AS 60974.11-2005 pdf free download

AS 60974.11-2005 pdf free download.Arc welding equipment Part 11 : Electrode holders.
Conformity shall be checked by measurement according to a welding cable of the maximum cross-sectional area as specified by the manufacturer
10,3 Welding cable connection
The design of the electrode holder shall be such that welding cables with a cross-sectional area within the range as specified by the manufacturer can be replaced. The connection shall withstand the mechanical stress of the tensile test without separation.
Conformity shall be checked by visual inspection and the following test:
The electrode holder is fitted in accordance with the manufacturer’s instructions with a
welding cable of maximum cross-sectional area. The connection is subjected to 10 pulls with
a force of 40 N per mm2 of the cross-sectional area with a maximum of 2 000 N, applied to the
welding cable. The force of each pull is gradually increased from zero to the specified value in
1 s and maintained for a further second.
After the test, the conductor shall not have been noticeably displaced. This test shall be repeated with a welding cable having the minimum cross-sectional area as specified by the manufacturer.
If more than one method of cable fixing is provided, all methods shall be tested.
10.4 Impact resistance
Electrode holders shall withstand the mechanical stress of the impact tests without visible or functional alterations of the electrode clamping device or of the control of this device. Conformity shall be checked by the following tests:
a) Vertical fall
The electrode holder is suspended by its welding cable, with the end of the head 1 m above the impact plane. The impact plane is a sheet of mild steel, having a thickness of at least 9 mm, in contact with the ground.
The electrode holder is released with its cable in free fall. The test is made three times with the same electrode holder.
b) Pendulum swing
For this test, a device according to Figure 3 is used. The electrode holder suspended by its welding cable is removed from the vertical in a plane normal to the wall.
Released without initial velocity, it strikes a shock piece under the following conditions:AS 60974.11-2005 pdf free download.