Test a) is conducted for 5 minutes, then repeated with the specimen rotated horizontally by 90° for the second 5-minute test. Water falling as a spray at any angle up to 60° from the vertical shall have no harmful effect, utilizing either: a) an oscillating fixture or b) A spray nozzle with a counterbalanced shield. Water equivalent to 3 mm (0.12 in) rainfall per minute Test duration: 2.5 minutes for every direction of tilt (10 minutes total) A total of four positions are tested within two axes. Vertically dripping water shall have no harmful effect when the enclosure is tilted at an angle of 15° from its normal position. Water equivalent to 1 mm (0.039 in) rainfall per minute X means there is no data available to specify a protection rating with regard to these criteria.ĭripping water (vertically falling drops) shall have no harmful effect on the specimen when mounted in an upright position onto a turntable and rotated at 1 RPM. The second digit of the IP rating indicates the level of the enclosure’s protection from blocking internal components against various forms of moisture (sprays, drips or submersion etc). What does the second digit of the IP rating mean? Source: Wikipedia IP6 5 = Second Digit – Liquids Test duration of up to 8 hours based on airflow. No ingress of dust complete protection against contact (dust-tight). Ingress of dust is not entirely prevented, but it must not enter in sufficient quantity to interfere with the satisfactory operation of the equipment. Most wires, slender screws, large ants etc. No protection against contact and ingress of objectsĪny large surface of the body, such as the back of a hand, but no protection against deliberate contact with a body part X means there is no data available to specify a protection rating with regard to this criterion. The first digit of the IP rating indicates the level of the enclosure’s protection against the ingress from blocking solid foreign bodies such as dust, tools or fingers that could be hazardous if were to come into contact with electrical components, parts or circuitry within the enclosure. What does the first digit of the IP rating mean?
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