24.13 Flexible cables or cords of tools shall be protected against excessive bending at the inlet opening
of the tool by means of a cord guard of insulating material. Such guards shall not be integral with a power
supply cable or cord for type X attachment.
The guards shall be fixed in a reliable manner, and shall be of such a design that they project outside the
tool for a distance beyond the inlet opening of at least five times the overall diameter of the cable or cord
delivered with the tool.
Compliance is checked by inspection, by measurement and by the following test.
A tool designed for a power supply cord is fitted with a cord guard, the flexible cable or cord being
approximately 100 mm longer than the guard.
The tool is so held that the axis of the cord guard, where the cable or cord leaves it, projects upwards at
an angle 45° to the horizontal when the cable or cord is free from stress.
A mass equal to 10 D
2
grams is then attached to the free end of the cable or cord. D is the external
diameter of the flexible cable supplied with the tool in mm.
If the cord guard is temperature sensitive, the test is made at a temperature of (23
±
2) °C.
Immediately after the mass has been attached, the curvature of the cable or cord shall nowhere be less
than 1,5 D.
24.13DV D1
Modification: Delete the last sentence of the first paragraph.
24.14 Tools provided with a supply cord shall have cord anchorages so that the conductors are relieved
from strain, including twisting, where they are connected within the tool, and that the insulation of the
conductors is protected from abrasion.
It shall not be possible to push the cord into the tool to such an extent that the cord, or internal parts of
the tool, could be damaged.
Compliance is checked by inspection, by manual test, and by the following test.
The cord is subjected 25 times to a pull of the value shown in Table 7. The pulls are applied without jerks
in the most unfavourable direction each time for 1 s.
Immediately afterwards, the cord, other than that of an automatic cord reel, is subjected for 1 min to a
torque of the value shown in Table 7.
Dostları ilə paylaş: