SIST EN 300 132-3 V1.2.1:2006
(Main)Environmental Engineering (EE); Power supply interface at the input to telecommunications equipment; Part 3: Operated by rectified current source, alternating current source or direct current source up to 400 V
- Abstract
The present document contains requirements for:
• the output performance of the power equipment at the interface A3;
• the input of the telecommunications equipment connected to interface A3.
The voltage at interface A3 may be the ac mains, a rectified voltage derived from ac three phase mains, a rectified voltage derived from ac single phase mains or a low voltage derived from a battery. The power supply equipment may incorporate a backup battery.
The present document aims at providing compatibility between the power supply equipment and both the telecommunications equipment, and the different load units connected to the same interface A3 (e.g. datacom equipment).
The requirements at interface A3 apply to:
• the output of the power supply equipment or power supply installation of telecommunications centres;
• the power supply input of telecommunications equipment and the datacom equipment installed at telecommunications centres;
• telecommunications equipment and the datacom equipment, installed in customer's premises, whose power interface A3 is also used by equipment requiring a supply to the present document. The purpose of the present document is:
• to identify a power supply system with the same characteristics for all telecommunications and data communication equipment defined in the area of application;
• to facilitate interworking of different (types of) loads units;
• to facilitate the standardization of power supply systems for telecommunications and datacom equipment;
• to facilitate the installation, operation and maintenance in the same network of equipment and telecommunications and datacom systems from different origins.
- Status
- Published
- Publication Date
- 31-Jan-2006
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Feb-2006
- Due Date
- 01-Feb-2006
- Completion Date
- 01-Feb-2006
SIST EN 300 132-3 V1.2.1:2006 is the Slovenian adoption of ETSI EN 300 132-3 Version 1.2.1 for the power supply interface at the input to telecommunications equipment. It specifies interface A3 for equipment operated from rectified current, alternating current, or direct current sources up to 400 V, so power systems, telecommunications equipment, and datacom equipment can be matched on the same supply.
What does SIST EN 300 132-3 V1.2.1:2006 specify?
SIST EN 300 132-3 V1.2.1:2006 sets requirements for the output of the power supply equipment at interface A3 and for the input of the telecommunications equipment connected to that interface. It is organized into scope, references, definitions and abbreviations, interface A3, requirements, earthing and bonding, electrical safety requirements, EMC requirements, and informative annexes.
| Annex | What it covers |
|---|---|
| A | Power supply considerations and voltage waveforms |
| B | Identification of interface A3 |
| C | Calculation of extreme voltage nominal values at interface A3 |
| D | Calculation of extreme voltage nominal values when other nominal voltages are used |
| E | Bibliography |
The scope covers telecommunications centres and customer premises where interface A3 is shared by telecommunications equipment and datacom equipment. The document is written to support interoperability, standardization of supply systems, and easier installation, operation, and maintenance across equipment from different origins.
What are the key requirements of SIST EN 300 132-3 V1.2.1:2006?
Clause 4 defines interface A3 as the physical point between the power supply system and the equipment. In practice, this is the point where the supply conditions must be met, even if the exact location is agreed differently during installation.
Voltage and frequency
Clause 5.1 sets the nominal voltage for equipment connected to interface A3 at 230 Vrms. Clause 5.2 defines the normal service voltage range, with a maximum peak voltage of 375 V and a minimum rms voltage of 188 V. Clause 5.3 sets the nominal frequency at 50 Hz for direct ac supply and identifies ripple frequencies of 300 Hz for rectified three-phase supply and 100 Hz for rectified single-phase supply.
Behavior outside normal service
Clause 5.4 requires equipment to survive steady-state abnormal voltages below the normal service range without damage, and to resume normal operation when supply returns to normal. For dips, short interruptions and transients, the document points to the relevant EMC standards and requires the power supply to keep any interruption at interface A3 shorter than 20 ms.
