Drake;
I had trouble finding that reference, then I found it in the back in
Annex B. I think that would apply to the ampacity of the DC line, but
then for the 12.47 Kv line, I believe you would need Figure 310.60 which
then references Tables 310.60 C (77) thru Table 310.60 c (86)
Without knowi
Check out Figure Figure B.310.15(B)(2)(1)
At 07:43 AM 11/4/2011, you wrote:
Separation is an issue the NEC does not address clearly .However,
please make sure you allow adequate room to repair the conduit if
damaged, and 12' seems to be the magic number. I lso had no luck
looking in 490.
N
Separation is an issue the NEC does not address clearly .However, please
make sure you allow adequate room to repair the conduit if damaged, and 12'
seems to be the magic number. I lso had no luck looking in 490.
NEC 300.4(C)(2)(e) also seems a bit relevant where it allows for conductors
of differ
...@lists.re-wrenches.org] On Behalf Of Jerry Caldwell
Sent: Thursday, November 03, 2011 5:42 PM
To: RE-wrenches
Subject: [RE-wrenches] cable spacing in trenches
Can anyone direct me to the NEC article that stipulates how many inches of
separation must be between cables operating at different
Can anyone direct me to the NEC article that stipulates how many inches of
separation must be between cables operating at different voltages?
I have a project with PV combiner box home runs at 1,000 volts DC in the same
trench with 12.47 kV cables. Table 300.5 shows minimum cover requirements f
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