"User Comfort & Safety is our motto"
G. D. International
Manufacturer of readymade garments, industrial workwear & specialists in PPE
Class 1 4 kA
Class 2 7 kA
The arc length is set in 500 ms in the two types of testing.
With the method of the test box for materials, the amount of thermal energy transferred by the flat materials is measured during and after the exposure to a specified arc. The behavior of the material under this procedure is determined from the amount of heat transferred through the test tubes and other thermal parameters.The thermal flux of the exposure and the transferred by the test tube are measured with copper calorimeters. The extent to which the temperature of the calorimeters increases is a direct measure of the thermal energy received. The heat transfer data are used to assess the onset of a second degree burn using the Stoll curve. The response of the material should be subject to a supplementary description recording the observed effects of exposure to the electric arc on the test tubes
Acceptance criteria : The test shall be considered satisfactory if:
- The material of the garment has successfully passed the test of the test box, according to the criteria described in the previous table.
- The garment subjected to the test box method satisfies the criteria defined in the following table:
EN 61482 : 1-2 : Protective Clothings against the Thermal Hazards of an Electric Arc