ECM Buyers' Guide
  

NEMA Publishes Cable Tray Standard Revision

Jun 11, 2009 9:58 AM

NEMA, Rosslyn, Va., has published ANSI/NEMA WC 51-2009/ICEA P-54-440, "Ampacities of Cables Installed in Cable Trays." The standard was produced by the Energy Division Working Group 440 of the Insulated Cable Engineers Association (ICEA), Carrollton, Ga., and was last revised in 2003. WC 51/P-54-440 provides ampacity ratings for 600V to 15,000V solid dielectric cables installed in cable trays, tabulated for single conductor cables, triplexed assemblies of single conductor cables, and three-conductor cables incorporating an overall jacket.

In addition, the revision includes corrected values in Table 5-4 and editorial changes for clarity throughout the document. As in the previous edition, correction factors are provided to adjust the tabulated values for ambient and operating temperatures, cable construction, tray covers, and diversification of the cable loading.

“With these latest revisions, ANSI/NEMA WC 51/P-54-440 will be even more helpful to the electrical utility industry,” says E. J. Bartolucci, a member of the working group that revised the standard. “It is an informative, easy-to-reference resource for the complex task of establishing ampacity ratings of cables installed in cable trays.”

The contents and scope of ANSI/NEMA WC 51-2009/ICEA P-54-440 may be viewed by visiting the NEMA Web site. A copy of the revised standard may be purchased for $88 by calling (800) 854-7179.

Want to use this article? Click here for options!


Electrical Zone

Governor Schwarzenegger Announces First-in-the-Nation Statewide Green Building Standards Code

Jan 27, 2010 2:32 PM

Continuing California's efforts to fight climate change and protect the environment, Gov. Arnold Schwarzenegger recently announced the California Building Standards Commission (BSC) unanimously adopted the first-in-the-nation mandatory Green Building Standards Code (CALGREEN)...

Architecture Billings Index Remains in Negative Territory

Jan 27, 2010 2:31 PM

On the heels of a more than three-point drop in November, the American Institute of Architects' (AIA), Washington, D.C., Architecture Billings Index (ABI) had a negligible increase of less than one point in December...

NEMA's Business Confidence Indexes Post Positive Results to Kick Off 2010

Jan 27, 2010 2:30 PM

The National Electrical Manufacturers Association's (NEMA), Rosslyn, Va., Electroindustry Business Confidence Index (EBCI) for current North American conditions rebounded in January, rising nearly 9 points to 57.1...

No Recovery in 2010, Say Contractors in AGC Survey

Jan 27, 2010 2:19 PM

Nearly nine-in-ten contractors say there will be no recovery in 2010 as part of the "2010 National Construction Hiring and Business Outlook Forecast"...




Acceptable Use Policy
blog comments powered by Disqus

what's wrong here?

What's Wrong Here?

Feb 4, 2010 5:06 PM

Whats Wrong Here?

Jan 21, 2010 4:40 PM

What's Wrong Here?

Jan 7, 2010 12:47 PM

View all What's Wrong Here?

product of the week

Enclosures

February 8, 2010

Enclosures

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!

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