Non protected, No special protection
Protected against falling water Equivalent to 3-5mm rainfall per minute for a duration of 10 minutes. Unit is placed in its normal operating position.
Protected against falling water when tilted up to 15 degrees. Same as (1) above but unit is tested in 4 fixed positions - tilted 15 degree in each direction from normal operating position.
Protected against spraying water, Water spraying up to 60 degrees from vertical at 10 liters/min at a gauge pressure of 80-100kN/m2 for 5 min.
Protected against splashing water. Same as level 3 but water is sprayed at all angles.
Protected against water jets Water projected at all angles through a 6.3mm nozzle at a flow rate of 12.5 liters/min at a gauge pressure of 30kN/m2 for 3 minutes from a distance of 3 meters.
Protected against heavy seas. Water projected at all angles through a 12.5mm nozzle at a flow rate of 100 liters/min at a gauge pressure of 100kN/m2 for 3 minutes from a distance of 3 meters.
7 Protected against water immersion. Immersion for 30 minutes at a depth of 1 meter.
Protected against water submersion The equipment is suitable for continuous submersion in water under conditions which are identified by the manufacturer.