STANDARD FOR SAFETY Tests for Sharpness of Edges onEquipment

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标准简介

UL 1439 STANDARD FOR SAFETY Tests for Sharpness of Edges onEquipment1 Scope1.1These requirements cover a test procedure to be used to determine the potential personal injuryrelated to the sharpness of edges that are part of or associated with appliances and equipment.2Units of Measurement2.1Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.3 Undated References3.1 Any undated reference to a code or standard appearing in the requirements of this standard shall beinterpreted as referring to the latest edition of that code or standard.cONSTRUCTION4General4.1 An edge of an enclosure opening， frame, guard， knob， handle or the like of an appliance orequipment shall be smooth and rounded so as not to cause a cut-type injury when contacted duringnormal use or user maintenance.Exception: A sharp edge that must be exposed to enable the product to perform its intended function neednot comply with the requirement in 4.1.TESTS5 Apparatus5.1 The test apparatus is to consist of the following:a) Sharp-Edge Tester - The instrument consists essentially of a handle with a pivoted armattached.A constant-tension spring secured to the h

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