BS ISO 8820-11:2020 pdf free.Road vehicles – Fuse-links,Fuse-links with tabs (blade type) Type M (medium-high current).
BS ISO 8820-11 This document specifies fuse-links with tabs (blade-type) Type M (medium-high current) for use in road vehicles. It establishes, for this fuse-link type, the rated current, test procedures, performance requirements and dimensions.This document is applicable for fuse-links with a rated voltage of 32 V and a current rating of≤80 A and a breaking capacity of 1 000 A intended for use in road vehicles.This document is intended to be used in conjunction with ISO 8820-1 and ISO 8820-2. The numbering of the clauses corresponds to that of ISO 8820-1 whose requirements are applicable, except where modified by requirements particular to this document.The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 2768-1, General tolerances一Part 1: Tolerances for linear and angular dimensions without individual tolerance indications ISO 6722-1, Road vehicles- 60 V and 600 V single-core cables一Part 1: Dimensions, test methods and requirements for copper conductor cables ISO 8820-1, Road vehicles一Fuse-links 一Part 1: Definitions and general test requirements.In addition to carrying out the test procedures in accordance with ISO 8820-1 the following criteria shall apply. Tests shall be performed following the test sequences in Table 2. The test fixtures for electrical tests shall be designed in accordance with Figure 1.The connection resistance shall be≤0,35 mS2 for Type M (medium-high current) to ensure the proper function of the test fixture.Fuse-links according to this document shall provide for visible evidence of an open fuse-element.Test cable sizes shall be as given in Table 3. All tests for a particular fuse-link rating shall be performed using the same cable size.Test cable sizes are specified to allow comparative fuse-link tests to be carried out. The cable size
specified herein does not necessarily indicate the size of the cable to be used in the vehicle application. BS ISO 8820-11 pdf download.