johnthestudent said:Thank you gentlemen for your replies.
The question that was asked was - If you were going to add a tee into an existing gas pipe for a cooker connection, what precautions and checks would
you make at the meter.
I think to play safe i am going to go with -
Remove meter and cap/plug 3 ends.
and two continuity bonds.
It depends who your teacher is and for us who your corgi inspector is. My teacher taught me to take meter off and put it outside turned upside down. My inspector had no problem with this, but he said that what he used to do was just leave it right way up with flux tins sat on the outlets.............
But if you reply with what you posted you have definately nailed it.
Whereas in reality as stated many fitters just shut the ecv and get to work.
The temporary continuity bond along the supply pipe is actually mainly to prevent a spark from ignighting any gas hanging around, but when the meter is removed it is more significant as it maintains the integrity of the equipotential zone. The incoming gas supply introduces a possible different potential into the equipotential zone (the house) which must be brought to the same potential as the other extraneous sources of earth potential. This is much more important than temporarily bonding the gas pipe downstreamn of the main earth bonding, which is actually as far as bs7671 conscerned not required unles the work is taking place in a special location.
It's a typical case of rules for corgi registered installer going above and beyond what is sensibly required of people considered intelligent enough to make their own minds up. (electricians)