A ABB1 New member Jun 8, 2009 #1 When conduit (nipples) is used in a Class 1 area can it be welded or seamless, schedual 40 npt or thicker, as required by NEC 501 wiring - threaded rigid metal conduit?
When conduit (nipples) is used in a Class 1 area can it be welded or seamless, schedual 40 npt or thicker, as required by NEC 501 wiring - threaded rigid metal conduit?
roger Moderator Staff member Location Fl Occupation Retired Electrician Jun 8, 2009 #2 The definition is found in 344.2, the question of what it is or what it can be is put to bed by the requirement that it be listed, see 344.6. Roger
The definition is found in 344.2, the question of what it is or what it can be is put to bed by the requirement that it be listed, see 344.6. Roger
