Always Moore
Member
- Location
- Maryland, USA
- Occupation
- Private electrical inspector
Yesterday, I observed the currents in the table.
These panels are in a park and the MCB is mounted on the side of the meter cabinet. The CB subpanel is mounted on a wood "telephone" pole with a light and camera.
Elapsed time was about two minutes for each breaker. The AC current display of the (zeroed) Southwire 21050T meter was constantly changing by a few milliamperes - slowly drifting up and down, up and down. Only breakers numbers 8 & 10 are connected to devices on the pole with the CB panel; the rest of the conductors are underground in PVC conduit. [I don't know if the neutral is bonded to the ground on either panel. Nor do I know if the MCB panel (360' away) is equipped with a ground rod. I didn't open the panels.]
I am trying to get some ideas where these currents are originating. The area is mostly woods. There is an apartment building about 215 feet away. I know nothing about the apartment building.
| Amperes | Amperes | ||
| Breaker # | State | Minimum | Maximum |
| ALL | off | 3.77 | 4.26 |
| 1/3 | on | 3.98 | 4.6 |
| 2/4 | on | 3.95 | 4.6 |
| 5 | on | 3.6 | 4.11 |
| 9 | on | 3.38 | 3.95 |
| 10 | on | 3.25 | 3.69 |
| 11 | on | 3.237 | 3.58 |
| 12 | on | 3.8 | 3.74 |
| Main | off | 4.09 | 4.41 |
These panels are in a park and the MCB is mounted on the side of the meter cabinet. The CB subpanel is mounted on a wood "telephone" pole with a light and camera.
Elapsed time was about two minutes for each breaker. The AC current display of the (zeroed) Southwire 21050T meter was constantly changing by a few milliamperes - slowly drifting up and down, up and down. Only breakers numbers 8 & 10 are connected to devices on the pole with the CB panel; the rest of the conductors are underground in PVC conduit. [I don't know if the neutral is bonded to the ground on either panel. Nor do I know if the MCB panel (360' away) is equipped with a ground rod. I didn't open the panels.]
I am trying to get some ideas where these currents are originating. The area is mostly woods. There is an apartment building about 215 feet away. I know nothing about the apartment building.