by Michelle Vassallo, Senior Product Engineer, Industrial Products, General Cable
The NEMA Building Wire and Cable Group has four Standards that focus on application and installation guidelines for products that fall within the Section’s scope. The Standards offer practical information on the correct use and industry- recommended practices for the installation of those products following the National Electrical Code® (NEC), and they are under revision to incorporate changes from the 2020 edition of the NEC, with anticipated publication later this year.
The information provided in these Standards is useful to designers, specifiers, contractors, electricians, and anyone who wants to be sure the proper cable product is used and installed correctly. They are helpful reference guides with necessary information all in one place.
BUILDING WIRE AND CABLE APPLICATION AND INSTALLATION GUIDELINES
- NEMA RV 1-2016 Application and InstallationGuidelines for Armored Cable and Metal-CladCable applies to Type AC and Type MC cables and covers topics such as grounding, marking, harmonics, voltage drop, and ampacity.
- NEMA RV 2-2016 Application and InstallationGuidelines for Nonmetallic-Sheathed (NM-B)Cable and Underground Feeder and BranchCircuit (UF-B) Cable applies to Type NM-B and Type UF-B cables and covers topics on permitted and not permitted uses, cable preparation, supports, and cable damage.
- NEMA RV 3-2014 Application and InstallationGuidelines for Flexible and Liquidtight FlexibleMetal and Nonmetallic Conduits applies to flexible metal conduit, liquidtight flexible nonmetallic conduit, and liquidtight flexible steel conduit and covers fitting selection, environmental considerations, conduit prep, assembly torque, and attachment to boxes or enclosures and support systems.
- NEMA RV 4-2016 Application and InstallationGuidelines for Service-Entrance Cable applies to Type SE and Type USE cables and covers topics such as construction, securing and supporting cables, and installation location.
Other publications by the NEMA Building Wire and Cable Group include:
These documents, along with multiple Engineering Bulletins covering building wire and cable, are available for electronic download on the NEMA website at no cost. ei