This part of GB 13539 applies to fuses equipped with enclosed current-limiting fuse links with a rated breaking capacity of not less than 6 kA. This fuse is used to protect AC power frequency circuits with a nominal voltage not exceeding 1,000 V or DC circuits with a nominal voltage not exceeding 1,500 V. ” The following standards in this part include supplementary requirements for fuses used under special conditions. GB 140418.3 "Low-voltage switchgear and control equipment - Part 3: Switches, isolators, isolating switches and fuse combinations" Fuse links used in electrical appliances shall also comply with the requirements of this section. Note 1: For "a" fuse links, the details of its DC performance (see 2.2.4) shall be negotiated between the user and the manufacturer. Note 2: For certain. For some special-purpose fuses, such as fuses for electric locomotives or fuses for high-frequency circuits, modifications and supplements must be made when using this section. If necessary, separate standards can be established. Note 3: This section does not apply to small fuses. The standard for small fuses is IEC 60127. The purpose of this part is to specify the characteristics of fuses or fuse components (fuse base, fuse carrier, fuse link), if they are interchangeable (including dimensions, etc.) They can be interchanged by fuses or fuse parts with the same characteristics. For this purpose, this section specifically relates to the following aspects:
——Fuse characteristics: · Rating; · Insulation; · Temperature under normal use. Liters; ·Dissipated power and accepted dissipated power; ·Time/current characteristics; ·Breaking capacity; ·Cut-off current characteristics and It characteristics. - Type test to verify the characteristics of the fuse;
——Fuse marking.
IEC 60269-1:2006 Referenced Document
GB 13539.3-2008 Low-voltage fuses.Part 3:Supplementary requirements for fuses for use by unskilled persons(fuse mainly for household and similar applications).Examples of standardized systems of fuses A to F*, 2008-06-19 Update
1986IEC 60269-1:1986 Low-voltage fuses. Part 1 : General requirements
1970IEC 60269-1:1968/COR1:1975 corrigendum 1 - Low-voltage fuses with high breaking capacity for industrial and similar purposes - Part 1: General requirements
1970IEC 60269-1:1968 Low-voltage fuses with high breaking capacity for industrial and similar purposes - Part 1: General requirements
IEC 60269-1:2006 Low-voltage fuses - Part 1: General requirements has been changed from IEC 60269-2:1986 Low-voltage fuses. Part 2 : Supplementary requirements for fuses for use by authorized persons.
IEC 60269-1:2006 Low-voltage fuses - Part 1: General requirements has been changed from IEC 60269-3:1987 Low-voltage fuses.. Part 3: Supplementary requirements for fuses for use by unskilled persons (Fuses mainly for household and similar applications).