AS 62040.1.2-2003

1 - AS 62040.1.2-2003 UNINTERRUPTIBLE POWER SYSTEMS (UPS) - GENERAL AND SAFETY REQUIREMENTS FOR UPS USED IN RESTRICTED ACCESS...
4 - PREFACE
5 - CONTENTS
7 - 1 Scope and specific applications
7 - 1.1 Scope
7 - 1.2 Specific applications
8 - 2 Normative references
9 - 3 Definitions
9 - 3.1 General
9 - 3.1.1 uninterruptible power system (UPS)
9 - 3.1.2 continuity of load power
9 - 3.1.3 bypass
10 - 3.1.4 power failure
10 - 3.1.5 primary power
10 - 3.1.6 active power
10 - 3.1.7 apparent power
10 - 3.1.8 rated voltage
10 - 3.1.9 rated voltage range
10 - 3.1.10 rated current
10 - 3.1.11 backfeed
10 - 3.2 Operating conditions
10 - 3.2.1 reference load
10 - 3.2.2 linear load
11 - 3.2.3 non-linear load
11 - 3.2.4 stored energy mode
11 - 3.3 Equipment mobility
11 - 3.4 Insulation classes of UPS
11 - 3.5 Connection to the supply
11 - 3.6 Enclosures
11 - 3.7 Accessibility
12 - 3.8 Circuits and circuit characteristics
12 - 3.8.1 Hazardous voltage
12 - 3.9 Insulation
12 - 3.10 Creepage distances and clearances
12 - 3.11 Components
12 - 3.12 Power distribution
12 - 3.13 Flammability
12 - 3.14 Miscellaneous
12 - 3.14.1 type test
12 - 3.15 Telecommunication networks
13 - 4 General requirements
13 - 4.1 UPS design and construction
13 - 4.2 User information
13 - 4.3 Classification of UPS
13 - 4.4 General conditions for tests
13 - 4.5 Operating parameters for tests
14 - 4.6 Loads for tests
14 - 4.7 Components
14 - 4.8 Power interfaces
14 - 4.9 Marking and instructions
14 - 4.9.1 General
14 - 4.9.2 Power rating
15 - 4.9.3 Safety instructions
16 - 4.9.4 Main voltage adjustment
16 - 4.9.5 Power outlets
16 - 4.9.6 Fuses
16 - 4.9.7 Wiring terminals
17 - 4.9.8 Battery terminals
17 - 4.9.9 Controls and indicators
17 - 4.9.10 Isolation of multiple power sources
17 - 4.9.11 IT power systems
17 - 4.9.12 Protection in building installation
17 - 4.9.13 High leakage current
17 - 4.9.14 Thermostats and other regulating devices
17 - 4.9.15 Language
17 - 4.9.16 Durability of markings
17 - 4.9.17 Removable parts
17 - 4.9.18 Replaceable batteries
18 - 4.9.19 Operator access with a tool
18 - 4.9.20 Battery
19 - 4.9.21 Signalling circuits
19 - 4.9.22 Internal circuit configuration
19 - 5 Fundamental design requirements
19 - 5.1 Protection against electric shock and energy hazards
20 - 5.2 SELV
20 - 5.3 Emergency switching device
20 - 5.4 Backfeed protection
21 - 5.5 Insulation
21 - 5.5.1 Determination of working voltage
21 - 5.6 Safety extra-low voltage (SELV) circuits
22 - 5.7 Limited current circuits
22 - 5.8 Provisions for protective earthing
22 - 5.9 AC and d.c. power isolation
23 - 5.10 Overcurrent and earth fault protection
23 - 5.10.1 Basic requirements
23 - 5.10.2 Battery circuit protection
23 - 5.10.3 Location of protective device
24 - 5.10.4 Rating of protective device
24 - 5.11 Service person protection
24 - 5.11.1 Covers
24 - 5.11.2 Location and guarding of parts
24 - 5.11.3 Parts on doors
25 - 5.11.4 Component access
25 - 5.11.5 Moving parts
25 - 5.11.6 Capacitor banks
25 - 5.11.7 Internal batteries
25 - 5.12 Clearances, creepage distances and distances through insulation
25 - 5.13 External signalling circuits
25 - 5.14 Limited power source
26 - 6 Wiring, connections and supply
26 - 6.1 General
26 - 6.1.1 Dimensions and ratings of busbars and insulated conductors
26 - 6.2 Connection to power sources
26 - 6.3 Wiring terminals for external power conductors
27 - 7 Physical requirements
27 - 7.1 Enclosure
28 - 7.2 Stability
28 - 7.3 Construction details
29 - 7.3.1 Gas concentration
29 - 7.3.2 Equipment movement
29 - 7.4 Resistance to fire
29 - 7.5 Battery location
29 - 7.5.1 Accessibility and maintainability
29 - 7.5.2 Vibration
29 - 7.5.3 Distance
30 - 7.5.4 Insulation
30 - 7.5.5 Wiring
30 - 7.5.6 Electrolyte spillage
30 - 7.5.7 Ventilation
30 - 7.5.8 Charging voltages
31 - 7.6 Temperature rise
31 - 8 Electrical requirements and simulated abnormal conditions
31 - 8.1 General
31 - 8.1.1 Earth leakage current
31 - 8.1.2 Pluggable equipment type B UPS
32 - 8.2 Electric strength
32 - 8.3 Abnormal operating and fault conditions
32 - 8.3.1 Simulation of faults
32 - 8.3.2 Conditions for tests
33 - Annexes
34 - Annex H - Guidance on protection against ingress of water and foreign objects
36 - Annex L - Backfeed protection test
36 - L.1 General
36 - L.2 Test for pluggable equipment type A or pluggable equipment type B UPS
36 - L.3 Test for permanently connected UPS
36 - L.4 Single-fault conditions
38 - Annex M - Examples of reference load conditions
38 - M.1 General
38 - M.2 Reference resistive load
39 - M.3 Reference inductive-resistive load
39 - M.4 Reference capacitive-resistive loads
40 - M.5 Reference non-linear load
42 - Annex N - Ventilation of battery compartments
42 - N.1 Hydrogen concentration
42 - N.2 Blocked conditions
42 - N.3 Overcharge test
44 - Annex P - Minimum and maximum cross-sections of copper conductors suitable for connection (see 4.9.7)

