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After your Arc Flash hazard analysis and labeling of your equipment, the purchasing of your  personal protective equipment (PPE)  can be the most difficult (and expensive) part of your electrical safety program. There are a few “other” items besides price to consider when purchasing your  Arc Flash PPE .  Let’s start with the basics. All arc flash related equipment have minimum requirements they must meet. The NFPA 70E 2009 edition Table 130.7(C) (8) Standards on Protective Equipment list all of the applicable ANSI and ASTM requirements for PPE from head to toe.  These requirements are for ensuring that the equipment is going to protect you as intended. Assuming you start with those standards as a bare minimum when purchasing, I have included several things that can not only help get the most value for the money you are spending, but also give your employees more comfort when wearing the necessary equipment. Fit: Here we are talking about adjusting to girth more...

HRC is a 2004 NFPA 70E rating of exposure levels for particular types of equipment. The values range from zero to four, with a zero HRC not requiring any ATPV-rated PPE. The minimum ATPV rating for Categories One through Four are as follows: Category One: five calories per square centimeter Category Two: eight calories per square centimeter Category Three: 25 calories per square centimeter Category Four: 40 calories per square centimeter The following chart illustrates the five HRC levels with corresponding clothing, layer requirements and minimum arc ratings. Overclothing: Any arc-flash rated clothing with a HAF of less that 70 percent is considered overclothing. This means that the  flash-rated clothing  must be worn over a suitable undergarment to protect the wearer. Typically, the undergarments in this situation would be 100 percent cotton. Other undergarment fabrics may be required in special situations. What is the Hazard Risk Category (HRC) of NFPA 70E? -C&G Saf...

100 Percent Cotton: It was not all that long ago that plain old cotton was considered the appropriate  protective clothing  when an electrical arc exposure was present. The thinking was that cotton provided much better protection than polyester, nylon, acetate, and the like. This is true. However, along came products that soon made untreated cotton an undesirable fabric for these situations. Flame-Resistant Treated 100 Percent Cotton: One such fabric available today is marketed under the trade name "Indura." This fabric is made by Westex and is guaranteed to maintain flame resistant performance throughout the life of the garment. This fabric has an expected wear life of 50 to 75 home launderings. This means that five sets of shirts and pants, each worn once per week, will last 12 to16 months in the range of light- to severe-use conditions. In Indura-engineered fabrics, the flame resistant chemical impregnated on the cotton fiber core acts as a catalyst promoting the charring ...

In custom work clothes, many companies do not know which fabric to choose. Overalls manufacturers recommended fabrics, purchasing companies do not know what the characteristics of this fabric is not suitable for their own company. For these, we have summed up some commonly used commonweal fabrics, as well as the characteristics of fabrics for your reference. First, uniform, professional wear several kinds of fabrics and features commonly used: Spinning wool: it neat, feel smooth, rich and elastic, straight lines full. Appropriate sewing suits, Zhongshan suit, women's shirt. Pure wool: Fabric formation, soft and natural, color week, less defects, feel flexible and delicate. Tighten the fabric by hand, letting go quickly restored to its original shape, and the crease is not obvious. Wool polyester: the lack of pure wool fabric soft feeling, fabric formation and not easy to wrinkle, and with the polyester content increased significantly. Flexibility is better, but feel less than pure ...

1, pure cotton sand card: high density of the product line, the introduction of tissue fabrics, clear lines, Kong Gu clearly, the light cloth, good quality, suitable for engineering jackets, Siamese clothing, casual wear, bags, work gloves. 2, polyester card: Fabrics feel more than uniforms have texture, drape and support are very strong, strength and wear resistance are very good, shrinkage is minimal, made of the product appearance is not easy to aliasing, and affordable, durable Good performance. 3, cotton canvas: is a thicker plain plain cloth, high density, feel thick, textured clear, fast and wear-resistant, is a good material for jackets. 4, Poplin: all kinds of poplin fabrics are clean and smooth cloth, detailed texture, grain full, smooth and shiny gloss, soft touch features such as waxy, as summer hand clothing material. 5, dust and anti-static: This fabric is strong and durable, soft and comfortable, hygroscopic breathable, can be processed into a variety of high-grade anti-...

IEEE 1584-2002 is titled “IEEE Guide for Performing Arc-Flash Hazard Calculations,” and provides a methodology for calculating prospective arc flash hazards. Based on test data, the IEEE 1584 committee developed empirical equations to calculate arc flash incident energy for AC systems. It is important to understand that the IEEE 1584 equations are valid only for the conditions for which test data was evaluated. This is a very professional algorithm, and if you don't know how much arc danger your employees may face, C&G Safety’ s experts are very happy to help you. Arc Flash Calculation and FPA Methods -C : Arc Flash Calculation and FPA Methods

Hazard Risk Category (HRC) was a term used by NFPA 70E to refer to levels of protection required for various job applications. In the updated 2015 NFPA 70E Standard this term was changed to “Arc Flash PPE” and HRC was removed from the standard. One thing that hasn’t changed is our use of  HRC for arc resistant garments . We will continue to use this familiar term to assist our customers with quickly identifying what level of protection our  PPE clothing  meets. ARC FLASH REQUIRED PPE MINIMUM HRC LEVEL 1 4 cal/cm2 HRC LEVEL 2 8 cal/cm2 HRC LEVEL 3 28 cal/cm2 HRC LEVEL 4 40 cal/cm2 More psl vist： ARC FLASH PPE GARMENTS -C&G Safety : ARC FLASH PPE GARMENTS