Protection, current and inrush
Clause 5.5 requires supply protection by fuses or circuit breakers for ac, rectified ac, or dc operation, and says the inrush energy must be considered in the supply design. Clause 5.6 limits the current drain at voltages in the normal and abnormal ranges to no more than 1.5 times the current at nominal voltage for periods longer than 1 second. Clause 5.7 then controls surge current on connection: the inrush current ratio is limited, and the measurement uses a defined test circuit with a Line Impedance Stabilization Network (LISN).
Earthing, safety and EMC
Clause 6 states that earthing and bonding follow IEC 60364-4-44 and IEC 60364-5-54. It also allows the battery to be earthed or floating, with additional protection needed for floating operation, and requires the neutral N to be earthed at the source. Clauses 7 and 8 state that safety and EMC are covered by the relevant safety and EMC standards.
What terms does SIST EN 300 132-3 V1.2.1:2006 define?
- interface A3 - The physical point where the power supply connects to telecommunications and datacom equipment.
- normal service voltage range - The steady-state voltage range in which equipment must maintain normal service.
- abnormal voltage range - A steady-state voltage range outside normal service where the equipment is expected to survive undamaged.
- load unit - Power-consuming equipment that is part of a system block.
- system block - A functional group of equipment that depends on the same power supply for operation and performance.
- Uninterrupted Power Supply (UPS) - A backup power source used when ac input fails.
- Line Impedance Stabilization Network (LISN) - The network used in the surge-current measurement circuit.
Who uses SIST EN 300 132-3 V1.2.1:2006?
This standard is used by designers of telecommunications power supplies, telecommunications equipment, and datacom equipment. It is also used by installers, integrators, test laboratories, quality managers, and buyers who need the supply interface, voltage range, protection, and inrush behavior to be compatible across mixed equipment in telecommunications centres and customer premises.
Which standards are used with SIST EN 300 132-3 V1.2.1:2006?
- IEC 60364-4-44 - Provides the protection against voltage disturbances and electromagnetic disturbances referenced for earthing and bonding context.
- IEC 60364-5-54 - Provides rules for earthing arrangements, protective conductors, and protective bonding conductors.
- CENELEC HD 472 S1 - Provides the nominal voltage basis for low-voltage public electricity supply systems.
- CISPR 16-1 - Provides the measuring apparatus and methods referenced for the surge-current test circuit.
- ETSI EN 300 132-1 - Companion part for equipment operated by alternating current derived from direct current sources.
- ETSI EN 300 132-2 - Companion part for equipment operated by direct current.
What does the SIST EN 300 132-3 V1.2.1:2006 document contain?
The document gives the interface A3 definition, the nominal voltage and frequency conditions, the normal and abnormal service voltage ranges, and the current and inrush limits. It also includes the measurement approach for surge current, with a defined test circuit and worst-case phase-angle evaluation. Annex A explains possible power supply configurations and waveform types, Annex B shows how interface A3 is identified, and Annexes C and D explain how the voltage limits are derived.
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Frequently Asked Questions
SIST EN 300 132-3 V1.2.1:2006 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Environmental Engineering (EE); Power supply interface at the input to telecommunications equipment; Part 3: Operated by rectified current source, alternating current source or direct current source up to 400 V". This standard covers: The present document contains requirements for: • the output performance of the power equipment at the interface A3; • the input of the telecommunications equipment connected to interface A3. The voltage at interface A3 may be the ac mains, a rectified voltage derived from ac three phase mains, a rectified voltage derived from ac single phase mains or a low voltage derived from a battery. The power supply equipment may incorporate a backup battery. The present document aims at providing compatibility between the power supply equipment and both the telecommunications equipment, and the different load units connected to the same interface A3 (e.g. datacom equipment). The requirements at interface A3 apply to: • the output of the power supply equipment or power supply installation of telecommunications centres; • the power supply input of telecommunications equipment and the datacom equipment installed at telecommunications centres; • telecommunications equipment and the datacom equipment, installed in customer's premises, whose power interface A3 is also used by equipment requiring a supply to the present document. The purpose of the present document is: • to identify a power supply system with the same characteristics for all telecommunications and data communication equipment defined in the area of application; • to facilitate interworking of different (types of) loads units; • to facilitate the standardization of power supply systems for telecommunications and datacom equipment; • to facilitate the installation, operation and maintenance in the same network of equipment and telecommunications and datacom systems from different origins.
