The actual Bonding cable should be connected to the left pipe clamp.

Not what the Regulations or Gas Companies state but that is the extraneous-conductive-part - as too is the other pipe if it reenters the ground.

Can't see if the green cable is also connected. Where does it go?

Geoff, the original green smaller cable goes to the main earthing terminal. I am surprised that it went to the gas supply pipe not the pipe on the consumer's side of the meter, i.e. the copper pipes at the top of the picture.

Z.

Gas bonds should be on the consumer's side - otherwise you risk defeating the gas supplier's deliberate insulating joint (if fitted). If you're worried about the incoming pipe being extraneous and touchable it can be covered with insulating material (at least up to the supply side of the valve where the IJ is likely to be, if fitted),

   - Andy.

Looks to me like a copper tee joint just above the RH meter outlet. If so shouldn't the bonding clamp be connected below that?

Also, what does the triangular Cadent warning notice say?

Edit; the partly blue notice above the meter seems to be an information diagram on how to install bonding

AJJewsbury said:

If you're worried about the incoming pipe being extraneous and touchable it can be covered with insulating material (at least up to the supply side of the valve where the IJ is likely to be, if fitted)

Surely if there is an IJ fitted, and there is an extraneous conductive gas main pipe, it would warrant a call to 0800 111999 to get them to insulate their pipe?

But the incoming pipe IS the e-c-p whether there is an IJ or not.

Is insulating material an alternative to bonding in any other situation?

Both vertical iron pipes disappear into the concrete garage floor. 

Z.

I am not too familiar with the style of insulated joints in gas pipes. But I was wondering if the generous use of white P.T.F.E. tape may provide the same degree of electrical insulation. See picture, right hand vertical pipe.

Z.

The upper copper gas pipe does have a "T" joint with a pipe running upwards at high level. It may feed the boiler in the bungalow. The meter is in the garage. The iron gas pipe may run in the screed to the kitchen cooker points that are capped off.

Z.

If you are attempting to use PTFE tape as an insulator on the joint you will be very disappointed, However if you rely on continuity in all such joints you will also be . Known as Murphy`s Law or Sod`s Law just like the butterside up/butterside down syndrome