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UL 1990

UL Standard for Safety Nonmetallic Underground Conduit with Conductors

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Organization: UL
Publication Date: 22 November 2013
Status: active
Page Count: 25
scope:

These requirements cover nonmetallic underground conduit with conductors. These products consist of a factory assembly of conductors or cables inside a coilable, smooth-wall, continuous length conduit with a circular cross section. The conduit is Schedule-40, Schedule-80, EPEC-A or EPEC-B High Density Polyethylene (HDPE) in trade sizes 1/2 (16) - 4 (103). This product is intended for installation in accordance with the National Electrical Code, NFPA 70. The values in parentheses are metric trade designators of conduit. The designations Schedule-40, Schedule-80, EPEC-A and EPEC-B refer to conduit having specific outside diameters and wall thicknesses.

This product is for aboveground use where encased in not less than 2 inches (51 mm) of concrete and for underground use by direct burial or encasement in concrete.

Document History

UL 1990
November 22, 2013
UL Standard for Safety Nonmetallic Underground Conduit with Conductors
These requirements cover nonmetallic underground conduit with conductors. These products consist of a factory assembly of conductors or cables inside a coilable, smooth-wall, continuous length...
November 22, 2013
UL Standard for Safety Nonmetallic Underground Conduit with Conductors
These requirements cover nonmetallic underground conduit with conductors. These products consist of a factory assembly of conductors or cables inside a coilable, smooth-wall, continuous length...
August 18, 2005
UL Standard for Safety Nonmetallic Underground Conduit with Conductors
These requirements cover nonmetallic underground conduit with conductors. These products consist of a factory assembly of conductors or cables inside a coilable, smooth-wall, continuous length...
August 18, 2005
UL Standard for Safety Nonmetallic Underground Conduit with Conductors
A description is not available for this item.
August 18, 2005
UL Standard for Safety Nonmetallic Underground Conduit with Conductors
These requirements cover nonmetallic underground conduit with conductors. These products consist of a factory assembly of conductors or cables inside a coilable, smooth-wall, continuous length...
August 18, 2005
UL Standard for Safety Nonmetallic Underground Conduit with Conductors
These requirements cover nonmetallic underground conduit with conductors. These products consist of a factory assembly of conductors or cables inside a coilable, smooth-wall, continuous length...
April 30, 1998
UL Standard for Safety Nonmetallic Underground Conduit with Conductors
A description is not available for this item.
April 30, 1998
UL Standard for Safety Nonmetallic Underground Conduit with Conductors
A description is not available for this item.
April 16, 1997
Outline of Investigation for Nonmetallic Underground Conduit with Conductors
A description is not available for this item.

References

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