- Location
- Tennessee NEC:2017
- Occupation
- Semi-Retired Electrician
Here are some pics of an upcoming job. I am to replace the fuse panel with a breaker panel. The 1st pic is how everything is set up now. There is a fused disconnect that feeds the fuse panel and also another disconnect for the A/C and range. The water heater is also fed off of that disconnect. The plan is to leave the fused disconnect but do away with the other disconnects for the range, A/C & water heater.
First question, the fused disconnect is rated for 200A according to what I can see on the nameplate. However, it is fused at 125A. Can the smaller fuses be used with a disconnect being rated higher?
Next, The GEC is landed in the meter base then to the water pipe. The only bonding I see would be from the conduit from meter pan to the disconnect. Would I also need to run a bonding jumper from the neutral lug to the disc. can? Or since the GEC is probably bonded in the meter and that being bonded through the conduit, would that be enough. I was thinking if I had to, I would come off the neutral lug and bond to another lug that I would have to add to the side of the can. It would have to be double lugs so I would have somewhere to run the EGC over to the new (sub) panel.
Would it be better to use PVC to connect the disco and the new panel?
What size do the wires look to be from the meter that enters the bottom of the disco? To me, they look like either 1/0 or 2/0.
First question, the fused disconnect is rated for 200A according to what I can see on the nameplate. However, it is fused at 125A. Can the smaller fuses be used with a disconnect being rated higher?
Next, The GEC is landed in the meter base then to the water pipe. The only bonding I see would be from the conduit from meter pan to the disconnect. Would I also need to run a bonding jumper from the neutral lug to the disc. can? Or since the GEC is probably bonded in the meter and that being bonded through the conduit, would that be enough. I was thinking if I had to, I would come off the neutral lug and bond to another lug that I would have to add to the side of the can. It would have to be double lugs so I would have somewhere to run the EGC over to the new (sub) panel.
Would it be better to use PVC to connect the disco and the new panel?
What size do the wires look to be from the meter that enters the bottom of the disco? To me, they look like either 1/0 or 2/0.