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Pull and Torque Test For Supply Cord Anchorage of Electric Appliance


Pull and Torque Test For Supply Cord Anchorage of Electric Appliance

As per IEC 60335-1 clause 25.15, appliances provided with a supply cord, and appliances intended to be permanently connected to fixed wiring by a flexible cord, shall have a cord anchorage. The cord anchorage shall relieve conductors from strain, including twisting, at the terminals and protect the insulation of the conductors from abrasion.

It shall not be possible to push the cord into the appliance to such an extent that the cord or internal parts of the appliance could be damaged.

Compliance is checked by the following Cord Anchorage Pull and Torque Test:

The cord is then pulled, without jerking, for 1 s in the most unfavourable direction with the force specified. The test is carried out 25 times.

The cord, unless on an automatic cord reel, is then subjected to a torque that is applied as close as possible to the appliance. The torque is specified and is applied for 1 min.

The Power Cord Strain and Twist Tester ZLT-LN1 manufactured by Zhilitong Electromechanical Co., Ltd , meets with above requirements of IEC 60335-1.

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