This standards publication covers fittings that are a part of electrical raceway systems designed for use as intended by the requirements of the National Electrical Code?@ NFPA 70. Specifically@ this standard covers fittings for use with non-flexible tubular raceways??Rigid and Intermediate Metal Conduit@ Electrical Metallic Tubing. Also included are fittings for use with flexible conduit and cable raceways including- Flexible Metal Conduit@ Liquidtight Flexible Metal Conduit@ Liquidtight Flexible Nonmetallic Conduit@ Armored Cable@ Metal Clad Cable@ Tray Cable@ Mineral Insulated Cable@ Flexible Cord@ Nonmetallic Sheathed Cable@ and Service Entrance Cable. The family tree of the Conduit Fittings Industry is provided for reference in Appendix A. This standard also includes: cast metal outlet boxes and conduit bodies and covers that when designed for the purpose@ serve as a box intended to house conductor splices and/or wiring devices; and cast metal junction boxes@ pull boxes and covers. This standard does not include standard conduit couplings of the type provided with lengths of Rigid and Intermediate Metal Conduit@ or threaded conduit nipples@ or threaded or unthreaded factory made bends derived from Rigid and Intermediate Metal Conduit or Electrical Metallic Tubing. This standard does not apply to fittings@ boxes or enclosures that are for use in Class I@ Division 1; Class II@ Division 1; Class III@ Division 1; Class I@ Zones 0@ 1@ 2; Zones 20@ 21@ or 22 hazardous (classified) locations. Exceptions are those ordinary (unclassified) location fittings and enclosures which are specifically permitted by the National Electrical Code? in these locations.
NEMA FB 1-2012 history
2014NEMA FB 1-2014 Fittings, Cast Metal Boxes, and Conduit Bodies for Conduit, Electrical Metallic Tubing, and Cable
2012NEMA FB 1-2012 Fittings@ Cast Metal Boxes@ and Conduit Bodies for Conduit@ Electrical Metallic Tubing@ and Cable
2007NEMA FB 1-2007 Fittings@ Cast Metal Boxes@ and Conduit Bodies for Conduit@ Electrical Metallic Tubing@ and Cable (Includes Amendment 2010)
2003NEMA FB 1-2003 Fittings, Cast Metal Boxes, and Conduit Bodies for Conduit, Electrical Metallic Tubing, and Cable
2001NEMA FB 1-2001 Fittings@ Cast Metal Boxes@ and Conduit Bodies for Conduit@ Electrical Metallic Tubing and Cable
1993NEMA FB 1-1993 Fittings@ Cast Metal Boxes@ and Conduit Bodies for Conduit and Cable Assemblie (Revision No. 1 - August 1993)
1988NEMA FB 1-1988 FITTINGS@ CAST METAL BOXES@ AND CONDUIT BODIES FOR CONDUIT AND CABLE ASSEMBLIES
1983NEMA FB 1-1983 FITTINGS@ CAST METAL BOXES@ AND CONDUIT BODIES FOR CONDUIT AND CABLE ASSEMBLIES; REVISION 1 - SEPTEMBER 1984