NEMA has new arc flash white paper

“Arc-Flash Analysis – Utility System Parameters Critical for Accurate PPE” is the title of a recently-released white paper from the Low Voltage Distribution Equipment section of NEMA. The report highlights the need for utility system parameters in the selection of personal protective equipment.

08/01/2006


“Arc-Flash Analysis %%MDASSML%% Utility System Parameters Critical for Accurate PPE” is the title of a recently-released white paper from the Low Voltage Distribution Equipment section of NEMA. The report highlights the need for utility system parameters in the selection of personal protective equipment.

“NFPA 70E, Electrical Standard for Safety in the Workplace,” defines arc flash hazard as: “a dangerous condition associated with the release of energy caused by an electric arc.” It is an explosion involving an electric arc operating at temperatures of several thousands degrees Celsius and a pressure wave created by the arc. Within a few milliseconds, the energy from this explosion can cause severe burns and loss of hearing, eyesight, taste and smell.

Changes to the 2002 National Electrical Code increased the awareness for the necessity to perform arc-flash analysis. In addition to adding requirements for markings to alert qualified persons on the potential of arc-flash hazards, NFPA 70E provides tables for determining the level of PPE. However, these tables apply only to specific parameters and a unique set of conditions. But performing an arc-flash analysis permits the selection of PPE suitable for each location.

The white paper identifies the parameters that the utilities should provide so that an accurate analysis can be conducted. By providing these parameters, and notifying users of system changes, utilities can assist users in ensuring that safe practices consistent with NFPA 70E are maintained.

To view “Arc-Flash Analysis %%MDASSML%% Utility System Parameters Critical for Accurate PPE,” visit plantengineering.com .





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Sensor-to-cloud interoperability; PID and digital control efficiency; Alarm management system design; Automotive industry advances
Make Big Data and Industrial Internet of Things work for you, 2017 Engineers' Choice Finalists, Avoid control design pitfalls, Managing IIoT processes
Engineering Leaders Under 40; System integration improving packaging operation; Process sensing; PID velocity; Cybersecurity and functional safety
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Flexible offshore fire protection; Big Data's impact on operations; Bridging the skills gap; Identifying security risks
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
click me