Service upgrade

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Ajr188 said:
but a metal pipe feeding a well has to be hit within the first 5 ft where it enters the house right !??
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metal water pipe that is used as a grounding electrode must be "hit" within 5 feet of entry regardless of such other things like private well or municipal supply.

something like a meter is just another item in that pipe that possibly needs bonded around in other code sections.
 
infinity said:
There is no longer a street side of the water meter requirement although there was one a few decades ago.
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Local code maybe?

NEC used to be able to bond metal piping system pretty much anywhere you wanted. If there was a water meter or other items that maybe common to cause isolation of the underground portion in any way you were required to install a bonding jumper around those though.

I want to say the within 5 feet of entry rule came in either 1993 or 1996 NEC and is for the most part not really changed since then.
 
kwired said:
Local code maybe?

NEC used to be able to bond metal piping system pretty much anywhere you wanted. If there was a water meter or other items that maybe common to cause isolation of the underground portion in any way you were required to install a bonding jumper around those though.

I want to say the within 5 feet of entry rule came in either 1993 or 1996 NEC and is for the most part not really changed since then.
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I believe the 96 code. I submitted the proposal for that change.
The 2017 language is in 250.68(C).
(C) Grounding Electrode Conductor Connections.

Grounding electrode conductors and bonding jumpers shall be permitted to be connected at the following locations and used to extend the connection to an electrode(s):
  • (1) Interior metal water piping that is electrically continuous with a metal underground water pipe electrode and is located not more than 1.52 m (5 ft) from the point of entrance to the building shall be permitted to extend the connection to an electrode(s). Interior metal water piping located more than 1.52 m (5 ft) from the point of entrance to the building shall not be used as a conductor to interconnect electrodes of the grounding electrode system. ...
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The language will be tweaked in the 2023 to specify that the 5' is as measured along the water pipe.
 
The street side of the water main requirement was removed in the 1971 NEC. This is from another thread:

infinity said:
Here's summary:
1) The GEC goes from the neutral to the water pipe electrode, is terminated with a pipe clamp, and the GEC is required to be continuous unless irreversibly spliced.
2) The GEC can land on any portion of the water pipe electrode that is within 5' of the entry of the water pipe electrode into the structure. (Street side of the water main requirement was removed in the 1971 NEC).
3) A water meter requires a bonding jumper around it which can be a separate bonding conductor with two ground clamps.
4) Regardless of where the water meter is in relation to the connection of the GEC to the water pipe there is no requirement to pass the GEC through the first clamp to the second when installing a bonding jumper around the meter.
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don_resqcapt19 said:
I believe the 96 code. I submitted the proposal for that change.
The 2017 language is in 250.68(C).
The language will be tweaked in the 2023 to specify that the 5' is as measured along the water pipe.
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I was going to ask how else you would measure, but I guess somewhere there must been confusion on this, or maybe some plumbers are installing loops of pipe in the entry vicinity that add up in length yet the bonding clamp ends up no more than five feet straight line instead of actual linear amount of piping from actual entry point?

They can figure this out but they still can't specify any specific maximum distance for service conductors entering a building before hitting the service disconnecting means 🙃
 
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