NEN EN 60034-5 : 1988

1 Scope and object
2 Normative references
3 Designation
   3.1 Single characteristic numeral
   3.2 Supplementary letters
   3.3 Example of designation
4 Degrees of protection - First characteristic numeral
   4.1 Indication of degree of protection
   4.2 Compliance to indicated degree of protection
   4.3 External fans
   4.4 Drain holes
5 Degrees of protection - Second characteristic numeral
6 Marking
7 General requirements for tests
   7.1 Adequate clearance
8 Tests for first characteristic numeral
9 Tests for second characteristic numeral
   9.1 Test conditions
   9.2 Acceptance conditions
10 Requirements and tests for open weather-protected
   machines
Annex ZA (normative) Normative references to
   international publications with their corresponding
   European publications
Figure 1 - Standard test finger
Figure 2 - Equipment to prove protection against dust
Figure 3 - Equipment to prove protection against
           dripping water
Figure 4 - Equipment to prove protection against
           spraying and splashing water
Figure 5 - Hand-held equipment to prove protection
           against spraying and splashing water
Figure 6 - Standard nozzle for hose test
Table 1 - Test requirements for guards
Table 2 - Degrees of protection indicated by the first
          characteristic numeral
Table 3 - Degrees of protection indicated by the second
          characteristic numeral
Table 4 - Test and acceptance conditions for first
          characteristic numeral
Table 5 - Test conditions for second characteristic
          numeral

Applies to the classification of degrees of protection provided by enclosures for rotating electrical machines. Also specifies the requirements for protective enclosures that are in all other respects suitable for their intended use and which, from the point of view of materials and workmanship, ensure that the properties dealt with in this standard are maintained under normal conditions of use.