The V-Gard 950 Class 2 safety helmet has been developed for electrical activities requiring demanding arc flash protection up to 7 kA. This balanced and lightweight unvented electrician ˜s safety Helmet made of ABS for strength and lateral crush protection (LD option) Modern, dynamic with sports styled shell 6-point Fas-Trac® III ratchet suspension with premium washable and replaceable sweatband Ratchet offers smooth rotation Balance and stability with a lower nape strap Low profile (patented visor mechanism which minimises helmet shell size) GS-ET-29 Class 2 (7kA) light blue integrated faceshield with light transmittance ‰¥ 75%, protecting against impact, chemical splash, UV radiation, molten metal splash and electric arc Protective foam at the top of the faceshield for an enhanced seal Premium anti-fog/anti-scratch coating faceshield fits over all corrective or safety glasses Reliable one-handed smooth movement, even gloved 2 faceshield positions (up or completely down) Unique extended ear and neck flaps fitted, ensuring protection against arc flash up to 7kA; 2 positions: working or stand-by Channel around perimeter of the helmet diverts rain and debris from user Complete with 4-point chinstrap for better helmet retention Protection against molten metal (MM option) Electrically insulating helmet meeting
EN 397 440 V AC &
EN 50365 1000 V AC Anti-static assembly; ELECTROSTATIC-INERIS certified for use in ATEX/explosive environments Helmet delivered in a protective reusable storage bag MSA Reference: GVF1A-C0AA00I-000
An arc flash is a sudden release of electrical energy that occurs when current jumps across a gap between two conductors or from a conductor to a ground. The arc flash generates an intense burst of heat and light that can cause serious injuries, damage to equipment, and fires.
Arc flashes can occur in a wide range of electrical systems and equipment, including switchgear, transformers, motors, and other high-voltage components. They can be caused by a variety of factors, including equipment failure, human error, or a short circuit.
The intense heat generated by an arc flash can cause severe burns, as well as ignite clothing and other materials in the surrounding area, leading to secondary fires. The bright light from the arc flash can also cause temporary or permanent vision damage.
To prevent arc flash incidents, it’s important to follow proper electrical safety procedures, including wearing appropriate personal protective equipment (PPE), de-energizing equipment before working on it, and maintaining a safe distance from energized equipment.
Understanding Arc Ratings and Calories
Now that you understand FR clothing is tested and given an arc rating, you know that the arc rating measures the amount of heat the flame resistant fabric blocks when exposed to electric arc. The arc rating is the number of calories that the garment is expected to “absorb” if exposed to an electric arc. Arc rating is, in essence, the level of protection provided to you, the wearer.
Calorie is the unit of measure of the heat energy of an arc flash and the protective level of FR clothing. The bigger the calorie number, the greater the heat energy level of arc flash and the greater the protective level of the clothing. You will be protected from an electric arc if your clothing has a higher calorie arc rating than the calories of heat generated by the arc.
While it does not matter if the fabric has an Ebt, ATPV and or ELIM value, it is important to pay attention to the calorie level the fabric can support* (as expressed in cal/cm2)