UL 1778:5ED 2014-06-13
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The latest, up-to-date edition.
Uninterruptible Power Systems
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English
06-13-2014
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Preface
1 General
2 Protection from hazards
3 Wiring, connections, and supply
4 Physical requirements
5 Electrical requirements and simulated abnormal conditions
6 Connection to telecommunication networks
7 Connection to cable distribution systems
Annexes
Annex AAA (normative) - Additional component requirements
Annex BBB (informative) - Examples of NORMAL LOAD conditions
Annex CCC (informative) - Safety symbols and their meanings
Annex DDD (normative) - Harmonic distortion test
Annex EEE (normative) - Earthing and bonding
Annex FFF (normative) - BACKFEED PROTECTION test
Annex GGG (informative) - Principles of BACKFEED PROTECTION
Annex HHH (normative) - Ventilation of battery compartments
Annex III (normative) - Standards for components
Annex JJJ (normative) - French translations and markings
Annex LLL (informative) - Examples of US and Canadian
regulatory requirements
Annex MMM (normative) - Test and construction requirements
for UPS with fault current ratings higher than those
specified in Table NNN.5
Annex NNN (normative) - Short-circuit withstand rating
Annex OOO
Annex PPP (normative) - Manufacturing and production tests
This revision of ANSI/UL 1778 is being issued to include the following changes: Addition of dated reference to UL 60950 RD Update to references to the component requirements of the RD Update to Table 4.5.3.101A for temperature limits Revision to bus bar temperature limits Addition of symbol for no telecommunication network Corrections in Annex NNN for short-circuit withstand rating Addition of requirements and figure for short circuit withstand and short circuit closing test port location Updates to References
| DevelopmentNote |
Also numbered as CSA C22.2.107.3. (04/2003)
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| DocumentType |
Standard
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| Pages |
0
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| PublisherName |
Underwriters Laboratories
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| Status |
Current
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These requirements cover uninterruptible power supplies (UPS) rated 600 volts or less ac or dc that are intended for installation in accordance with the National Electrical Code, NFPA 70. During normal operation, the UPS allows the primary or normal power source to deliver ac power to the protected load through either the power conversion portion of the UPS or a bypass source.
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| IEEE 1635-2012 | IEEE/ASHRAE Guide for the Ventilation and Thermal Management of Batteries for Stationary Applications |
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| UL 83:16ED 2017-07-28 | Standard for Thermoplastic-Insulated Wires and Cables |
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| C22.2 NO. 43-17 | Lampholders (Binational standard with UL 496) |
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| UL 514C:4ED 2014-04-08 | Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers |
| CSA C22.2 No. 190 : 2014 | CAPACITORS FOR POWER FACTOR CORRECTION |
| UL 248-3:2ED 2000-08-01 | Low-Voltage Fuses - Part 3: Class CA and CB Fuses |
| CSA C22.2 No. 65 : 2013 | WIRE CONNECTORS |
| UL 248-12:3ED 2011-05-13 | Low-Voltage Fuses - Part 12: Class R Fuses |
| UL 248-11:3ED 2011-05-13 | Low-Voltage Fuses - Part 11: Plug Fuses |
| CSA E60730.1 : 2015 | Automatic electrical controls for household and similar use — Part 1: General requirements |
| UL 248-4:2ED 2000-08-01 | Low-Voltage Fuses - Part 4: Class CC Fuses |
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| CSA C22.2 No. 182.3 : 2016 | SPECIAL USE ATTACHMENT PLUGS, RECEPTACLES, AND CONNECTORS |
| C22.2 NO. 75-17 | Thermoplastic insulated wires and cables (Trinational standard with UL 83 and NMX-J-010-ANCE-2017) |
| CSA C22.2 No. 100 : 2014 | MOTORS AND GENERATORS |
| UL 746A:6ED 2012-09-06 | Polymeric Materials - Short Term Property Evaluations |
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| UL 60730-1:5ED 2016-08-03 | Automatic Electrical Controls - Part 1: General Requirements |
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| CSA C22.2 No. 226 : 1992 | PROTECTORS IN TELECOMMUNICATION NETWORKS |
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| UL 496:14ED 2017-09-05 | Lampholders |
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