1 General
1.1 Scope
1.2 Normative references
2 Normal and special service conditions
2.1 Normal service conditions
2.2 Special service conditions
2.3 Environmental behaviour
3 Definitions
3.1 Electrical characteristics
3.2 Fuses and their component parts
3.3 Additional terms
4 Ratings and characteristics
4.1 Rated voltage
4.2 Rated insulation level (of a fuse-base)
4.3 Rated frequency
4.4 Rated current of the fuse-base
4.5 Rated current of the fuse-link
4.6 Temperature-rise limits
4.7 Rated breaking capacity
4.8 Limits of switching voltage
4.9 Rated transient recovery voltage (rated TRV)
4.10 Maximum application temperature of full-range fuses
4.12 Cut-off characteristics
4.13 l[2]t characteristics
4.14 Mechanical characteristics of strikers
4.15 Special requirement for back-up fuses intended for use in
switch-fuse combination according to IEC 60420
5 Design, construction and performance
5.1 General requirements with respect to fuse operation
5.2 Identifying markings
5.3 Dimensions
6 Type tests
6.1 Conditions for making the tests
6.2 List of type tests
6.3 Common test practices for all type tests
6.4 Dielectric tests
6.5 Temperature-rise tests and power-dissipation measurement
6.6 Breaking tests
6.7 Tests for time-current characteristics
6.8 Oil-tightness tests
6.9 Tests of strikers
6.10 Electromagnetic compatibility (EMC)
7 Special tests
7.1 List of special tests
8 Application guide
8.1 Object
8.2 General
8.3 Application
8.4 Operation
8.5 Disposal
Annex A (normative) Method of drawing the envelope of the prospective
and transient recovery voltage of a circuit and determining
the representative parameters
Annex B (informative) Reasons which led to the choice of TRV values
for Test Duties 1, 2 and 3
Annex C (informative) Preferred arrangements for temperature-rise
tests of oil-tight fuse-links for switchgear
Annex D (informative) Types and dimensions of current-limiting
fuse-links specified in existing national standards
Annex E (normative) Method of determining the minimum test current
l[3] of a full-range fuse intended for use at surrounding
temperature above 40 degree C
Annex F (informative) Determination of derating when the temperature
surrounding the fuse exceeds 40 degree C
Annex ZA (normative) Normative references to international publications
with their corresponding European publications
Bibliography