Ningbo Dahua Electric Appliance-NINGBO DAHUA ELECTRIC APPLIANCE CO.,LTD
NINGBO DAHUA ELECTRIC APPLIANCE CO.,LTD
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PURPOSE
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         To create a general stressing of all canister cleaner bodies and wheels by traversing over and around carpets and various obstacles.
         Note: "Dust bag endurance" ref. no. 1STO129 can be tested at the same time.

 EQUIPMENT
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         The rig is based on a square parquet flooring. Various ramps, steps, thresholds, door posts and other obstacles are affixed to the floor to simulate an operational environment.
                        
        Six radial arms, centrally supported, rotate via a suitable gear box drive at a rate of 0.5 m/s.
         A single sample hose/coupling is fitted to each arm for connection to cleaners under test.
         Lengths of hose samples should be adjusted so that the cleaner under test tangents a vertical obstacle at the centre of the cleaner.
         Power supply to each individual cleaner.
         A suitable load sensor system to cut-off if rig becomes jammed.
         Timer unit to monitor elapsed time of each arm.
METHOD
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         The sample cleaners are set up in the rig by connecting the hose/coupling to the air inlets with a nominal angle of 30 degrees from the horizontal, with the cleaner at rest on a level base, with no stretch on the hose.
         Connect to nominal mains voltage and fix the cable to prevent it from getting caught at an obstacle.
         The cleaner motor should run intermittently, On for 12.75 min and Off for 1 min (on maximum power setting) and totally shutdown for 5 min.
         The cleaner should be inspected twice a day to check for signs of wear.
         After each 50 hours, cleaners should be removed from the rig, dismantled and inspected in detail to check for cracks, wear, etc.
         The test may be run overnight.

REQUIREMENTS
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         Sample cleaners on the carousel should last for at least 150 hours without failure.