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Arc Flash and Electrical Work Resources

Arc Flash Label Poster

Electrical Work Permit
Voltage Rated Gloves
Rozel Trifold Brochure
Electrical Safety Risk Assessment Procedure
Electrical Job Briefing
Quick Wins to Improve Electrical Safety
Annual Employee Electrical Safety Audit

Electrical Safety Industry Standards

NFPA 70E

Standard for Electrical Safety in the Workplace
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NFPA 70B

Recommended Practice for Electrical Equipment Maintenance
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Case Studies and Electrical Safety Advice

Prevention of Arc Flash Accidents

Arc flash accidents can be highly dangerous and can cause severe burns, electrocution, and even death. Therefore, to ensure workplace safety, it is essential to take steps to prevent arc flash...

Arc Flash Assessment Basics

What is an Arc Flash? An arc flash is usually caused by human error or a fault in the electrical system which creates a short circuit. When a fault occurs in the system, the electrical energy is...

Just de-energizing can get you hurt

Tragic Event That Could Have Been Avoided  U.S. Department of Labor investigators determined the 33-year-old employee of an Alabama Cabinet company was electrocuted when he came into contact with a...

Why Perform an Arc Flash Evaluation?

Consider this comparison: Seatbelts used to be optional but are now enforced and regular practice; calculating arc flash values were once impossible but are now saving lives.  Once standardized...

Oil Testing Can Cause Transformer Failures

Power distribution and other types of transformers can have their internal windings and core submersed in oil. The oil is passed through a radiator mounted to the outside of the transformer...

Category Method vs Incident Energy Calculations

There's a disconnect, or rather an improper connection that workers make between categories and values calculated when using the incident energy method. A worker should not correlate categories with...

How To Read An Arc Flash Label

Arc Flash/shock hazard warning labels are specifically designed to help protect qualified workers who have to examine, adjust, service, or maintain electrical equipment while energized. It is...

How many labels should go on my equipment?

We have discussed where labels should be placed (see this link).  Now its time to discuss our methodology behind applying appropriate labels as a result of calculations and best practices. Typically...

Understanding OSHA Deenergizing Rules

Fatalities that are Easily Preventable I was recently reviewing OSHA accident investigation data from 2020, In one case an employee was pulling wire into an electrical cabinet. At some point, the...

Can Electrical Workers Wear Steel toes?

Can Electricians Wear Steel Toe Shoes? A question we often receive when performing the PPE section of our electrical safety training has to do with steel toes shoes or boots. Can Electricians Wear...

What should an electrical hazard label look like?

NFPA 70E doesn't offer a lot of guidance for what a label should look like.  They give us a description of the types of equipment which are to receive a label and a minimum amount of information...

Obvious Areas for Concern – Arc Flash Hazards

There are some obvious areas that typically result with high arc flash hazards.  When we walk through a facility for the first time, we will notice these areas and immediately realize that we may...

Frequently Asked Questions

Q1. Is PPE required when working on 120-volt circuits? NFPA 70E ® 130.4(F)(1) states the qualified worker’s hands must be insulated or the energized parts must be guarded before they can enter the...

Is PPE required when working on 120-volt circuits?

One of the more common tasks for an industrial electrician is to troubleshoot energized terminal points in 120-volt control panels. When machines stop running control circuits can be the first place...

Rozel Offsite Evaluations

Qualifications for Offsite Evaluations An Offsite evaluation means that the customer performs the data collection instead of Rozel sending a technician, then Rozel mails labels for the customer to...

IMPORTANT UPDATE IN NFPA 70E 2021 EDITION

Operating a circuit breaker or switch for the first time after installation or completion of maintenance in equipment - Is now identified as "Yes" for requiring additional protective measures (i.e....

The 2021 Edition of NFPA 70E

NFPA 70E Revised Edition For 2021 The National Fire Protection Association (NFPA) updates their Electrical Safety in the Workplace standard NFPA 70E® every 3 years. Since the last edition was...

Taking Care of Your Electrical PPE

NFPA70E article 130.7(B) Care of Equipment discusses the basic requirements for the care and maintenance of electrical personal protective equipment. Because this equipment may save a life one day...

Overhead Power Line Safety

Every year many workers are injured or electrocuted due to direct or indirect contact with overhead power lines. In fact, over 40% of all U.S. electrical fatalities involve contact with overhead...

Why do I need an Arc Flash Evaluation?

Here is a little background about the guidelines we work with. They will help explain why you need an evaluation: Rozel's service proposals are written in accordance with the requirements of the...

Arc Flash gear and Covid-19

Arc flash gear and Covid-19 The Covid-19 pandemic has created some new challenges for all of us. One of the more complicated problems for electrical workers maybe how to stay safe from the dual...

Electric shocks can lead to deadly falls

I recently read a news story where a worker at a medical center suffered from a fatal fall. The worker was changing a fluorescent light ballast with the power on was shocked and fell to his death....

What happens while technicians are on-site?

