BS EN 50091-1:1993
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
General and safety requirementsSpecification for uninterruptible power systems (UPS)
Hardcopy , PDF
English
15-10-1993
19-03-2003
Cooperating organizations
National foreword
Foreword
1 General
1.1 Scope
1.2 Definitions
1.3 General requirements
1.4 General conditions for tests
1.5 Components
1.6 Power interface
1.7 Marking and instructions
2 Fundamental design requirements
2.1 Protection against electric shock and energy
hazards
2.2 Insulation
2.3 Safety Extra-Low Voltage (SELV)
2.4 Limited current circuits
2.5 Provisions for protective earthing
2.6 A.C. and D.C. power isolation
2.7 Overcurrent and earth fault protection
2.8 Protection of personnel - safety interlocks
2.9 Clearances, creepage distances and distances
through insulation
2.10 External signalling circuits
2.11 Limited power source
2.12 Protection of the applied load
3 Wiring, connections and supply
3.1 General
3.2 Connection to power
3.3 Wiring terminals for external power conductors
4 Physical requirements
4.1 Stability and mechanical hazards
4.2 Mechanical strength and stress relief
4.3 Construction details
4.4 Resistance to fire
4.5 Battery location
5 Thermal and electrical requirements
5.1 Heating
5.2 Earth leakage currents
5.3 Electric strength
5.4 Abnormal operating and fault conditions
Annexes
A (normative) Test for resistance to heat and fire
B (normative) Motor test under abnormal conditions
C (normative) Transformers
D (normative) Measuring instruments for earth
leakage current test
E (normative) Temperature rise of a winding
F (normative) Measurements of creepage distances and
clearances
G (normative) Earth leakage current for equipment
intended to be connected directly to IT power
systems
H (informative) Guidance on protection against
ingress of water and foreign objects
J (informative) Table of electrochemical potentials
K (normative) Thermal controls
L (normative) Backfeed protection test
M (normative) Examples of normal load conditions
N (normative) Ventilation of battery compartments
P (normative) Normative references to International
Publications
Q (informative) A-Deviations
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-references
Applicable to electronic indirect a.c. convertor systems with an electrical energy storage device in the d.c. link.
| Committee |
PEL/22
|
| DevelopmentNote |
DRAFT FOR COMMENT 91/27317 DC
|
| DocumentType |
Standard
|
| Pages |
34
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| DIN EN 50091-1 : 1994 | Identical |
| NEN EN 50091-1 : 1994 | Identical |
| EN 50091-1 : 93 AC 93 | Identical |
| I.S. EN 50091-1:1993 | Identical |
| NF EN 50091-1 : 1993 | Identical |
| NBN EN 50091-1 : 1994 | Identical |
| UNE-EN 50091-1:1996 | Identical |
| BS 7083:1996 | Guide to the accommodation and operating environment for information technology (IT) equipment |
| ASHRAE 90.4 : 2016 | ENERGY STANDARD FOR DATA CENTERS |
| IEC 60146-4:1986 | Semiconductor convertors. Part 4: Method of specifying the performance and test requirements of uninterruptible power systems |
| IEC 60127:1974 | Cartridge fuse-links for miniature fuses |
| IEC 60950:1999 | Safety of information technology equipment |
| IEC 60925:1989+AMD1:1996+AMD2:2001 CSV | DC supplied electronic ballasts for tubular fluorescent lamps - Performance requirements |
| IEC 61000-2-2:2002+AMD1:2017 CSV | Electromagnetic compatibility (EMC) - Part 2-2: Environment - Compatibility levels for low-frequency conducted disturbances and signalling in public low-voltage power supply systems |
| ISO 7000:2014 | Graphical symbols for use on equipment — Registered symbols |
Please Login or Create an Account so you can add users to your Multi user PDF Later.
Important note : All end users must be registered with an Account prior to user licenses being assigned.
Users cannot be edited or removed once added to your Multi user PDF.