NBN EN 60269-2 : 98 AMD 3 2002

Committees responsible
National foreword
Foreword
1 General
    1.1 Scope
    1.2 Object
4 Classification
5 Characteristics of fuses
         5.3.2 Rated currents of the fuse-holder
    5.5 Rated power dissipation of a fuse-link
         and rated power acceptance of a fuse-holder
    5.6 Limits of time-current characteristics
         5.7.2 Rated breaking capacity
6 Marking
    6.1 Markings of the fuse-holders
    6.2 Markings of the fuse-links
    7.2 Insulating properties
    7.6 Cut-off current characteristics
    7.7 I2t characteristics
8 Tests
         8.4.3.3 Verification of time-current
                 characteristics and gates
         8.9.1 Verification of resistance to heat
                 of the fuse-holder
         8.11.1 Mechanical strength
Figure 1 - Time-current zone "aM"
Table A - Gates for "aM" fuse-links (all rated currents)
Table B - Minimum rated breaking capacities
Table C - Maximum operating I2t values for "aM" fuse-links
Table D - Cross-sectional areas of copper conductors for the
           test of "aM" fuse-links

These supplementary requirements apply to fuses for use by authorized persons. Covers rated currents of the fuse holder, rated power dissipation of a fuse link and rated power acceptance of a fuse holder, limits of time current characteristics, gates for "aM" fuse links, rated breaking capacity, minimum rated breaking capacities, markings of the fuse holders and links, insulating properties, cut off current characteristic, verification of time current characteristics and gates, verification of resistance to heat of the fuse holder and mechanical strength.