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Conduit sealing for increased Safety Enclosure

Question asked by huab2000 on Feb 6, 2020
Latest reply on Feb 6, 2020 by huab2000

in our project, increased Safety (exe) enclosure are installed in class I, zone 2 . As per NPPA 70,  Inarticle 505.16 (C):class II, Zone 2 locations, seals shall be located in accordance with 505.16(C)(1) and (C)(2).It is clear for me that exd enclosure must be provided with conduit seal fitting but it is not  for exe.Would you please  confirm  if the seal fitting is required for exe enclosure or not.