New edition of National Electrical Safety code released

The 2012 edition released by IEEE clarifies standards and rules

08/13/2011


IEEE, the world's largest professional association advancing technology for humanity, today announced the availability of the new National Electrical Safety Code – 2012 Edition. The NESC provides practical guidance to help safeguard employees and the public when electrical supply and communications lines are installed operated and maintained, including overhead and underground electrical supply lines, telephone or cable and TV lines, and signal and power installations for railroads.

“The NESC continues to be the industry standard in the electrical industry and communications utility field," said Michael Hyland, Chair, NESC Committee and Senior Vice President of Engineering Services for the American Public Power Association. "A tremendous amount of effort has gone into the creation of the 2012 edition over the past five years and we'd like to thank everyone involved in the complex revisions process. We are happy to have had the opportunity to take part in this project and are very pleased with its final outcome.”

Some of the revisions in the NESC 2012 edition include:

  • Scope, application and definition rules extensively revised to provide clarification improvements, particularly with respect to whether the NESC or the National Electrical Code (NFPA 70) applies in certain situations.
  • Grounding rules added specificity to the methods to be used to help achieve effective grounding connections.
  • Electrical supply stations rules added options for improved protection of energized parts from interference by activities outside the stations and for guarding inside the stations. The overhead general rules revised requirements for inspections and for facilities to be grounded or insulated.
  • Underground rules revised the inspection rules and clarified requirements for direct-buried cables and conduits not part of a conduit system.
  • Work rules added options for determining appropriate arc ratings for apparel to be worn while working on energized lines, including a new Section on Clothing requirements for <1000 Volts and added maximum clearing times allowed for specified apparel arc ratings.
  • Revised the minimum approach distances (MADs) to meet the requirements of IEEE 516-2009, and revised specification for the location of employee protective grounds.

Read full details of the revisions made in the 2012 edition of the NESC.

The NESC covers a broad range of areas including storage batteries, transformers and conductors to switchgear, circuit breakers, physical clearances, cable terminations, safety warning signs, and protective clothing for workers installing electrical equipment. For example, its clearance rules outline the minimum distances between electric transmission wires and the ground, and structures such as buildings and trees.

As the secretariat for the NESC, the IEEE provides a home for the NESC Committee and supports its activities with a full range of administrative, logistical, publishing and other services. The IEEE also gives users comprehensive support in obtaining, understanding and working with the Code.

“As the trusted steward for the NESC standardization process, the IEEE Standards Association plays a vital role in helping to improve the safety of electricity supply workers and the public by publishing the Code,” said Judith Gorman, managing director, IEEE-SA. “The IEEE-SA has administered and published the NESC for 40 years. Today the Code is used throughout the U.S. and in more than 100 countries, and we are proud of our ongoing commitment to maintain the NESC as it executes its rigorous process that results in consistent high quality and reputation throughout the industry.”

Details of the NESC can be found on the NESC web page.

www.ieee.org 

IEEE

" - Edited by Chris Vavra, Plant Engineering, www.plantengineering.com"



Top Plant
The Top Plant program honors outstanding manufacturing facilities in North America.
Product of the Year
The Product of the Year program recognizes products newly released in the manufacturing industries.
System Integrator of the Year
Each year, a panel of Control Engineering and Plant Engineering editors and industry expert judges select the System Integrator of the Year Award winners in three categories.
June 2018
2018 Lubrication Guide, Motor and maintenance management, Control system migration
May 2018
Electrical standards, robots and Lean manufacturing, and how an aluminum packaging plant is helping community growth.
April 2018
2017 Product of the Year winners, retrofitting a press, IMTS and Hannover Messe preview, natural refrigerants, testing steam traps
June 2018
Machine learning, produced water benefits, programming cavity pumps
April 2018
ROVs, rigs, and the real time; wellsite valve manifolds; AI on a chip; analytics use for pipelines
February 2018
Focus on power systems, process safety, electrical and power systems, edge computing in the oil & gas industry
Spring 2018
Burners for heat-treating furnaces, CHP, dryers, gas humidification, and more
April 2018
Implementing a DCS, stepper motors, intelligent motion control, remote monitoring of irrigation systems
February 2018
Setting internal automation standards

Annual Salary Survey

After two years of economic concerns, manufacturing leaders once again have homed in on the single biggest issue facing their operations:

It's the workers—or more specifically, the lack of workers.

The 2017 Plant Engineering Salary Survey looks at not just what plant managers make, but what they think. As they look across their plants today, plant managers say they don’t have the operational depth to take on the new technologies and new challenges of global manufacturing.

Read more: 2017 Salary Survey

The Maintenance and Reliability Coach's blog
Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
One Voice for Manufacturing
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Maintenance and Reliability Professionals Blog
The Society for Maintenance and Reliability Professionals an organization devoted...
Machine Safety
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
Research Analyst Blog
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Marshall on Maintenance
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
Lachance on CMMS
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
Electrical Safety Update
This digital report explains how plant engineers need to take greater care when it comes to electrical safety incidents on the plant floor.
Maintenance & Safety
The maintenance journey has been a long, slow trek for most manufacturers and has gone from preventive maintenance to predictive maintenance.
IIoT: Machines, Equipment, & Asset Management
Articles in this digital report highlight technologies that enable Industrial Internet of Things, IIoT-related products and strategies.
Randy Steele
Maintenance Manager; California Oils Corp.
Matthew J. Woo, PE, RCDD, LEED AP BD+C
Associate, Electrical Engineering; Wood Harbinger
Randy Oliver
Control Systems Engineer; Robert Bosch Corp.
Data Centers: Impacts of Climate and Cooling Technology
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
Safety First: Arc Flash 101
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
Critical Power: Hospital Electrical Systems
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me