Forum: Grounding versus Bonding

hey moderators,I am happy to finally be here as I have been a guest/lurker for too long. I have an easy question you have been through before. We are...

I have a 480v meter pedistal feeding a 480 single phase tranny stepping down to 120/240. Its been a while since Ive wired one like this. I have a few...

I have a 30KVA 3 phase dry type transformer that is wired with the 208 as the primary and 480V secondary. It serves a 50A 3 phase load. No nuetral...

New houses use nonmetalic water piping with metal hose bibs. Is a hose bib near an electrical service required to be bonded to the main service...

If an Antenna Discharge Unit (ADU) is positioned in close proximity to building steel, which is in turn a member of the Grounding Electrode System...

where can i find literature that recommends installing ground rods at least 4' away from the foundation

I am stationed overseas right now, no code book handy!! My friend and I were talking about his cabin we are going to wire when we get back, about...

I was alway told that you didn't have to bond the neutral at a disconnect if it was bonded at the service? Is this just a rule of thumb? What...

Official Galluup Poll: Per 250.140 Exception, are you truly comfortable bonding frame of kitchen stove to grounded conductor ? Answer choices: ...

250.50 says it requires the inclusion of at least 1 concrete encased electrode described in 250.52 A 3 in the grounding electrode system for...

I have a client who has supplied a steel mast, which is secured to the roofing support structure and projects thru the roof and extends 4 Ft. above...

Can someone please help me better interpret this. Does it mean if you run a delta 3 wire service grounded or not, is a neutral required at service?

We added a piece of equipment (about 40 ft by 40 feet by 60 feet tall) containing 480 VAC industrial blowers, electrical control panels that house...

I installed an intrasystem bonding terminal that attaches to the bottom of the meter socket via a 1/2" nipple and a locknut through a KO. I ran a #6...

Most of my experience is with Commercial projects, but recently I've been getting asked for advice about residential remodels -- particularly the...

In previous edition of the NEC a sub panel with a circuit more then 20 AMPs was required to have its own ground rod. Does this still apply.

We are being asked to test the existing bonding of a public pool. Is there a recommended procedure for this. We plan to connect a wire to the pump,...

can you ground light poles off of the rebarb in the base looking at 250.52(3)

I was on a project site where 3-1/C cables were used in triplex in tray to serve equipment and only one-EGC was run for the parallel set of...