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NECA Revises Standard for Installing Metal Cable Tray Systems

Apr 04, 2016

NECA/NEMA 105-2015 Standard for Installing Metal Cable Tray Systems has just been meticulously revised and published by NECA. This ANSI-approved standard describes installation procedures for metal cable tray systems. NECA has partnered again with the National Electrical Manufacturers Association (NEMA) to produce this National Electrical Installation Standard (NEIS) for installing metallic cable tray based on NEMA VE 2. This installation standard also addresses shipping, handling, storing, and installing cable tray systems and provides information on maintenance and system modification. 

Minimum safety requirements for installing metal cable tray systems are provided in Article 392 of the National Electrical Code. As with all NEIS, NECA/NEMA 105 goes far beyond the minimum Code requirements by addressing the quality and performance aspects for installing this type of wiring method. How bends should be made, how supports should be installed, and how to effectively plan cable tray runs for optimum routing, are just a few features covered in this valuable installation standard. As with other NEIS, engineers and designers can rest assured that by referring to NECA/NEMA 105 from plans and specifications they are establishing the confidence that owners are seeking relative to quality. NECA/NEMA also continues to effectively compliment electrical training programs by addressing many of “the how” to issues related to installing metal cable tray. This revised standard is packed with solid, useful information the industry has come to expect from the NEIS. 

“When cable tray is installed in a workmanlike manner, customers can see the difference” explains Michael Johnston, NECA’s Executive Director of Standards and Safety. This standard provides essential information about workmanship specifically related to cable tray systems. Information related planning as well as detailed installation graphics are an essential part of any electrical standard, and NECA/NEMA 105 delivers.

NECA’s NEIS® are the only quality and performance standards for electrical construction. They are used primarily by electrical contractors, consulting engineers, facility managers, and other professionals who design and specify for electrical construction projects. With their installation detail, illustrations and thorough explanations, NEIS® are also a valuable training tool for electrical construction industry. The NEIS are regularly and meticulously revised and expanded to align with the current edition of the NEC and other applicable standards. 

“NECA’s National Electrical Installation Standards library has grown over the years, and as new technologies emerge, the NEIS evolve and keep pace,” Johnston said. Johnston also emphasizes that “the standards are constantly providing significant value to those in the electrical designing and engineering communities. The NEIS help professionals in developing design specifications in that they reduce and often eliminate specification writing time.” 

ORDERING INFORMATION: NECA/NEMA 105 is available as a PDF and printed booklet $20 for NECA members and $40 for non-members. Bulk pricing is available.

Visit NECAStore.com to purchase

Contact the NECA Order Desk at (301) 215-4504, (301) 215-4500 fax, or
orderdesk@necanet.org for more information.