GR Box

[Alwayslearningelec]

Is it code/always the case to have box with cover for all ground rods as indicated below.

This Contractor is to furnish, install and coordinate with Foundations Contractor the installation
of all Cast Metal Diamond plate covers and pre-cast electrical box (provided by this Contractor)
for all Grounding Rod access locations.

 

[Fred B]

What is the application? Have seen applications where testing and ongoing monitoring of grounding equipment is needed. The specific method is usually at discretion of customer/engineer/contractor.

 

[infinity]

No it's not required by the NEC. We do this on new construction jobs which probably has to do with future testing but I'm not sure why anyone would want to test this.

 

[Alwayslearningelec]

No it's not required by the NEC. We do this on new construction jobs which probably has to do with future testing but I'm not sure why anyone would want to test this.

Yes they are asking for (5) test wells but then a box for every ground rod( there are 15) so it's contradictory.

 

[Alwayslearningelec]

What is the application? Have seen applications where testing and ongoing monitoring of grounding equipment is needed. The specific method is usually at discretion of customer/engineer/contractor.

Grounding counterpoise loop below grade.

 

[Alwayslearningelec]

Is this really how the ground conductor should be run in a test well? Pigtail.

Grounding Test Wells: Essential for Electrical Safety | ES Grounding

The purpose of a ground test well is two-fold: to be able to quickly and easily measure resistance-to-ground of the grounding electrode and/or to measure point-to-point continuity (resistance) from one electrode to another.

www.esgrounding.com

 

[infinity]

Who is actually going to test this and why? Seems like nothing more than snake oil to me.

 

[Alwayslearningelec]

Who is actually going to test this and why? Seems like nothing more than snake oil to me.

I don't know but they are requesting test wells on the drawings. Doesn't that need to be done?

 

[Alwayslearningelec]

If you use this bonding plate you would NOT need to cadweld, correct?

 

[Alwayslearningelec]

...also these connectors on the ground rod can be used in lieu of cadweld?

Attach files

 

[cadpoint]

It's a spec Item, I don't see the big deal, I've only seen new construction using Quartz(sp) Boxes,
the materials used are very similar to what the OP posted. Your dealing with UL 96A or NFPA 780.

You want to read about it or go get certified one can go to

Lightning Protection Professional Certification

UL Solutions Lightning Protection Professional Certification is designed to highlight individual professionals who have proven their expertise in the lightning protection industry.

www.ul.com

or Goggle - license lightning protection.

The military likes them around ammo buildings which might be a combination of ground ring and lightning protection. Also around building on airfields where the airfield power building is called a vault (that's
above ground), the combo is installed and are documented and the records kept, the records are
given to the owners, Army Corp of Engineers, NAVSEC.