K.21.33 This subclause is not applicable.
K.21.34 This subclause is not applicable.
K.21.101 Tools shall not readily accept general purpose batteries (either primary or rechargeable).
Note: Examples of general purpose batteries are AA, C, D, etc.
K.22 Internal wiring
K.22.3 This subclause is applicable only for hazardous voltages.
K.22.4 This subclause is not applicable.
K.23 Components
K.23.1.10 Power switches shall have adequate breaking capacity.
Compliance is checked by subjecting a switch to 50 operations of making and breaking the locked use
output spindle current of the fully charged battery operated tool. Each
″
on
″
period having a duration of not
more than 0,5 s and each
″
off
″
period having a duration of at least 10 s.
After this test the power switch shall have no electrical or mechanical failure. If the switch operates
properly in the ON and OFF positions at the end of the test, it is considered to have no mechanical or
electrical failures.
K.23.1.11 Power switches shall withstand, without excessive wear or other harmful effect, the
mechanical, electrical, and thermal stresses occurring in normal use.
Compliance is checked by subjecting a switch to 6 000 cycles of operation making and breaking the
current encountered in the fully charged battery tool operated at no-load. The switch is operated at a
uniform rate of 30 operations per minute. During the test the switch shall operate correctly. After the test,
inspection of the switch shall show, no undue wear, no discrepancy between the position of the operating
means and that of the moving contacts, no loosening of electrical or mechanical connections, no seepage
of sealing compound.
K.23.5 This subclause is not applicable.
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