Did your facility recently have an “incident energy analysis” / “arc flash survey” / “70E sticker program” completed? After every piece of switchgear, MCC and panel board has been evaluated, many electrical managers are surprised at the number of applications that receive a “Danger” sticker: incident energy levels exceed available PPE, and therefore energized work is no longer permitted on applications with these ratings.

Of course the prime directive of NFPA 70E, (OSHA 1910) and other similar standards like CSA Z462 is to leave the equipment closed or in an “electrically safe condition.” But how can a company perform certain diagnostic operations such as IR scans while equipment is energized? Some options are:

· IR windows and other closed-panel inspection methods eliminate the hazardous tasks of opening the enclosure. Since the enclosure remains closed, and the equipment remains in normal operating conditions, inspections are safer, quicker and compliant with 70E directives regardless of incident energy calculations.

· Current limiting fuses might help to limit the available fault current, thereby  reducing the incident energy of a potential arc flash event.

· High-speed relays could reduce the number of cycles it takes to clear the fault, again reducing incident energy.

Work safe.  Test before touch. Question everything.

Tip Provided By: Tim Rohrer, President of Exiscan

exiscan logo

Upcoming Events

August 9 - August 11 2022

MaximoWorld 2022

View all Events
banner
80% of Reliabilityweb.com newsletter subscribers report finding something used to improve their jobs on a regular basis.
Subscribers get exclusive content. Just released...MRO Best Practices Special Report - a $399 value!
DOWNLOAD NOW
Optimizing Value From Physical Assets

There are ever-increasing opportunities to create new and sustainable value in asset-intensive organizations through enhanced use of technology.

Conducting Asset Criticality Assessment for Better Maintenance Strategy and Techniques

Conducting an asset criticality assessment (ACA) is the first step in maintaining the assets properly. This article addresses the best maintenance strategy for assets by using ACA techniques.

Harmonizing PMs

Maintenance reliability is, of course, an essential part of any successful business that wants to remain successful. It includes the three PMs: predictive, preventive and proactive maintenance.

How an Edge IoT Platform Increases Efficiency, Availability and Productivity

Within four years, more than 30 per cent of businesses and organizations will include edge computing in their cloud deployments to address bandwidth bottlenecks, reduce latency, and process data for decision support in real-time.

MaximoWorld 2022

The world's largest conference for IBM Maximo users, IBM Executives, IBM Maximo Partners and Services with Uptime Elements Reliability Framework and Asset Management System is being held Aug 8-11, 2022

6 Signs Your Maintenance Team Needs to Improve Its Safety Culture

When it comes to people and safety in industrial plants, maintenance teams are the ones who are most often in the line of fire and at risk for injury or death.

Making Asset Management Decisions: Caught Between the Push and the Pull

Most senior executives spend years climbing through the operational ranks. In the operational ranks, many transactional decisions are required each day.

Assume the Decision Maker Is Not Stupid to Make Your Communication More Powerful

Many make allowances for decision makers, saying some are “faking it until they make it.” However, this is the wrong default position to take when communicating with decision makers.

Ultrasound for Condition Monitoring and Acoustic Lubrication for Condition-Based Maintenance

With all the hype about acoustic lubrication instruments, you would think these instruments, once turned on, would do the job for you. Far from it!

Maintenance Costs as a Percent of Asset Replacement Value: A Useful Measure?

Someone recently asked for a benchmark for maintenance costs (MC) as a percent of asset replacement value (ARV) for chemical plants, or MC/ARV%.