EN NORMS
EN 61482 -1-1
This part gives us the arc rating of the fabric by calculating the ATPV or EBT rating and plotting it through the stoll's curve. At least 7 shots are conducted to have a fair plotting result. This is similer to the ASTM F1959
EN 61482 -1-2
This part gives us the pass or fail result of the thermal risks of an arc which is passed for 5000ms.
It is further divided into 2 classses .
Class 1: 4000 A current is used .
Class 2: 7000 A current is used.
EN 61482-2
This part complies of the desingn & material requirment of an arc protective garments.
EN 1149-1 : Calculation of Surface resistivity of fabric for homogeneous,
Resistance should <10^9?
For heterogeneous,
Resistance <2.5 X 10^9?
10 mm distance between the conducting threads
EN 1149-2 Calculation of Electrical resistivity of fabric
same as per EN 1149 -1 but it is vertical resistance
EN 1149 - 3 :Calculation of induction charge decay
Shielding Factor >0.2
Decay Half Time <4 secs
EN 1149-4 : Under development for garment testing
EN 1149-5 Material & performance requirments of garments.
EN 14116 :Protection against flame-
Compulsory Requirments:
Test Parameter : Limited Flame spread (ISO 15025) - A1
Performance Levels :
Index 1 : No flame spread , no dripping ,no after glow (>2s)
Index 2:- Index 1 +No holes (>5mm)
Index 3: - Index 2 + No after burn (>2s)
EN 11612: Protective Clothing -- clothing to protect againdt heat and flame.
Compulsory Requirments:
Heat Resistance at 180 c (ISO 17493) :<5% shirnkage
Limited flame spread (ISO 15025) : A1, A2
Dimensional change due to washing (ISO 5077): <3%
Tensile Strength (ISO 13937 -1) :min.300 N in both direction
Tear Strength (ISO 13937-2) : min . 10 N in both direction
Seam Strength (ISO 13935-2) : MIN. 225N
pH value (ISO 3071 ) :MIN .3.5 & MAX 9.5
EN 11611 : Protective clothing for use in welding and allied process
Compulsory Requirments:
Limited flame spread (ISO 15025) - A1, A2
Dimensional change due to washing (ISO 5077) : MAX 3%
"Follow Arc Guard's simple washing instructions to maintain optimal performance and longevity of your safety equipment."