1.1 Scope
This part specifies the time-current characteristic, requirements of impulse withstand test and the selection guide of the high-voltage fuse-links for motor circuit applications.
This part applies to fuse-links used with motor started direct-on-line on alternating current systems of 50Hz and with the nominal voltage of 3kV or above.
The normal service conditions and motor starting pulses to which the fuse-links are subjected shall meet the requirements of GB/T 15166.2-2008.
Note: when motors are used with assisted starting, this part can also be applied but particular attention should be paid to the selection of the rated current of the fuse-link and the manufacturer of the fuse-link should preferably be consulted.
1.2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
