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Table 2 – Examples of the provision of pollution degree environments
5 ~$ ^$ J N, \2 Y& \4 y) N, U; tReduction of Pollution Degree 3 to Pollution Degree 2 " Z. @4 ^/ l6 f- V# g2 P2 ]
Control of the Pollution Degree 3 environment to Pollution Degree 2 can be % ~. ?) E- F0 Y; @# {: K
accomplished by either: w, R$ B% d4 d9 k7 F/ X
– providing continuous energization of the enclosed equipment; or
4 t0 A) c8 c# ]7 @5 H+ `– providing separate climate conditioning which prevents condensation
! h! b: t1 b1 Q. Y' b. ywithin the OUTDOOR EQUIPMENT or OUTDOOR ENCLOSURE; or . C% d4 f ]) F/ E+ W
– the use of an ENCLOSURE meeting IP54. |
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