338.10(B)(4)(b) also kicks you over to 225 I... like 225.12+14- which kicks over to Table 230.51C.. maybe? (I'd do a messenger ground).
Dan Brown
Foxfire Energy Corp.
Renewable Energy Systems
(802)-483-2564
www.Foxfire-Energy.com
NABCEP #092907-44
-------- Original Message --------
Subject: Re: [RE-wrenches] Conductor supporting requirements
From: Dave Click <[email protected]>
Date: Thu, April 07, 2011 3:11 pm
To: [email protected]
338.10(B)(4)(b) says to support in accordance with 334.30:
334.30 Securing and Supporting.
Nonmetallic-sheathed cable shall be supported and secured by staples,
cable ties, straps, hangers, or similar fittings designed and installed
so as not to damage the cable, at intervals not exceeding 1.4 m (4.5 ft)
and within 300 mm (12 in.) of every outlet box, junction box, cabinet,
or fitting. Flat cables shall not be stapled on edge.
Sections of cable protected from physical damage by raceway shall not be
required to be secured within the raceway.
Andrew Truitt wrote:
> Does anyone know the maximum support spacing for conductors in free air
> and what code section addresses it? I'm thinking of USE-2 or PV Wire
> being run in loop hangars along purlins under an array.
> Thanks in advance!
> For a brighter energy future,
>
> Andrew Truitt
> Principal
> TruittRenewableEnergyConsulting
> NABCEP Certified PV Installer™ (ID# 032407-66)
> <tel:%28202%29%20486-7507>(202) 486-7507 <tel:%28202%29%20486-7507>
> http://www.linkedin.com/pub/andrew-truitt/8/622/713
> <http://www.linkedin.com/pub/andrew-truitt/8/622/713>;
>
> 24 copy.jpg
>
> "Don't get me wrong: I love nuclear energy! It's just that I prefer
> fusion to fission. And it just so happens that there's an enormous
> fusion reactor safely banked a few million miles from us. It delivers
> more than we could ever use in just about 8 minutes. And it's wireless!"
>
> ~William McDonough
>
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