ctann
New member
- Location
- Santa Clara County, California
Hi all,
First post here, so please be gentle!
I am having some trouble nailing down exact code-compliant requirements for 48V Battery bank interconnects ("intercell connectors"). This particular battery bank will be nominal 48V, 1150Ah, and provide a maximum current of 700A (protected by 4x175A OCPDs at the equipment). It will be installed outdoors in a Nema3R chest-style (lockable) battery enclosure.
From checking section 480.4B and C, the only requirements I can see make reference to temperature and mechanical stress, and also mention "terminal plates" being used where practical. I could not find a good definition of exactly what terminal plates are though - is that just another name for a solid bus bar?
Assuming the cross-section of the "terminal plate" is adequate for the max load, is there any other code governing the interconnect? Any requirement to insulate given that it will be installed in a locked (access restricted) battery box? Obviously these bus bars will not be UL listed...
Thanks,
Chris.
First post here, so please be gentle!
I am having some trouble nailing down exact code-compliant requirements for 48V Battery bank interconnects ("intercell connectors"). This particular battery bank will be nominal 48V, 1150Ah, and provide a maximum current of 700A (protected by 4x175A OCPDs at the equipment). It will be installed outdoors in a Nema3R chest-style (lockable) battery enclosure.
From checking section 480.4B and C, the only requirements I can see make reference to temperature and mechanical stress, and also mention "terminal plates" being used where practical. I could not find a good definition of exactly what terminal plates are though - is that just another name for a solid bus bar?
Assuming the cross-section of the "terminal plate" is adequate for the max load, is there any other code governing the interconnect? Any requirement to insulate given that it will be installed in a locked (access restricted) battery box? Obviously these bus bars will not be UL listed...
Thanks,
Chris.