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.
“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 .
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Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.
There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.
But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.
Read more: 2015 Salary Survey