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 (normative)
Selection criteria for fuse-links and cables (informative)
Unterkapitel anzeigen Unterkapitel ausblenden Introduction
Selecting the correct connecting cable and fuse-link
Unterkapitel anzeigen Unterkapitel ausblenden Procedure for selecting the rated current of fuse-links
Unterkapitel anzeigen Unterkapitel ausblenden Determine the typical load current
Determine the typical ambient temperature
Determine the rated current of the fuse-link based on B.2.1.1 and B.2.1.2
Procedure for selecting the correct size and temperature class of connecting cable
Unterkapitel anzeigen Unterkapitel ausblenden Determine the temperature class of cables
Calculate current required to operate fuse-link before cable is damaged
Calculate maximum circuit resistance to obtain current in B.2.2.2
Select the minimum size of cable that gives a circuit resistance not exceeding the value in B.2.2.3
Select the minimum size of cable to supply the load current from B.2.1.1
Select the larger cable size of B.2.2.4 and B.2.2.5