appnotes1
APPLICATION NOTES VOLUME 1
ARC FLASH BASICS & CURRENT SENSOR SAFETY
 

Understanding the dangers of arc flash

The effects of an arcing fault can be devastating. The intense thermal energy can cause severe burns in a fraction of a second.

One of the major causes of electrical burns and deaths to workers is ignition of non-fire rated clothing due to an arcing fault. A victim may never return to work or enjoy quality of life. Treatment costs can exceed $1,000,000 per case.

Other considerations include loss of life, potential litigation fees, loss of process, and potential fines.

What is arc flash?

Think of an arc flash as a short circuit through the air. In an arc flash incident, an enormous amount of concentrated radiant energy  explodes outward from electrical equipment.

The explosion creates pressure waves and a superheated ball of gas that can severely burn a worker’s body and melt metal. The pressure waves can also propel loose material like molten metal, pieces of damaged equipment, tools and other objects, through the air.

CLICK HERE TO REQUEST PRESET SENSOR SAMPLE

HOW SENVA SENSORS REDUCE DANGERS FROM ARC FLASH

Preset

Avoiding calibration in an energized enclosure is the best way to avoid arc flash when working with current sensors. Senva offers two models--Autoset and Preset—which both address this application issue. 

Autosettm self-calibrates after installation using Senva’s 24sensetm technology which adapts to system changes, such as air balancing.

Presettm uses a unique, patent pending, scaled adjustment which is set to the motor FLA.  It is priced comparably  to manually adjusted sensors, but saves up to $30 per point, because there is no need to return to the site to calibrate.

SenvaTM Inc. - - Portland, Oregon - - www.senvainc.com - - 1-866-660-8664
Copyright Senva Inc.   All rights reserved.  Application notes are suggestions only and not material safety or installation instructions.