I am renovating a cabin including complete re-siding so I thought I would use this as an opportunity to upgrade the electrical service to 200amp (currently 100amp). Two reasons, 1) I might want to add full HVAC in the future, 2) the current service is not up to code and down-right dangerous (as you can tell from the attached picture). In the picture the black box is the location of the interior (now main) panel.
I initially started this discussion on this thread: Pros/Cons combined meter/load center
I've met with the Staking Engineer and we discussed various service entry points. Given the landscape, it will be difficult to put a pole in that actually helps. I've attached a photo with the final plan based on everyone's input
I like the idea of a combo unit because I think it will look a little cleaner and has a smaller foot print than a separate meter base/panel. Plus the unit I am considering (Square D SO2040M200S) allows me to bring a conduit out the top to feed my subpanel through the rim joist instead of coming out the side and taking a 90 degree turn up to the rim joist. The Square D SO2040M200S combo is about 18" wide and 41" tall as compared to (as example) UTRS202B meter base plus HOM12M200PRB panel which together are about 45" tall and only give me 12 full spaces.
- Service attaches to the (reinforced)flying rafter via 3" Clevis attached with through bolt (blue line)
- Service head approximately 12" below fascia and not more than 24" from Clevis
- Square D SO2040M200S Combo meter base/panel
- 2" RMC to meter box/panel combo - mounted so meter is 5' above landing (Red)
- 2" (or 2.5") Schedule 80 PVC from panel to rim joist and enter basement (Red)
I plan to use:
- (3) 4/0 Al XHHW-2 for service entry to meter
- Homeline (HOM2100CP) 100amp branch breaker
- SER 1-1-1-3 Al for the 20' run to 100amp subpanel (green line)
- #4 Cu ground wire to main panel
I think this is all doable and appears to meet code requirements.
- Does this all sound reasonable?
- I want a spacer between the panel and concrete block. I believe I shouldn't mount the box directly on treated lumber without a spacer due to reaction with chemicals (?). This area will see weather so standard lumber will probably be short-lived. Suggestions?