BS 490-11.3(1991) : 1991被替代
CONVEYOR AND ELEVATOR BELTING - METHODS OF TEST FOR SAFETY - DRUM FRICTION TESTS
出版：British Standards Institution
专家解读视频
基本信息
标准编号： BS 490-11.3(1991) : 1991
发布时间：1991/1/1 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：14
标准简介
Describes a method of test to determine the propensity of a conveyor belt to generate heat, flame or glow when held stationary under a given tension, against a rotating steel drum. Means of varying the belt tension for different modes of operation are included. Two modes are described, mode A, in which the test is pursued, at increasing tensions, until the belt ruptures and B, in which the test is conducted at a specified and fixed belt tension for a given time or until rupture. B is unsuitable for testing belting for use underground.
替代本标准的新标准
