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  • UL 1778:5ED 2014-06

    Current The latest, up-to-date edition.

    Uninterruptible Power Systems

    Available format(s):  Hardcopy

    Language(s):  English

    Published date:  13-06-2014

    Publisher:  Underwriters Laboratories

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    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    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

    Scope - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Development Note Also numbered as CSA C22.2.107.3. (04/2003)
    Document Type Standard
    Publisher Underwriters Laboratories
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    CSA C22.2 No. 62368-1 : 2014 AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS
    UFC 4-510-01 : Change 2 UNIFIED FACILITIES CRITERIA - DESIGN: MILITARY MEDICAL FACILITIES
    ANSI/CSA AMERICA FC 3-2004 (R2017) PORTABLE FUEL CELL POWER SYSTEMS
    CSA FC 3 : 2004 PORTABLE FUEL CELL POWER SYSTEMS
    NFPA 70 : 2017 NATIONAL ELECTRICAL CODE
    IEEE DRAFT 1184 : D21 2006 GUIDE FOR BATTERIES FOR UNINTERRUPTIBLE POWER SUPPLY SYSTEMS
    IEEE 1635-2012 IEEE/ASHRAE Guide for the Ventilation and Thermal Management of Batteries for Stationary Applications
    ASHRAE GUIDELINE 21 : 2012 VENTILATION AND THERMAL MANAGEMENT OF BATTERIES FOR STATIONARY APPLICATIONS
    UL 1963:4ED 2011-06 Refrigerant Recovery/Recycling Equipment
    UL 1076:6ED 2018-04 Proprietary Burglar Alarm Units and Systems
    UL 1008:8ED 2014-12 Transfer Switch Equipment
    IEEE 1184-2006 IEEE Guide for Batteries for Uninterruptible Power Supply Systems
    CSA C22.2 No. 178.1 : 2014 TRANSFER SWITCH EQUIPMENT
    IEEE 241 : 1990 ELECTRIC POWER SYSTEMS IN COMMERCIAL BUILDINGS
    ASHRAE 90.4 : 2016 ENERGY STANDARD FOR DATA CENTERS

    Standards Referencing This Book - (Show below) - (Hide below)

    CSA C22 NO. 4 : 2016 ENCLOSED AND DEAD-FRONT SWITCHES
    UL 514A:11ED 2013-02 Metallic Outlet Boxes
    UL 50:13ED 2015-10 Enclosures for Electrical Equipment, Non-Environmental Considerations
    UL 1439:5ED 2015-04 Tests for Sharpness of Edges on Equipment
    CSA C22.2 No. 5 : 2013 MOLDED-CASE CIRCUIT BREAKERS, MOLDED-CASE SWITCHES AND CIRCUIT-BREAKER ENCLOSURES
    UL 5085-3:1ED 2006-04 Low Voltage Transformers - Part 3: Class 2 and Class 3 Transformers
    CSA C22.2 No. 29 : 2015 PANELBOARDS AND ENCLOSED PANELBOARDS
    UL 61131-2:2ED 2008-06 Programmable Controllers - Part 2: Equipment Requirements and Tests
    CSA C22.2 No. 60065 : 2016 AUDIO, VIDEO AND SIMILAR ELECTRONIC APPARATUS - SAFETY REQUIREMENTS
    CSA C22.2 No. 77 : 2014 MOTORS WITH INHERENT OVERHEATING PROTECTION
    UL 1437:4ED 2006-12 Standard for Electrical Analog Instruments - Panel Board Types
    CSA C22.2 NO. 184:15 (R2019) Solid-state lighting controls
    UL 506:14ED 2017-06 Specialty Transformers
    CSA C22.2 No. 0.4 : 2004(R2013) BONDING OF ELECTRICAL EQUIPMENT
    UL 248-8:3ED 2011-05 Low-Voltage Fuses - Part 8: Class J Fuses
    UL 4248-11:1ED 2007-02 Fuseholders - Part 11: Type C (Edison Base) and Type S Plug Fuse
    CSA C22.2 No. 21 : 2014 CORD SETS AND POWER-SUPPLY CORDS
    UL 900:8ED 2015-04 Air Filter Units
    UL 1283:7ED 2017-05 Electromagnetic Interference Filters
    CSA C22.2 No. 24 : 2015 TEMPERATURE-INDICATING AND -REGULATING EQUIPMENT
    UL 2200:2ED 2012-06 Standard for Stationary Engine Generator Assemblies
    UL 83:16ED 2017-07 Standard for Thermoplastic-Insulated Wires and Cables
    UL 1008:8ED 2014-12 Transfer Switch Equipment
    UL 4248-9:1ED 2007-02 Fuseholders - Part 9: Class K
    C22.2 NO. 43-17 Lampholders (Binational standard with UL 496)
    CSA C22.2 No. 178.1 : 2014 TRANSFER SWITCH EQUIPMENT
    UL 514C:4ED 2014-04 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 Low-Voltage Fuses - Part 3: Class CA and CB Fuses
    CSA C22.2 No. 65 : 2013 WIRE CONNECTORS
    UL 248-12:3ED 2011-05 Low-Voltage Fuses - Part 12: Class R Fuses
    UL 248-11:3ED 2011-05 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 Low-Voltage Fuses - Part 4: Class CC Fuses
    CSA C22.2 No. 0.15 : 2015 ADHESIVE LABELS
    C22.2 NO. 8-13 (R2018) Electromagnetic interference (EMI) filters
    UL 248-10:3ED 2011-05 Low-Voltage Fuses - Part 10: Class L Fuses
    UL 248-9:2ED 2000-08 Standard for Low-Voltage Fuses - Part 9: Class K Fuses
    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 Polymeric Materials - Short Term Property Evaluations
    UL 248-1 : 3 LOW-VOLTAGE FUSES - PART 1: GENERAL REQUIREMENTS
    UL 248-2:2ED 2000-08 Low-Voltage Fuses - Part 2: Class C Fuses
    UL 60730-1:5ED 2016-08 Automatic Electrical Controls - Part 1: General Requirements
    UL 924:10ED 2016-05 Emergency Lighting and Power Equipment
    UL 4248-6:1ED 2007-02 Fuseholders - Part 6: Class H
    CSA C22.2 No. 226 : 1992 PROTECTORS IN TELECOMMUNICATION NETWORKS
    UL 4248-15:1ED 2007-02 Fuseholders - Part 15: Class T
    UL 1577:5ED 2014-04 Optical Isolators
    UL 4248-4:1ED 2007-02 Fuseholders - Part 4: Class CC
    CSA C22.2 No. 14 : 2013 INDUSTRIAL CONTROL EQUIPMENT
    CSA C22.2 No. 55 : 2015 SPECIAL USE SWITCHES
    UL 496:14ED 2017-09 Lampholders
    UL 248-5:2ED 2000-08 Standard for Low-Voltage Fuses - Part 5: Class G Fuses
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