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Heating Effect to SMC Manhole Cover

Heating Effect to SMC Manhole Cover

  • 2021/03/23

The SMC manhole top is able to adapt to any kind of harsh weathers and it can be used in the climate of -50~160℃. The protection level is IP54, which can maintain good physical and mechanical properties. The fire retardant of SMC manhole cover can reach to FV0 level, and the smoke & gas level is quasi-safety level 1 ( ZA1), which meets the requirements of domestic and international UL94 standards.

Heavy Duty Manhole Cover

According EN 124-5:2015

The Effect of Heating to SMC Manhole Cover

Condition a manhole top that has been subjected to impact resistance test according to 6.5 in an oven that has been preheated to a temperature of (150 ± 5) . Run the test for (60±5/0) minutes commencing timing as the oven reaches the test temperature and on completion of test period remove manhole top and allow cooling to ambient temperature. The test sample shall be examined with proper light when ascertaining the test result.


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