EN IEC 62040-1 pdf download.UNINTERRUPTIBLE POWER SYSTEMS (UPS) – Part 1 : Safety requirements
1 Scope
This part of IEC 62040 applies to movable, stationary, fixed or built-in UPS for use in low- voltage distribution systems and that are intended to be installed in an area accessible by an ordinary person or in a restricted access area as applicable, that deliver fixed frequency AC output voltage with port voltages not exceeding 1 000 V AC or 1 500 V DC and that include an energy storage device. It applies to pluggable and to permanently connected UPS, whether consisting of a system of interconnected units or of independent units, subject to installing, operating and maintaining the UPS in the manner prescribed by the manufacturer. NOTE 1 Typical UPS configurations, including voltage and/or frequency converters and other topologies, are described in IEC 62040-3, the test and performance product standard for UPS. NOTE 2 UPS generally connect to their energy storage device through a DC link. A chemical battery is used throughout the standard as an example of an energy storage device. Alternative devices exist, and as such, where “battery” appears in the text of this document, this is to be understood as “energy storage device”. This document specifies requirements to ensure safety for the ordinary person who comes into contact with the UPS and, where specifically stated, for the skilled person. The objective is to reduce risks of fire, electric shock, thermal, energy and mechanical hazards during use and operation and, where specifically stated, during service and maintenance. This product standard is harmonized with the applicable parts of group safety publication IEC 62477-1 :201 2 for power electronic converter systems and contains additional requirements relevant to UPS. This document does not cover: • UPS that have a DC output; • systems for operation on moving platforms including, but not limited to, aircrafts, ships and motor vehicles; • external AC or DC input and output distribution boards covered by their specific product standard;
3 Terms and definitions
Clause 3 of IEC 62477-1 :201 2 applies, except as follows: Add the following new terms and definitions, and new notes:Note 1 to entry: Where the terms “voltage” and “current” are used, RMS values are implied unless otherwise specified. Note 2 to entry: Non-sinusoidal signals are measured with appropriate true RMS measuring instruments. 3.1 01 uninterruptible power system UPS combination of convertors, switches and energy storage devices (such as batteries), constituting a power system for maintaining continuity of load power in case of input power failure Note 1 to entry: Continuity of load power occurs when voltage and frequency are within rated steady-state and transient tolerance bands, and with distortion and interruptions within the limits specified for the output port. Input power failure occurs when voltage and frequency are outside rated steady-state and transient tolerance bands, or with distortion or interruptions outside the limits specified for the UPS. 3.1 02 skilled person person with relevant education and experience to enable him or her to perceive risks and to avoid hazards which the equipment can create Note 1 to entry: Such person has access to restricted access areas. [SOURCE: IEC 60050-1 95:1 998, 1 95-04-01 , modified – The word “(electrically)” has been deleted from the term, and “electricity” has been replaced by “the equipment” in the definition. The note has been added.] 3.1 03 instructed person person adequately advised or supervised by skilled persons to enable him or her to perceive risks and to avoid hazards which the equipment can create Note 1 to entry: Such person has access to restricted access areas. Note 2 to entry: Examples of activities performed by an instructed person can be found in IEC 61 1 40:2001 , Clause 8. [SOURCE: IEC 60050-1 95:1 998, 1 95-04-02, modified – The word “(electrically)” has been deleted from the term, and the notes have been added.]
EN IEC 62040-1 pdf download
