvious signs it is comes by looking at the incoming pipework into the property. The incoming gas pipe in this installation is made of metal and with no insulated sections before the metal pipework in the property that means that this gas pipe needs bonding to Earth.
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I had a gas safe inspection, he said that the earth bond connection should be fitted before the first gas fitting after the meter.
Other gas fitters have been told the same during inspections.
The metal pipe is connected as it goes into the earth , am I missing something 😅
Earth bonded before the first tee.
They call the tee a branch
Poipe
Beat me to it
Yes but should be nearer the consumer side of the meter. Assuming it's metal pipe on the incomer.
Hmm. regs say "the connection shall be made to the consumer's hard metal pipework", what's the score if that metal pipework on the consumer side if installation is lead?
Is there an off-the-shelf solution that'll use a constant force spring and some braiding?
Or is the sparky about to learn how to braze braiding on to lead?
What's the score??
Does lead conduct electricity?
If the answer is yes and that pipe enters the ground then you have to bond.
How you do it is a different question.
I find a self tapper works well in this situation
What's the electrical resistance of the flex pipe?
If the wire weren't present, what would happen if the pipe is broken? When the wire is present then the potential is the same, so no risk of a spark from different potential
Is it not metal all through the meter
Both meter unions are connected to the metallic meter bracket
Irrelevant even if true.
You are required to bond to earth if the pipe can introduce an earth potential.
Not a.metal poipe!?
Shouldn’t the earth cable be wrapped around the screw of the earth strap ? Theres an unequal amount of strands either side of the screw which may cause a bad connection?
yes because of the dielectric union
Nothing to do with dielectrics.
It is simply that the metal pipe, to use the correct phrase "can introduce an earth potential" which is a fancy way of saying the metal pipe conducts electricity and enters the physical earth. If those two requirements are met, then it must be earthed.
Nope it’s overkill
Are you sure that copper pipe is a gas line and not water?