ECM Buyers' Guide
  

Code Q&A

Mar 14, 2003 12:00 PM, By Mike Holt, NEC Consultant


When you find yourself stumped by the Code, just e-mail your question to mike@mikeholt.com or visit www.mikeholt.com. Your question and Mike's answer may be posted in a future Code Q&A column.

Q. I remember being taught not to use a panel or disconnect as a raceway, but I can’t find a reference to this rule in the Code. I want to be able to justify the extra cost other than just knowing it is the right thing to do. Could you point me in the right direction?

A. Cabinets containing panelboards, cutout boxes or enclosures for switches, and meter socket enclosures can be used as a raceway through which to feed conductors if the conductors don’t fill the wiring space at any cross section to more than 40%.

In addition, splices and taps are permitted if they don’t fill the wiring space at any cross section to more than 75%.

Find More Code Q&As »




Acceptable Use Policy
blog comments powered by Disqus

what's wrong here?

Whats Wrong Here?

Mar 11, 2010 12:54 PM

What's Wrong Here?

Feb 18, 2010 5:04 PM

What's Wrong Here?

Feb 4, 2010 5:06 PM

View all What's Wrong Here?

product of the week

CAD Software

March 15, 2010

CAD Software

View all 2010 Products of the Week

Shocking Stats

54
More Industry Statistics

Recent Comments

More...




Professionals provide answers to your questions. Become an expert!


EC&M TV

Arlington CED1 Entrance Hoods

The Scoop Series CED Entrance Plates and Hoods are reversible, non-metallic, single and two-gang versions...

Southwire's 2009 Cable Innovation Road Show

Gain years worth of insight with Southwire’s 2009 Cable Innovation Road Show with Grounding Seminar!

George Brown College

Online Tech Training – Electronics, PLC, and Robotics programs at George Brown College.

 

Listen
Sizing Gen-Sets: Facts, Hints, and Good Judgment
Listen

The complexities of today’s commercial or industrial facility, with their equipment environment of linear and nonlinear loads, places a whole new light on sizing engine-generator sets.

Arc Mitigation - A Total System Approach
There’s no question the risk of arc flash hazards is real in the electrical industry. What many don’t always realize is the impact in business interruption from such events typically far outweighs the physical damage to equipment. View this On Demand Webinar!

Implementing an Industrial Ethernet Infrastructure that's Built to Last
This webinar explores the key benefits of implementing a robust complete, end-to-end Industrial Ethernet solution – from cabling and connectivity, to active components and associated hardware. View this On Demand Webinar!

resources

product info icon

product info

tradeshow icon

tradeshow

research icon

research

rss icon

rss

Browse Back Issues

Browse Back Issues