GB/T 4208-2017 Degrees of protection provided by enclosure(IP code)
GB/T 4208-2017 Degrees of protection provided by enclosure(IP code)
Basic Information
Scope
This standard applies to electrical equipment with a rated voltage not exceeding 72.5 kV, protected by enclosures. The purpose of this standard is as follows: a) To specify the enclosure protection classifications for electrical equipment as follows: 1) Protection against human contact with dangerous components inside the enclosure; 2) Protection against solid foreign objects entering the enclosure; 3) Protection against water entering the enclosure and causing harmful effects to the equipment. b) Identification of protection levels. c) Requirements for the identification of each protection level. d) Verification testing of the enclosure according to the requirements of this standard. The extent and manner of citing enclosure protection levels for various products, as well as the type of enclosure to be used, shall be determined by the product standards. The tests used for specific protection levels shall comply with the provisions of this standard. Where necessary, additional requirements may be added in the relevant product standards. For details that can be specified in the relevant product standards, see Appendix B. For special types of equipment, the product standards may stipulate different requirements, but at least the same level of safety shall be ensured. This standard only considers enclosures that comply with the provisions of the relevant product standards in all aspects. Under normal operating conditions, the materials and processes of the enclosure shall ensure the required protection level. If a certain type of equipment meets the general test requirements and the selected protection level is applicable to that equipment type, this standard also applies to the empty enclosures of that type of equipment. Protective measures against external influences or environmental conditions such as mechanical damage, rust, corrosive solvents (e.g., cutting fluids), mold, pests, solar radiation, ice, moisture (e.g., caused by con