The present document contains requirements for: • the output performance of the power equipment at the interface A3; • the input of the telecommunications equipment connected to interface A3. The voltage at interface A3 may be the ac mains, a rectified voltage derived from ac three phase mains, a rectified voltage derived from ac single phase mains or a low voltage derived from a battery. The power supply equipment may incorporate a backup battery. The present document aims at providing compatibility between the power supply equipment and both the telecommunications equipment, and the different load units connected to the same interface A3 (e.g. datacom equipment). The requirements at interface A3 apply to: • the output of the power supply equipment or power supply installation of telecommunications centres; • the power supply input of telecommunications equipment and the datacom equipment installed at telecommunications centres; • telecommunications equipment and the datacom equipment, installed in customer's premises, whose power interface A3 is also used by equipment requiring a supply to the present document. The purpose of the present document is: • to identify a power supply system with the same characteristics for all telecommunications and data communication equipment defined in the area of application; • to facilitate interworking of different (types of) loads units; • to facilitate the standardization of power supply systems for telecommunications and datacom equipment; • to facilitate the installation, operation and maintenance in the same network of equipment and telecommunications and datacom systems from different origins.
SIST EN 300 132-3 V1.2.1:2006 is classified under the following ICS (International Classification for Standards) categories: 19.040 - Environmental testing; 33.050.01 - Telecommunication terminal equipment in general. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 132-3 V1.2.1:2006 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2006
2NROMVNLLQåHQLULQJ (( ±1DSDMDOQLYPHVQLNQDYKRGXYWHOHNRPXQLNDFLMVNR
RSUHPR±GHO 1DSDMDQMH]XVPHUMHQLPWRNRYQLPYLURPL]PHQLþQRQDSHWRVWMRDOL
HQRVPHUQRQDSHWRVWMRGR9
Environmental Engineering (EE); Power supply interface at the input to
telecommunications equipment; Part 3: Operated by rectified current source, alternating
current source or direct current source up to 400 V
Ta slovenski standard je istoveten z: EN 300 132-3 Version 1.2.1
ICS:
19.040 Preskušanje v zvezi z Environmental testing
okoljem
33.050.01 Telekomunikacijska Telecommunication terminal
terminalska oprema na equipment in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
European Standard (Telecommunications series)
Environmental Engineering (EE);
Power supply interface at the input to
telecommunications equipment;
Part 3: Operated by rectified current source,
alternating current source or
direct current source up to 400 V
2 ETSI EN 300 132-3 V1.2.1 (2003-08)
Reference
DEN/EE-02001-3
Keywords
environment, interface, power supply
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ETSI
3 ETSI EN 300 132-3 V1.2.1 (2003-08)
Contents
Intellectual Property Rights.4
Foreword.4
1 Scope.5
2 References.5
3 Definitions and abbreviations.6
3.1 Definitions.6
3.2 Abbreviations.6
4 Interface A3.7
5 Requirements.7
5.1 Nominal voltage.7
5.2 Normal service voltages at interface A3.8
5.3 Nominal frequencies.8
5.4 Abnormal service voltage ranges at interface A3.8
5.4.1 Abnormal service voltage under steady-state conditions.8
5.4.2 Voltage dips, short interruptions and transients.8
5.5 Supply protection.9
5.6 Maximum current drain.9
5.7 Surge current on connection to interface A3 .9
5.7.1 Limits.9
5.7.2 Measurements.10
6 Earthing and bonding .11
7 Electrical safety requirements .11
8 EMC requirements.11
Annex A (informative): Power supply considerations.12
A.1 Possible power supply configurations.12
A.2 Supply voltage waveforms .13
Annex B (informative): Identification of interface A3 .14
Annex C (informative): Calculation of the extreme voltage nominal values at interface A3 .15
Annex D (informative): Calculation of the extreme voltage nominal values at interface A3 in
the case of using other nominal voltage .16
Annex E (informative): Bibliography.17
History .18
ETSI
4 ETSI EN 300 132-3 V1.2.1 (2003-08)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Environmental
Engineering (EE).
