✕

Support 24/7
Text 215-766-5665

✕

Support 24/7
Text 215-766-5665

✕
✕

Support 24/7
Text 215-766-5665

✕

Support 24/7
Text 215-766-5665

✕
October 10, 2025
October 10, 2025

How to Layer Arc-Rated Clothing for 20-Cal Protection

When performing high-risk electrical work, it’s critical that your personal protective equipment (PPE) exceeds the potential incident energy of an arc flash associated with that task. For work that requires a category (CAT) 2 level of protection—defined by NFPA 70E as a calorie rating of 8–24 cal/cm²—layering arc-rated and flame […]
Do you like it?
Read more
October 4, 2024
October 4, 2024

Understanding AR/FR Garment Compliance vs. Protection

It may be surprising, but compliance and protection aren’t always synonymous – especially when it comes to arc-rated and flame resistant (AR/FR) garments. Put simply, compliance refers to what we must do to meet regulatory requirements, such as OSHA guidelines or what is outlined within standards like NFPA 70E or […]
Do you like it?
Read more
May 3, 2024
May 3, 2024

Wearing AR/FR Clothing: A Story of Survival and Protection

Arc-rated and flame resistant (AR / FR) clothing is indispensable for workers facing arc flash, flash fire, or combustible dust hazards due to their brief and directional nature. Unlike flammable clothing that can ignite and continue to burn, AR / FR garments prevent ignition and offer vital insulation against thermal […]
Do you like it?
Read more
May 19, 2023
May 19, 2023

What are the Best Resources for Electrical Safety?

May is National Electrical Safety Month. Each year, electrically related incidents disrupt livelihoods and families due to injuries, deaths, and property losses. Currently, over 750,000 industrial electrical workers are not using proper protection. This number is even more alarming because NFPA 70E, Standard for Electrical Safety in the Workplace – […]
Do you like it?
Read more
February 1, 2023
February 1, 2023

What is a Stoll Curve?

As a woman-owned company, Tyndale is dedicated to celebrating and supporting women in the industry. Our popular Women in Power Series shines a light on the growing number of women working in the field today. But whether in the spotlight or behind the scenes, women have played an integral role […]
Do you like it?
Read more
January 6, 2023
January 6, 2023

Trending in 2022: Tyndale’s Top 5 Blogs & Videos

At Tyndale, arc-rated and flame resistant (AR / FR) clothing is our core competency, enabling us to leverage our expertise and 40+ years of experience to provide valuable educational resources to protect workers. Our industry-leading blog and videos provide in-depth educational content to answer technical questions and address common safety […]
Do you like it?
Read more
December 2, 2022
December 2, 2022

Arc Ratings for FR Clothing: What is the Difference Between ATPV and EBT?

To better understand arc ratings – what they are and the difference between the two ways they are measured – we define them below and link back to Tyndale’s Arc Week Season 3, which covers the science behind all things arc flash. What is an Arc Rating? Simply put, an […]
Do you like it?
Read more
September 1, 2022
September 1, 2022

Arc Week Season 3, Ep. 4: Who Wins in a Dog Fight? ATPV vs. EBT Explained

In Episode 3, we went behind the scenes at the arc flash testing lab, Kinectrics, to see great balls of fire, better known as arc flashes. There we demonstrated exactly what happens to flame resistant (FR) fabric when an arc flash takes place and covered how to determine the arc […]
Do you like it?
Read more
August 31, 2022
August 31, 2022

Arc Week Season 3, Ep. 3: Great Balls of Fire – Live at the Arc Ratings Lab

We’re taking you on a journey to spend a day in the arc ratings lab, and what better way to do it than to take you to the facility that makes it all happen? Kinectrics is the world’s leader in life cycle management for the electric utility industry, and where […]
Do you like it?
Read more
March 15, 2022
March 15, 2022

Proud to Protect Canada – Episode 3: What is CSA Z462?

In Episode 2 of our Proud to Protect Canada series, Tyndale’s Canada Sales Director, Paul Castelli, and VP of Technical, Scott Margolin, answer the question, what is an arc flash. Beyond the definition, they discussed what causes an arc flash, the dangers associated with an arc flash, and how to […]
Do you like it?
Read more
November 12, 2021
November 12, 2021

Can Arc Ratings Be Added to Calculate Protection?

Tyndale-made arc-rated and flame resistant (AR / FR) garments feature an external label to indicate the garment’s protective ratings. These ratings explain two critical pieces of information about your AR / FR clothing: The Calorie Rating (CAL) – the level of protection the garment delivers The PPE Category (CAT) –  […]
Do you like it?
Read more
August 20, 2021
August 20, 2021

Do Zippers and Buttons Factor into Ebt Ratings?

