JIS C 60068-2-18:1996 English Edition

Environmental testing Part 2: Tests - Test R and guidance: Water

Abstract

This Japanese Industrial Standard provides test methods applicable to electrotechnical products which, during transportation, storage or in service, may be subjected to falling drops, impacting water or immersion. The primary purpose of water tests is to verify the ability of covers and seals to retain components and equipments in good working order after and, when necessary, under a standardized water dropfield. These tests are not corrosion tests and shall not be considered and used as such. The effects of a large water to specimen temperature difference, such as increased water ingress resulting from pressure changes, as well as thermal shock, are not simulated. Established water tests in other standards are not intended to simulate natural rainfall and their quoted intensities are too high to be adopted for that purpose. Therefore, test R includes an artificial rain test based upon natural conditions but not taking into account high wind speeds generally associated with natural rain.

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