The requirements cover Type EB and Type A extruded rigid PVC (polyvinyl chloride) electrical conduit and fittings consisting of elbows and other bends made from and for use with these types of conduit; Extruded rigid Schedule 40 high-density PE (polyethylene) electrical conduit and thefollowing fittings: Elbows and other bends from and for use with this conduit and Rigid high-density PE couplings for use with this conduit.
UL 651A-2000 history
2017UL 651A BULLETIN-2017 UL Standard for Safety Type EB and A Rigid PVC Conduit and HDPE Conduit (COMMENTS DUE: February 27@ 2017)
1970UL 651A-2017 UL Standard for Safety Type EB and A Rigid PVC Conduit and HDPE Conduit
2016UL 651A BULLETIN-2016 UL Standard for Safety Type EB and A Rigid PVC Conduit and HDPE Conduit (COMMENTS DUE: November 28@ 2016)
2011UL 651A CRD-2011 UL Standard for Safety Schedule 40 and 80 High Density Polyethylene (HDPE) Conduit - Section/Paragraph Reference: Table 13.1 Subject: Crushing load values for 2-1/2 trade size (Edition 4: October 31@ 2000)
2011UL 651A BULLETIN-2011 UL Standard for Safety Type EB and A Rigid PVC Conduit and HDPE Conduit (COMMENTS DUE: MAY 11@ 2011)
2011UL 651A-2011 UL Standard for Safety Schedule 40 and 80 High Density Polyethylene (HDPE) Conduit (Fifth Edition; Reprint with revisions through and including December 9@ 2016)
2010UL 651A CRD-2010 UL Standard for Safety Schedule 40 and 80 High Density Polyethylene (HDPE) Conduit - Section/Paragraph Reference: Table 13.1 Subject: Crushing load values (Edition 4: October 31@ 2000)
2010UL 651A BULLETIN-2010 UL Standard for Safety Type EB and A Rigid PVC Conduit and HDPE Conduit (COMMENTS DUE: SEPTEMBER 24@ 2010)
2003UL 651A BULLETINS-2003 UL Standard for Safety Type EB and A Rigid PVC Conduit and HDPE Conduit (06/06/2003 (4p); 03/14/2003 (18p))
2000UL 651A-2000 UL Standard for Safety Type EB and A Rigid PVC Conduit and HDPE Conduit Fourth Edition; Revisions Through and Including September 6, 2007
1995UL 651A-1995 Type EB and A rigid PVC conduit and HDPE conduit
1989UL 651A-1989 Type EB and A rigid PVC conduit and HDPE conduit