Hi all,
I want to install a charger outlet, for a Model 3, in the garage of my condo and after checking the cable that supplies power to the panel inside my condo in NEC table 310.15(B)(16) .... It is not looking good at all, I think. I need some help verifying the info I got. I did call an electrician and he was here but he hasn't gotten back to me yet.
The service cable to my condo has the following label, sorry for the caps I was just copying what's on the cable:
"ALCAN S STABILOY(R) TYPE SE CABLE STYLE SER TYPE XHHW CDRS 600 VOLTS 3 CDRS 4 AL 1 CDR 6 AL (UL) 1985"
This is aluminum cable. It is AWG 4 for the three conductor that are insulated (Hot) and AWG 6 for the uninsulated ground, right? That is what I see inside the breaker box if I remove the panel inside my condo.
The main breaker to my condo is 60A. I checked the aluminum cable rating with the NEC table 310.15(B)(16). This table shows 55A (for 60C), 65A (for 75C), 75A (for 90C). It looked like I'm either 65A or 75A with cable type "XHHW". There is a note on that table to go check table 310.104. This table shows the different types. I found "XHHW" and it says that 65A is for wet locations and 75A for dry and damp locations. My cable is on the inside of the building (maybe in the external wall behind the stucco, not sure) and I don't see it going underground so I'm thinking is dry location so 75A is the max amps. The external wall faces the sunset so it gets pretty warm in the summer. I figure 75A with derating for temperature, about 60A? Breaker is maxed out no current available for charger extra breaker?
Please tell me I'm wrong! More info available upon request ... I called another electrician, I'm getting impatient that the first hasn't called back yet, but he wanted to charge me $150 to check what was possible.
Thanks
I want to install a charger outlet, for a Model 3, in the garage of my condo and after checking the cable that supplies power to the panel inside my condo in NEC table 310.15(B)(16) .... It is not looking good at all, I think. I need some help verifying the info I got. I did call an electrician and he was here but he hasn't gotten back to me yet.
The service cable to my condo has the following label, sorry for the caps I was just copying what's on the cable:
"ALCAN S STABILOY(R) TYPE SE CABLE STYLE SER TYPE XHHW CDRS 600 VOLTS 3 CDRS 4 AL 1 CDR 6 AL (UL) 1985"
This is aluminum cable. It is AWG 4 for the three conductor that are insulated (Hot) and AWG 6 for the uninsulated ground, right? That is what I see inside the breaker box if I remove the panel inside my condo.
The main breaker to my condo is 60A. I checked the aluminum cable rating with the NEC table 310.15(B)(16). This table shows 55A (for 60C), 65A (for 75C), 75A (for 90C). It looked like I'm either 65A or 75A with cable type "XHHW". There is a note on that table to go check table 310.104. This table shows the different types. I found "XHHW" and it says that 65A is for wet locations and 75A for dry and damp locations. My cable is on the inside of the building (maybe in the external wall behind the stucco, not sure) and I don't see it going underground so I'm thinking is dry location so 75A is the max amps. The external wall faces the sunset so it gets pretty warm in the summer. I figure 75A with derating for temperature, about 60A? Breaker is maxed out no current available for charger extra breaker?
Please tell me I'm wrong! More info available upon request ... I called another electrician, I'm getting impatient that the first hasn't called back yet, but he wanted to charge me $150 to check what was possible.
Thanks