The present document concerns the requirements for the interface between telecommunications equipment and its
power supply and includes requirements relating to its stability and measurement. Various other references and detailed
measurement and test arrangements are contained in informative annexes.
The present document is part 3 of a multi-part deliverable covering Environmental Engineering (EE); Power supply
interface at the input to telecommunications equipment, as identified below:
Part 1: "Operated by alternating current (ac) derived from direct current (dc) sources";
Part 2: "Operated by direct current (dc)";
Part 3: "Operated by rectified current source, alternating current source or direct current source up to
400 V".
National transposition dates
Date of adoption of this EN: 25 July 2003
Date of latest announcement of this EN (doa): 31 October 2003
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 April 2004
Date of withdrawal of any conflicting National Standard (dow): 30 April 2004
ETSI
5 ETSI EN 300 132-3 V1.2.1 (2003-08)
1 Scope
The present document contains requirements for:
• the output performance of the power equipment at the interface A3;
• the input of the telecommunications equipment connected to interface A3.
The voltage at interface A3 may be the ac mains, a rectified voltage derived from ac three phase mains, a rectified voltage
derived from ac single phase mains or a low voltage derived from a battery. The power supply equipment may incorporate
a backup battery.
The present document aims at providing compatibility between the power supply equipment and both the
telecommunications equipment, and the different load units connected to the same interface A3 (e.g. datacom equipment).
The requirements at interface A3 apply to:
• the output of the power supply equipment or power supply installation of telecommunications centres;
• the power supply input of telecommunications equipment and the datacom equipment installed at
telecommunications centres;
• telecommunications equipment and the datacom equipment, installed in customer's premises, whose power
interface A3 is also used by equipment requiring a supply to the present document.
The purpose of the present document is:
• to identify a power supply system with the same characteristics for all telecommunications and data
communication equipment defined in the area of application;
• to facilitate interworking of different (types of) loads units;
• to facilitate the standardization of power supply systems for telecommunications and datacom equipment;
• to facilitate the installation, operation and maintenance in the same network of equipment and
telecommunications and datacom systems from different origins.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
[1] IEC 60364-4-44: "Electrical installations of buildings - Part 4-44: Protection for safety - Protection
against voltage disturbances and electromagnetic disturbances".
[2] IEC 60364-5-54: "Electrical installations of buildings - Part 5-54: Selection and erection of
electrical equipment - Earthing arrangements, protective conductors and protective bonding
conductors".
[3] CENELEC HD 472 S1: "Nominal voltage for low-voltage public electricity supply systems".
ETSI
6 ETSI EN 300 132-3 V1.2.1 (2003-08)
[4] CISPR 16-1: "Specification for radio disturbance and immunity measuring apparatus and methods
Part 1: Radio disturbance and immunity measuring apparatus".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
abnormal voltage range: range of steady-state voltages over which the equipment will not be expected to maintain
normal service but will survive undamaged
customer premises: any location which is the sole responsibility of the customer
datacom equipment: information technology equipment
interface A3: interface, physical point, at which power supply is connected to the telecommunications and datacom
equipment
load unit: power consuming equipment, that is part of a system block
nominal load conditions: set of values dedicated to a test performance
nominal voltage value: nominal value of the voltage that designates the type of supply
normal service: service mode where telecommunications equipment operates within its specification
normal service voltage range: range of the steady-state voltage over which the equipment will maintain normal
service
power supply: power supply to which telecommunications equipment is intended to be connected
system block: functional group of equipment depending for its operation and performance on its connection to the same
power supply
telecommunication centre: any location where telecommunications equipment is installed and is the sole responsibility
of the operator
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ac alternating current (also when used as a suffix to units of measurement)
AMN Artificial Mains Network
dc direct current (also when used as a suffix to units of measurement)
EUT Equipment Under Test
EMC Electric Magnetic Compatibility
Im maximum current
It Instantaneous surge current
LISN Line Impedance Stabilization Network
PE Protective Earth
R Resistance of resistive element of LISN
rms root mean square (also when used as a suffix to units of measurement)
UPS Uninterrupted Power Supply
ETSI
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