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Arc Flame Retardant Standards and Knowledge

2015-08-17 09:01 | writer: admin

Arc standard
The effect of the minimum performance specification for industrial fire protective clothing description. Test method of each standard were used to validate the performance, and the definition of each test a minimum or maximum performance parameters in accordance with the standard test. The thermal test Webpage access company to get more specific test on NOMEX from protective clothing for information.
Standard Performance Specification for the textile material - ASTM F1506-94 exposed to transient arc and related thermal hazard of electrical workers wearing protective clothing
Standard Specification for waterproof clothing - ASTM F1891-98 arc and flame protection
NFPA 70E employee workplace electrical safety requirements specification version 2000
Standard Performance Specification for the textile materials exposed to transient arc and related thermal hazard of electrical workers wearing protective clothing
This specification provides a protective electrical workers and other operations in charged area in the vicinity of the staff wearing clothing performance requirements. Unless the thermodynamic requirements, the standard also requires the fabric with fire resistance; namely, fabric fire or leave the ignition source after the fabric does not continue to burn. The use of FTM 5903.1 "vertical flame test" (continued flame burnt up to 2 seconds, maximum length is 6 inches) to determine the fire resistance. The standard currently being revised, will include reports arc level requirements. Arc grade according to ASTM F1959 "thermal protective performance test" the determination of the arc thermal protective performance value (ATPV) or arc arc breaking value (EBT).
Standard Specification for waterproof clothes ASTM F1891 anti arc and refractory
The standard for refractories used in waterproof raincoat in. Coated fabrics or laminated fabric can be used for making clothes. The fabric must be approved by the ASTM D-6413 "vertical flame test" (continued flame burnt up to 2 seconds, maximum length is 6 inches) was measured with a fire resistance. The standard also requires a report arc thermal protective performance value (ATPV), and in accordance with the requirements of ASTM F1959 "thermodynamic characteristic experiment" determination of the minimum arc arc interruption threshold (EBT) was 5. The standard currently being revised, will include more suitable for coating fabric flammability test.
NFPA 70E employee workplace electrical safety requirements specification version 2000
NFPA 70E describes the electrical hazards threat exists in the workplace. NFPA 70E requires employers that prone electrical contact staff use the file has been identified in the staff will work in the breakdown within the boundary protection.
NFPA is engaged in specific work according to the staff when the face and chest with potential arc source distance to define the electrical contact level according to law. Staff to use refractory protective clothing and personal protective equipment, according to the specific work prone electrical contact level, need to wear enough protection grade equipment.
Not relates to work in 70E work in 70E
- use transformer substation, residents or commercial buildings installation of conductive materials and other electrical equipment in industry
- connecting equipment and power supply
- install other outdoor conductive materials
In the boat, rail vehicles, aircraft, or in addition to the caravan and RV outside the car mounted equipment
Installation of equipment - in underground mines
Installation for vehicle running equipment, railway
Common - Communication under the control of the installation of communication equipment
Under the control of electric power equipment installation
Category NFPA 70E requirements
Mobile and visibility when employees wear fire, flame retardant or through processing of protective clothing, protective clothing will cover all flammable clothing, the wearer can move, good visibility.
Body protection
In any possible exposure to place employees arc flame should wear fire protective clothing.
- the protective clothing can be prepared as a shirt and pants, or Jumpsuit protective clothing, or conjoined jacket and trousers, or Jumpsuit protective suits and jackets in order to achieve the greatest degree of protection.
The outer wear in FR clothing jackets, waterproof clothing such as outer clothing also need to use refractory materials
The bottom of the bottom skin wear fabric (underwear) should avoid the use of fusion fiber. In the bottom will not fire, clothes are not in contact arc and related hazards in the process of heat melt and drip can provide additional protection.
Coverage protective clothing should be as close as possible to completely cover the potential exposure to hazardous parts.
Care and maintenance
All personal protective equipment should be maintained in the health and credible conditions.
- usually private protective equipment and personal protective equipment in common use as to provide appropriate protection system.
As a hierarchical system, additional protection purposes can be used in FR and natural fiber clothing.
Hierarchical architecture, typical can include a shirt, a shirt and trousers and integrated protective clothing.
- specific work can use special protective equipment.

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