Abstract： AS 60034.5:2009 pdf download.Rotating electrical machines Part 5: Degrees of protection provided by the integral design of rotating electrical machines (IP Code)—Classification. 4 Degrees of protection — First characteristic numeral 4.1...

AS 60034.5:2009 pdf download.Rotating electrical machines Part 5: Degrees of protection provided by the integral design of rotating electrical machines (IP Code)—Classification.

4 Degrees of protection — First characteristic numeral

4.1 Indication of degree of protection

The first characteristic numeral indicates the degree of protection provided by the enclosure to persons and to the parts of the

machine inside the enclosure.

Table 2 gives, in the third column, brief details of objects which will be ‘excluded’ from the enclosure for each of the degrees of protection represented by the first characteristic numeral.

The term excluded implies that a part of the body. a tool or a wire held by a person, either will not enter the machine or, if it enters, that adequate clearance will be maintained between it and the live parts or dangerous moving parts (smooth rotating shafts

and the like are not considered dangerous).

The third column of table 2 also indicates the minimum size of solid foreign objects which will be excluded.

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