Specifies general and safety requirements for low voltage electronic Uninterruptible Power Systems (UPS) installed in areas with restricted access. This Standard is to be read in conjunction with AS/NZS 60950.1.

This standard applies to electronic uninterruptible power systems with an electrical energy storage device in the d.c. link. It is to be used with IEC 60950-1 which is referred to in this standard as “RD”. When any item is referred to by the phrase “The definitions or the provisions of item/RD apply”, this phrase is intended to mean that the definitions or provisions in that item of IEC 60950-1 apply, except any which are clearly inapplicable to uninterruptible power systems. National requirements additional to those in IEC 60950-1 apply and are found as notes under relevant clauses of the RD. The primary function of the UPS covered by this standard is to ensure continuity of an alternating power source. The UPS may also serve to improve the quality of the power source by keeping it within specified characteristics. This standard is applicable to UPS which are movable, stationary, fixed or for building-in, for use on low-voltage distribution systems and intended to be installed in restricted access locations. It specifies requirements to ensure safety for the service person. This standard is intended to ensure the safety of installed UPS, both as a single UPS unit or as a system of interconnected UPS units, subject to installing, operating and maintaining the UPS in the manner prescribed by the manufacturer. This standard does not cover d.c. supplied electronic ballasts (IEC 60924 and IEC 60925) and UPS based on rotating machines. The relevant general and safety requirements for UPS intended to be installed in operator access areas are given in IEC 62040-1-1; electromagnetic compatibility (EMC) requirements and definitions are given in IEC 62040-2.

First published as AS 62040.1.2-2003.