Ningbo Dahua Electric Appliance-NINGBO DAHUA ELECTRIC APPLIANCE CO.,LTD
NINGBO DAHUA ELECTRIC APPLIANCE CO.,LTD
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Cable winder
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PURPOSE
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         To simulate the operational usage of the cable winder facility, by advancing and retracting the cable in stages, using the built-in braking system. Also to create wear on electrical components such as slip rings.

EQUIPMENT
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         The test rig consists of a purpose built frame, adjustable to accommodate different cleaner models with electronically controlled plunger and pulley systems designed to advance and retract the cable at different angles as specified.
Cable movement is monitored by sensors throughout the test so that any failure will cause the rig to shut down.
METHOD
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         The cleaner to be tested has its cable pulled out at an angle of 60 degrees to the horizontal, parallel to the cable drum. One meter is pulled out each time, the number of pulls dependent on the total length of the cable.
For retraction the cable is moved to a horizontal position, and is returned in 2-4 movements, with the cable stopping under the action of the brake between each movement. The cable must go in freely.
During the test the cleaners are running.

REQUIREMENTS
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         The cleaners on test must last for a minimum of 10000 cycles.
         The rig should be checked regularly to monitor for excessive wear or cable slip.