DIN EN 61482-1-2:2015-08

This standard describes procedures to test material and garments intended for use in heat and flame-resistant clothing for workers if there is an electric arc hazard. In contrast to the test procedures in IEC 61482-1-1, a directed and constrained electric arc in a test circuit is used to classify material and clothing in two defined arc protection classes. The following modifications have been made with respect to DIN EN 61482-1-2 (VDE 0682-306-1-2):2007-12: a) new mean values of main control parameters arc energy and incident energy based on an extended statistical database; b) reduction of the validity ranges of the main control parameters from double to single standard deviation; c) determination of the incident energy by averaging the two sensor values of a test (instead of considering each single sensor value); d) information on precision (repeatability and reproducibility) of the test method; e) clarification of the scope; f) selection of the arc protection classes (test classes) by the amount of the arc energy and incident energy instead of the short-circuit current; g) permitting electrode design without bores; h) recommendations for the heat-resistant materials to be used for the test box and test plate; i) clarification of the conditions for cleaning and replacing the test box; j) indication of the difference values ΔE_i of the transmitted energy values to the Stoll limit value at T_max and the information if the heat curves of transmitted incident energy exceed the target curve during the evaluation period in the test report; k) preconditioning of the samples according to the manufacturer's instructions. The responsible committee is DKE/UK 214.3 "Ausrüstungen und Geräte zum Arbeiten unter Spannung; Körperschutzmittel und schmiegbare Schutzvorrichtungen" ("Equipment and apparatus for work on electrically energized system; personnel protective equipment and moulded protective devices") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.