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UL - 60745-2-2 CRD

UL Standard for Safety Hand-Held Motor-Operated Electric Tools – Safety – Part 2-2: Particular Requirements for Screwdrivers and Impact Wrenches - Section / Paragraph Reference: 1, 3.103, 12.4, 17.2, 24.4, K.12.1, L.12 Subject: Ratchet Drivers

inactive, Most Current
Organization: UL
Publication Date: 8 July 2013
Status: inactive
Page Count: 4
scope:

This standard applies to screwdrivers, and impact wrenches and ratchet drivers. 3.103 ratchet driver: Tool intended for tightening and loosening screws, nuts, and the like and equipped with a ratcheting mechanism. Some ratchet drivers are equipped with a means for switching the direction of rotation.

The tool is operated intermittently for 30 cycles, or until temperatures stabilise, whichever is achieved first, each cycle comprising a period of continuous operation of 30 s and a rest period of 90 s with the tool switched off, the tool loaded during the periods of operation by means of a brake adjusted so as to attain rated input or rated current. The temperature rises are measured at the end of the ²ON² period. At the manufacturers option the tool may be operated continuously until thermal stabilisation.

The impact or ratchet mechanism may be disabled during the test to prevent damage to the brake.

Document History

60745-2-2 CRD
July 8, 2013
UL Standard for Safety Hand-Held Motor-Operated Electric Tools – Safety – Part 2-2: Particular Requirements for Screwdrivers and Impact Wrenches - Section / Paragraph Reference: 1, 3.103, 12.4, 17.2, 24.4, K.12.1, L.12 Subject: Ratchet Drivers
This standard applies to screwdrivers, and impact wrenches and ratchet drivers. 3.103 ratchet driver: Tool intended for tightening and loosening screws, nuts, and the like and equipped with a...

References

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