stew
Senior Member
- Location
- federal way,washington
Had a panel replacement recently where the 325 meter base was located on a detached garage. There was a 200 amp 120/240 service panel in the garage with only a few 240 volt circuits for welders and a couple of lighting and branch circuit loads. This panel had a main bonding #4 cu going back to the meter enclosure. The 120/240 to the house was run in triplex direct burial cable in a rigid steel stub and apparently then run under the wide garage slab underground to the house to the crawl space where a connection was made(properly spliced) and the run in another rigid steel stub up thru the plate to the 200 amp house service panel. There was a # 4 cu solid run from the house panel thru the stub with the service conductors and then back to the meter base. I dont know how this ever passed even 30 years ago. There was no main bonding conductor from the house panel to the water piping system. I installed that conductor at the house and bonded all the piping. Question is should I remove the redundant bonding back to the meter base or is it ok to leave it. BTW the neutral is bonded at the meter base. Kind of confused me. They had bonded the piping system with a # 6 solid cu in the crawl with 2 sets of bonding clamps and 2 separate #6 solid cu also running back underground some where which I assume was a grounding electrode system somewhere however no connectiion was made back to the house service panel either. I ran a new grounding electrode system from the panel with 2 rods . Very weird system originally in my opinion. Remove old or leave it?