Also, you didn't specify, but AC and DC are specifically allowed in the
same raceway per 300.3(C)(1). Only If the DC circuits are PV source or
output circuits, then 690.31(B) prevails, which says they can't share a
raceway. But again, as Chris mentions, this restriction does not apply
to direct burial.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 12/28/2016 12:58 PM, Chris Mason wrote:
No problem with same trench, the requirements are that they are not in
the same raceway.
On Wed, Dec 28, 2016 at 1:37 PM, Corey Shalanski
<co...@joule-energy.com <mailto:co...@joule-energy.com>> wrote:
For some upcoming utility-scale projects our design team is
wondering about placing direct-bury AC and DC circuits in the same
trench.
- Firstly, is this even /Code/-permissible?
- Secondly, are there any common sense reasons (induced
voltage/signal interference/etc) for not doing this?
Thanks,
Corey Shalanski
Joule Energy
New Orleans, LA
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