Page 274 - HAZET哈蔡特2024英文样本

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Tools with protective insulation / Tools for electricians Tools with protective insulation / Tools for electricians
Exemplary examples of VDE tests

on the model of a HAZET torque wrench with protective insulation

2 m
at + 23 °C

0.6 m
at – 25 °C

Electrical test [type testing] Cold impact test [type testing]:
No breakdowns or arcing may occur in With a retention time of 2 hours at an ambient
the vicinity of the insulation after 48 hours temperature of -25 °C, the insulation must not
of moisture-proof storage with a 3-minute present any cracks or other damage during targeted
measurement under 10,000 V. shocks and impacts (falling height 0.6 m).

Impact test at the ambient temperature:
20 sec.
At an ambient temperature of 23 °C, the insulation
must not present any cracks or other damage after
120 mm targeted shocks and impacts (falling height 2 m)

10 sec. 5000 V
2 kg ^ 20 N
=
Burn test [type testing]: 3
min.
After 10 seconds in a flame, the insulation 2 kg
must not prove to be „easily combustible“.

50 kg
+ 70 °C

3
min.
Pressure test [type testing]:
After being stored for 2 hours at a temperature
of 70 °C, with a pressure load of 20 N and a
3-minute measurement under 5,000 V, there must
be no punctures or arcing in the insulation.

Test for adhesion:
The insulation must not come loose or
slacken when under a tensile load for
3 minutes with 500 N after 168 hours
in a climatic chamber at +70°C.
272 Errors excepted Components and spare parts from page 500 to 509