MT 4 - TC 116/MT 4

IEC 60745-2-5:2010 deals with the safety of hand-held motor-operated or magnetically driven electric tools, specific requirements for all types of circular saws. The rated voltage being not more than 250 V for single-phase a.c. or d.c., and 440 V for three-phase a.c. tools. This standard does not apply to saws used with abrasive wheels. The principal changes in this edition as compared with the fourth edition are as follows:
- clause 17 introduction of endurance tests in practical use for the guards of all types of saws;
- clause 19 clarifications and editorial improvements in respect to the guarding;
- annex M editorial improvements.
This publication is to be read in conjunction with  IEC 60745-1:2006.

Gives recommendations on the data to be measured to enable an operator to diagnose developing deviations from normal functioning so as to take corrective action at an early stage. (Text identical with Annex 11 to IAEA Safety Guide No. 50-SG-D12.)

This technical report comprises data collected from different countries to be used for calculating short-circuit currents in accordance with IEC 60781 and IEC 60909. The data presented in this report may be applied for calculating short-circuit currents in low-voltage systems if they are in accordance with typical equipment employed in the user's country. The publication has the status of a Technical Report type 3.

Deals with the safety of hand-held motor-operated or magnetically driven tools, specific requirements for concrete vibrators. The rated voltage being not more than 250 V for single-phase a.c. or d.c., and 440 V for three-phase a.c. tools.