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To calculate likely incident energy from a switchboard is time consuming, onerous, and technical. Variables include voltage, current, fault current, switchboard materials, switchboard opening dimensions and much more. Australian Standards acknowledges this, by virtue of AS4836, which gives a layman, conservative approach to choosing arc flash equipment in table 9.1. It is still always recommended … Read more
What is IEE1584? IEEE1584 is the industry accepted ‘Guide for Performing Arc-Flash Hazard Calculations’. This guide provides mathematical models for designers and facility operators to apply in determining the arc-flash hazard distance and the incident energy to which workers could be exposed during their work on or near electrical equipment. What is NFPA70E? The National … Read more
What on earth is an Arc Flash, and how do I choose the right PPE? Arc Flash clothing and PPE is not an easy product to select. Whilst most electrical PPE (insulated gloves, mats, sleeves) is chosen based on working voltage, Arc Flash is not. Arc flash calculations are complex, time consuming, costly and usually performed … Read more
One of the key contributing factors in many electrical safety incidents is not wearing electrical insulated gloves. Usually an investigation will reveal one of three reasons behind the lack of gloves Number #1 is a lockout/tag out issue, a topic for another day. #2 is a culture issue that is too deep for a short … Read more
On a regular basis, we have clients ask us why they need to wear Electrical Safety PPE when they do not work “live”. It is a fair enough question and the answer is quite simple. Until a technician has tested to ensure the switchboard or piece of equipment is “dead” or “not live”, the untested … Read more
When it comes to Arc Flash protection, Volt Safety recommends, the use of Inherent FR Fabric. Inherent Fabrics such as DuPont Protera; Parvotex, Lenzing and Nomex do not lose their FR properties. Fabrics that are treated with FR sprays or have FR thread woven into a cotton base, lose their FR properties over time and … Read more