The date has been set and one or two of our technicians will soon be at your door. What happens when they arrive? Kick-Off First, as required by NFPA 70E, we’ll have a short safety meeting.  During...

Should Transformers be Labeled?

As an electrical technician for Rozel I have had hundreds of conversations with Plant managers, safety directors, and maintenance personnel about the labeling process once the evaluation is...

Live Online Training

Attend LIVE Instructor Led Electrical Safety Training By Entering Our Web-Based Classroom Rozel is now offering our great instructor-led classroom training via a web link. This is the perfect...

Maximum Available Fault Current… What is it?

Maximum Available Fault Current... What is it? Have you ever noticed "Interrupting Rating" on the front of a breaker? Take a look at the highlighted area of the 60A breaker picture below: If this...

Are Leather Protectors Required?

Voltage rated gloves must be used when performing work on exposed energized conductors greater than 50V but do you have to wear leather protectors? The answer is made clear by OSHA...

Arc Flash Size

What causes an arc flash to be big or small? We calculate arc flash "size" by following the equations described in IEEE 1584 2018. These equations are based on real life testing and measuring of arc...

Different Fault Current Values in the Same Panel

Sometimes components in our reports might indicate a higher fault current than what is calculated at the bus in which the components are attached to. Below is a high level explanation as to why this...

Basics of Arc Rated Clothing Layering

Wearing arc rated clothing over the top of other arc rated clothing is commonly referred to as layering. Layering can be an effective way of increasing protection from arc flash hazards while...

When 500V gloves are not good enough for 480V work

Rozel recommends that electrical workers wear class 0 (1,000-volt max use) rubber insulating gloves when working within the restricted approach boundary of exposed energized electrical conductors or...

Are you as Safe at Home as you are at work?

Being Safe at Home is just as important as when you're at work. Are you renovating your house?  Maybe you are helping your neighbor troubleshoot an outlet that doesn't work.  Although OSHA...

Oil Field Electrical Safety

The one thing that pops into my mind when I hear someone talking about American being great is our ability to develop technology to overcome some of our most difficult problems. A great example...

6 Steps to NFPA 70E Compliance

The following excerpt is from an article that was published in the April edition of Professional Safety magazine the journal of the American Society of Safety Engineers. To download the...

How often should I test my voltage rated gloves?

"How often should I test my voltage rated gloves?" This is a question that frequently comes up during our electrical safety training classes. Misinterpreting the rules requiring dielectric testing...

A Mouse Took Down My Factory

A mouse took down my factory! Can you believe it?  Preventative maintenance increases safety and understanding your equipment can help keep you safe. Preventative maintenance can help ensure...

“Arc Flash Fuses”

A potential customer called into our engineering department one day from the middle of Iowa.  “I was just told by a fuse salesman that if I buy his arc flash fuses that I don’t have to worry...

Holding Contractors Accountable

Rozel trains your employees how to work on electrical equipment safely, but what about your contractors?  You can’t train your contractors and you can’t always watch them but you can hold them...

Catastrophe Avoided

We conducted an arc flash evaluation on a factory, almost a million square feet and nine main transformers supplying up to 30MVA of power! The final report we issued identified large potential...

6 Critical Steps for a Safe Lock and Tag Process

When working on or near electrical equipment, the most effective means to keep workers safe is to open the disconnect switch and then apply a lock and tag. By performing this simple task, we have...

Pre-Job Briefs head off disasters

We've all heard the old saying, "An ounce of prevention is worth a pound of cure". I happen to be a big believer in this statement. It is one that will serve us well if we will apply it. The...

Do Welders need electrical safety training? 

I recently had a great question from one of my clients in Northeast, Ohio. Bob asked me if he needed to send his arc welding crew to the upcoming NFPA 70E based electrical safety training that I...

Need new work boots? Look for the EH Rating

A simple way to give you or your employees an extra layer of shock protection is to have them wear electrical hazard (EH) rated shoes or work boots EH shoes or work boots offer shock protection from...

Don’t let your meter blow up in your hand

During a recent training class, a student shared a story that is all too common. His meter blew-up in his hand. There can be many reasons for this to happen but one of the most prevalent is...

Tips for laundering your electrical safety gear

When teaching electrical safety classes I always seem to get the same question, “Can I launder my own electrical safety gear”? In my lesson plan I discuss this subject in great detail and advises...

Safety Made Simple With a Proving Unit

NFPA 70E 120.5(7) Requires test instruments be verified as working satisfactorily on any know live source prior to and after the verification of an absence of voltage. Unverified voltmeters can be...

Noncontact Voltage Detector Safety

I recently saw an electrician using a noncontact type voltage detector to verify the absence of voltage while replacing ballasts in an office building. He was standing on a ladder and waving the...

Arc flash gloves: insulated vs arc rated gloves

During a recent training session, I had a several questions concerning gloves for arc flash protection. I feel like it's important to make a quick point with hopes of clarifying a potentially...