UL 496 Cap Of Metal - Shell Lampholders Security Test Apparatus
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UL 496 Cap of Metal-shell Lampholders Security Test Apparatus
Product Overview: This cap of metal-shell lampholders security test apparatus s meets the requirements of UL 496 2013 clause 5.2.11, IEC 60238 clause 16.5 figure 12, etc. It is used to check whether cap of a metal-shell medium-screw lampholder shall be secured to the outer shell such as the cap does not separate from the shell when subjected to a cantilever load, or the strength of the connection between dome and threaded entry.
Main Parameters: Mandrel diameter: Φ12mm. Threaded plugs with attached shafts for E14, E26, E27, E39 and E40 lampholders, one of each, total 5 pieces. Force gauge for UL 496 clause 5.2.11 test: 0~500N, resolution: 0.1N, accuracy: ±1%. Weights for IEC 60238 clause 16.5 test: 6 pcs, each one is 1kg (can be combined).
Test Procedures and Operation: Please refer to relative standard requirements, take UL 496 2013 clause 5.2.11 as an example: 1.The lampholder to be tested, complete with interior mechanism, shall be mounted on an appropriate nipple. 2. Choose the appropriate threaded plug with attached shaft according to the lampholder to be tested, then insert it into the lamp opening. 3. The force gauge is hanged on the proper position and suspended from the shaft, then pull the force gauge downward so as to subject the lampholder to the appropriate cantilever load. The value of the cantilever load shall be such that the appropriate bending moment is applied at the point of attachment of the cap to the outer shell. For lampholders with threading on the outside of the shell near the open end of the shell (UNO thread), the load shall be 3.39 N.m (30 lbf-in), and for lampholders without an external thread, the load shall be 1.69 N.m (15 lbf-in). 4. During this test, the lampholder shall be rotated at an even rate through 360 degrees manually.
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| Product Tags: Lampholders Security Test Apparatus UL 496 Lampholders Security Test Apparatus |
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