Thanks to everyone who submitted questions to be answered in our FR FAQ series. The question we’re answering today was submitted by Charlie S. from Pennsylvania, who asks: What effect do zippers and buttons have on arc ratings, specifically break open ratings? As you may know, there are two ways […]
Do you like it?
Read more
June 15, 2021
June 15, 2021

How It’s Tested: Episode 20 – ASTM F2621, Arc Flash Ensemble Testing

Before they’re offered for sale in the marketplace, arc-rated (AR) garments and Personal Protective Equipment (PPE) are tested individually to assess their performance and ensure they deliver the arc flash protection that’s needed to keep workers exposed to arc flash safe. But, if you’re involved in specifying and purchasing that […]
Do you like it?
Read more
June 8, 2021
June 8, 2021

How It’s Tested: Episode 19 – ASTM F2178, Arc-Rated Eye and Face Protection

If you work alongside the arc flash hazard, chances are you’re used to wearing a balaclava and face shield – particularly when you’re completing PPE category (CAT) 1 and CAT 2 work. Have you ever wondered how these items are tested, or what standard ensures these items – as well […]
Do you like it?
Read more
June 1, 2021
June 1, 2021

What is Tyndale Doing to Further Electrical Safety?

May was National Electrical Safety month and today marks the beginning of National Safety Council’s Safety Month, but at Tyndale protecting workers from arc flash is at the heart of what we do every moment of every day. Beyond providing lifesaving arc-rated (AR) clothing and PPE to thousands of electricians, […]
Do you like it?
Read more
April 6, 2021
April 6, 2021

How It’s Tested: Episode 13 – Why ASTM F1891 is the Critical Compliance Criteria for AR Rainwear

ASTM F1891 is the Standard Specification for Arc rated (AR) and Flame Resistant (FR) Rainwear – and you don’t want to confuse it with ASTM F 1506 (AR Clothing) or D6413 (Vertical Flame). ASTM F1891 provides test methods, performance criteria and purchasing information for rainwear designed to protect workers from […]
Do you like it?
Read more
March 26, 2021
March 26, 2021

Does a Non-FR Base Layer Count Toward Arc Rating?

Questioning whether or not your non-flame resistant (non-FR base layer counts towards a system arc rating? This blog post gives you the answer and helps you determine the proper garments to wear as a base layer when calculating a layered arc rating. The answer is no – a non-FR base […]
Do you like it?
Read more
February 23, 2021
February 23, 2021

How It’s Tested: Episode 7 – ASTM F1959, The Arc Rating Test

As we learned in previous How It’s Tested episodes, ASTM F1506 establishes minimum performance requirements for flame resistance, arc rating, and mechanical durability, using two main tests and a series of smaller test to identify fabrics that comply. In this post, we’re concentrating on one of the two main tests […]
Do you like it?
Read more
February 16, 2021
February 16, 2021

How It’s Tested: Episode 6 – ASTM F2621, The Half Manikin Test

Welcome to a new episode in our How It’s Tested series. Last week, we put a lens on the ASTM F1506 mechanical tests which are used to ensure fabric has the strength it needs to reliably deliver the arc flash protection you trust with your life. Today’s episode focuses on […]
Do you like it?
Read more
February 2, 2021
February 2, 2021

How It’s Tested: Episode 4 – ASTM F1506, Part 1: The Big Two Tests for Arc Protection

One of the main standards for arc flash-protective clothing is ASTM F1506, Standard Performance Specification for Flame Resistant and Electric Arc Rated Protective Clothing Worn by Workers Exposed to Flames and Electric Arcs. But don’t be distracted by its long formal name. Known more commonly as “the Arc Standard” or […]
Do you like it?
Read more
August 16, 2019
August 16, 2019

How is an Arc Rating Derived?

Wearing arc-rated and flame resistant (AR / FR) clothing is critical in the event of an arc flash because it will not ignite and continue to burn, which is what causes most of the catastrophic injuries and fatalities. AR / FR clothing also performs an important second function: insulating you against the […]
Do you like it?
Read more
July 11, 2019
How to Read an Arc Flash Report
July 11, 2019

How to Read an Arc Rating Report

When you face arc flash hazards on the job, it’s essential to choose arc rated, flame resistant garments that offer you sufficient protection against the risk. In most cases, you use an Arc Rating or CAT level to determine which garments will protect you from the level of hazard present […]
Do you like it?
Read more
May 14, 2019
May 14, 2019

What Does ASTM 1506 Compliant Really Mean?

ASTM 1506, Standard Performance Specification for Flame Resistant and Electric Arc Rated Protective Clothing Worn by Workers Exposed to Flames and Electric Arcs, is the governing ASTM standard for flame resistant clothing for protection from arc flash. But what does 1506 compliance actually mean? Fabrics must pass two main requirements […]
Do you like it?
Read more
November 5, 2018
Salisbury 40cal Arc Flash Suit
November 5, 2018

Tyndale Now Offers Salisbury’s Premium Light Weight HRC 4 Arc Flash Suit

When working in hot, high-voltage environments, you used to have to sacrifice comfort to ensure you were fully protected. Now Salisbury by Honeywell offers a 40 cal/cm2 arc flash suit that’s lighter than you ever imagined possible. In fact, according to Salisbury their newest HRC 4 suit is the lightest […]
Do you like it?
Read more
✕

Support 24/7
Text 215-766-5665