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ISO 8820-2:2014-02

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Standard [CURRENT]

ISO 8820-2:2014-02

Road vehicles - Fuse-links - Part 2: User guidelines

German title: Straßenfahrzeuge - Sicherungseinsätze - Teil 2: Benutzerhandbuch
Publication date: 2014-02
Original language: English
Pages: 14

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Publication date: 2014-02
Original language: English
Pages: 14

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Content
ICS
Replacement amendments
Cooperation at DIN

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Content

Content (en)

Foreword
Scope
Normative references
Terms and definitions
Rated voltage and system voltage
Rated current and continuous current
Cold resistance
Current and conductors
Current and contact resistance
Current and ambient temperature
Cable protection versus time-current characteristics
Selectivity
Replacement of fuse-links
Voltage peaks during opening of fuse-links
Inrush withstand characteristics of fuse-links
Electromagnetic compatibility (EMC)
Parameters for the selection of fuse-links in road vehicles (informative)
Selection criteria for fuse-links and cables (normative)
- Introduction
- Selecting the correct connecting cable and fuse-link
  - Selection process
  - Procedure for selecting the rated current of fuse-links
  - Procedure for selecting the correct size and temperature class of connecting cable
    Determination of the temperature class of cables
    Calculation of the current required to operate fuse-link before cable is damaged
    Calculate the maximum circuit resistance to obtain current in B.2.3.2
    Selection of the minimum size of cable that gives a circuit resistance not exceeding the value in B.2.3.3
    Selection of the minimum size of cable to supply the load current from B.2.2.1
    Selection of the larger cable size of B.2.3.4 and B.2.3.5
    Summary

ICS

43.040.10

Replacement amendments

This document replaces ISO 8820-2:2005-04 .

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