1.3 This standard does not directly apply to the following devices, but may be used to supplement the requirements within these standards when a device is evaluated to these standards:
a) Devices produced integrally with flexible cord or cable that are covered by the Standard for
Cord Sets and Power-Supply Cords, UL 817;
b) Devices intended for connection to the branch circuit, such as attachment plugs, cord connectors, receptacles, inlets, and outlets, that are covered by the Standard for Attachment Plugs and Receptacles, UL 498;
c) Devices solely intended for direct connection to the branch circuit in accordance with the
National Electrical Code, NFPA 70, and that are provided with contacts of the pin and sleeve
type, that are covered by the Standard for Plugs, Receptacles, and Cable Connectors of the Pin and Sleeve Type, UL 1682;
d) Devices consisting of wiring terminals and supporting blocks intended for the connection of wiring that are covered by the Standard for Terminal Blocks, UL 1059;
e) Devices intended for use with telecommunications networks, that are covered by the
Standard for Information Technology Equipment – Safety – Part 1: General Requirements, UL
60950-1, or the Standard for Communications Circuit Accessories, UL 1863;
f) Devices such as wire connectors and soldering lugs that are covered by the Standards for Wire Connectors, UL 486A-486B; Splicing Wire Connectors, UL 486C; or Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors, UL 486E;
UL COPYRIGHTED MATERIAL –
NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL
6 UL 1977
DECEMBER 7, 2007
g) Devices such as quick-connect terminals that are covered by the Standard for Electrical
Quick-Connect Terminals, UL 310.
1.4 The requirements in this standard may not entirely address all possible situations due to the wide variety of products and designs. In those situations, UL 498 may be used to supplement the requirements
in this standard. Where a conflict exists between the requirements of UL 498 and UL 1977, the requirements of UL 1977 shall take precedence.