IEC 61482-2 Tests for Protective Clothing Against Thermal Hazards from Electric Arc

Protective Clothing Tests

IEC 61482-2 Tests for Protective Clothing Against Thermal Hazards from Electric Arc

Clothing certified to IEC 61482-2 provides protection against thermal hazards associated with electric arcs. During arc blast, clothing can be exposed to flames, radiation and metal shrapnel from the electrodes. That's why it's important to wear the right clothes. Your clothing needs to provide adequate insulation to protect against all types of flames and metal shrapnel, to protect you against intense heat and the risk of second-degree burns. For optimum protection, your workwear should cover your entire body. Jackets and trousers need to be worn with other pieces of protective equipment, such as face shields, safety gloves, and safety shoes to ensure the right level of protection. You can also use multiple layers to further increase your protection level.

IEC 61482-2 Tests for Protective Clothing Against Thermal Hazards from Electric Arc

A box test involves subjecting both a fabric sample and a garment made of the same fabric to an electric arc at body height to simulate a real accident situation. The box test - like the electric arc test - tests thermal insulation, the risk of burns (second-degree burns), and the functionality of the suit after exposure to an electric arc. This test method does not cover protection against electric shock.

When box testing is used, certified safety clothing is classified as either class 1 (4 kA) or class 2 (7 kA), with class two offering the best level of protection. The garments are classified according to EN 61482-1-2 (class 1 or 2).

IEC 61482-2 arc rating - class 1 or 2 - evaluated in a test with a limited and directional arc. In the test, the electric arc is struck against a box in which the material or clothing is placed. The result is compared to the Stoll curve, a diagram that shows when you are at risk of second-degree burns in the event of an electric arc accident. Test criteria: The material must not melt inside, the afterflame must be extinguished in 5 seconds or less, and a hole larger than 5 mm cannot be created in any direction. The result is confirmed or disapproved.

Eurolab provides IEC 61482-2 testing services to businesses within the scope of protective clothing tests.

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