LOW-VOLTAGE FUSES - PART 2: SUPPLEMENTARY REQUIREMENTS FOR FUSES FOR USE BY AUTHORIZED PERSONS (FUSES MAINLY FOR INDUSTRIAL APPLICATION) - EXAMPLES OF STANDARDIZED SYSTEMS OF FUSES A TO K
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 General scope
Fuse system A - Fuses with fuse-links with blade contacts
(NH fuse system)
1 General
2 Terms and definitions
3 Conditions for operation in service
4 Classification
5 Characteristics of fuses
6 Markings
7 Standard conditions for construction
8 Tests
Annex AA (informative) - Special test for cable overload
protection
Fuse system B - Fuses with striker fuse-links with blade
contacts (NH fuse system)
1 General
2 Terms and definitions
3 Conditions for operation in service
4 Classification
5 Characteristics of fuses
6 Markings
7 Standard conditions for construction
8 Tests
Fuse system C - Fuse-rails (NH fuse system)
1 General
2 Terms and definitions
3 Conditions for operation in service
4 Classification
5 Characteristics of fuses
6 Markings
7 Standard conditions for construction
8 Tests
Fuse system D - Fuse-bases for busbar mounting (40 mm
system) (NH fuse system)
1 General
2 Terms and definitions
3 Conditions for operation in service
4 Classification
5 Characteristics of fuses
6 Markings
7 Standard conditions for construction
8 Tests
Fuse system E - Fuses with fuse-links for bolted connections
(BS bolted fuse system)
1 General
2 Terms and definitions
3 Conditions for operation in service
4 Classification
5 Characteristics of fuses
6 Markings
7 Standard conditions for construction
8 Tests
Fuse system F - Fuses with fuse-links having cylindrical
contact caps (NF cylindrical fuse system)
1 General
2 Terms and definitions
3 Conditions for operation in service
4 Classification
5 Characteristics of fuses
6 Markings
7 Standard conditions for construction
8 Tests
Fuse system G - Fuses with fuse-links with offset blade
contacts (BS clip-in fuse system)
1 General
2 Terms and definitions
3 Conditions for operation in service
4 Classification
5 Characteristics of fuses
6 Markings
7 Standard conditions for construction
8 Tests
Fuse system H - Fuses with fuse-links having 'gD' and
'gN' characteristics (class J, class T,
and class L time delay and non time delay
fuse types)
1 General
2 Terms and definitions
3 Conditions for operation in service
4 Classification
5 Characteristics of fuses
6 Markings
7 Standard conditions for construction
8 Tests
Fuse system I - gU fuse-links with wedge tightening
contacts
1 General
2 Terms and definitions
3 Conditions for operation in service
4 Classification
5 Characteristics of fuses
6 Markings
7 Standard conditions for construction
8 Tests
Fuse system J - Fuses with fuse-links having 'gD class CC'
and 'gN class CC' characteristics (Class CC
time delay and non-time delay fuse types)
1 General
2 Terms and definitions
3 Conditions for operation in service
4 Classification
5 Characteristics of fuses
6 Markings
7 Standard conditions for construction
8 Tests
Fuse system K - gK fuse-links with blade contacts for
bolted connections - High current fuse-link
link ratings from 1250 A up to 4800 A
(Master fuse-links)
1 General
2 Terms and definitions
3 Conditions for operation in service
4 Classification
5 Characteristics of fuses
6 Markings
7 Standard conditions for construction
8 Tests
Bibliography
Describes specific example of fuses for use by authorized persons are generally designed to be used in installations where the fuse-links are accessible to, and may be replaced by, authorized persons only.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 32 |
