GB/T 4798.4-1990 Environmental conditions existing in the application for electric and electronic products--Stationary use at non-weather-protected locations (English Version)
This standard specifies the environmental parameters and severity levels encountered by products fixed on the ground during normal use (including installation, shutdown and maintenance, etc.). This standard applies to electrical and electronic products that are fixedly installed on the ground and used in places without weather protection under normal conditions. It is not suitable for the environment caused by fire, explosion, ionizing radiation and other accidental accidents and the microclimate conditions inside the product.
GB/T 4798.4-1990 history
2023GB/T 4798.4-2023 Classification of environmental conditions—Classification of groups of environmental parameters and their severities—Part 4: Stationary use at non-weatherprotected locations
2007GB/T 4798.4-2007 Environmental conditions existing in the application of electric and electronic products- Part 4: Stationary use at non-weather-protected locations
1990GB/T 4798.4-1990 Environmental conditions existing in the application for electric and electronic products--Stationary use at non-weather-protected locations