Gives the requirements for one type of heat-shrinkable, flame retarded polyolefin sleeving with a temperature index of 135 and a nominal shrink ratio of 3:1. It is normally supplied with internal diameter up to 39 mm and in the following standard colours: black, brown, red, yellow, green, blue, orange, violet, grey and white.
IEC 60684-3-212:2005 standard gives the requirements for four types of heat-shrinkable polyolefin sleevings suitable for use at temperatures up to 135 °C. Type A: flame retarded, shrink ratio 2:1, Type B: not flame retarded, shrink ratio 2:1, Type C: flame retarded, shrink ratio 3:1, Type D: not flame retarded shrink ratio 3:1. This second edition cancels and replaces the first edition published in 1998, and constitutes a technical revision. This edition includes the following significant changes with regards to the previous edition: Replacement of the thermal endurance test method according to IEC 60216 with a long term ageing test, i.e. 3 000 h at the recommended maximum temperature found suitable for use, to provide safe thermal test data within a workable time scale. Key words: heat-shrinkable polyolefin sleevings
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