The indenter is loaded with a weight of 20N and is applied to the centre of the handle. The test is successful if the test piece subsequently passes the electrical test.
Flame retardancy test
The flame is applied to the test piece for 10 seconds. The test piece is acceptable if the height of the flame on the burning handle does not exceed 120 mm in an observation period of 20 seconds after the burner has been removed.
The test is carried out at an ambient temperature of 23°C. The hammer is allowed to fall freely on the test piece 3 times. The test piece is acceptable if the handle is not cracked, broken or does not show signs of flaking.
Insulation test
Before testing the test piece is heated to 70 C -/+ 2° C for 168 hours. The hanger is loaded with weights (500 N). The duration of test is 3 minutes. The test piece is acceptable if the handle remains firmly attached to the conducting part.
Before testing the tools are immersed in a bath of water at 23° C for 24 hours +- 5 hours. The test pieces are acceptable if there is no electrical discharge, spark over or flashover, and if the current leakage is less than 1mA for 20 mm insulation.
Safety recommendation:
If the insulating material on insulated tools shows damage (exfoliations, cracks) you have never use them for working on live components.
