ETSI ES 202 999 V1.1.1 (2010-11)

SLOVENSKI STANDARD
SIST ES 202 999 V1.1.1:2012
01-marec-2012
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SAFETY - Remote Power Feeding Installations - Safety requirements for the erection
and operation of information technology installations with remote power feeding
Ta slovenski standard je istoveten z: ES 202 999 Version 1.1.1
ICS:
35.200 Vmesniška in povezovalna Interface and interconnection
oprema equipment
SIST ES 202 999 V1.1.1:2012 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ES 202 999 V1.1.1:2012

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SIST ES 202 999 V1.1.1:2012

ETSI ES 202 999 V1.1.1 (2010-11)
ETSI Standard


SAFETY;
Remote Power Feeding Installations;
Safety requirements for the erection and operation
of information technology installations
with remote power feeding

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SIST ES 202 999 V1.1.1:2012
 2 ETSI ES 202 999 V1.1.1 (2010-11)



Reference
DES/SAFETY-00007
Keywords
control, interface, management, power, remote,
safety, system
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SIST ES 202 999 V1.1.1:2012
 3 ETSI ES 202 999 V1.1.1 (2010-11)
Contents
Intellectual Property Rights . 4
Foreword . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Definitions and abbreviations . 6
3.1 Definitions . 6
3.2 Abbreviations . 7
4 Limits . 7
4.1 Permitted limit values in maintenance range . 7
4.2 Equipment with which limit values are exceeded according to clause 4.1 . 7
5 General requirements . 7
6 Requirements on equipment and lines . 8
7 Requirements on operating instructions . 9
8 Recommendation of operating instructions (informative). 9
History . 11

ETSI

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SIST ES 202 999 V1.1.1:2012
 4 ETSI ES 202 999 V1.1.1 (2010-11)
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 ETSI Standard (ES) has been produced by ETSI Technical Committee Telecommunications Equipment Safety
(Safety).
ETSI

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SIST ES 202 999 V1.1.1:2012
 5 ETSI ES 202 999 V1.1.1 (2010-11)
1 Scope
The present document contains safety requirements for the erection of information technology installations with remote
power feeding at an operating a.c. voltage exceeding 50 V (rms value) or an operating d.c. voltage exceeding 120 V,
conductor to conductor and/or conductor to earth. It applies in addition to EN 60950-1 [3] and EN 60950-21 [4] and
contains terms, requirements and tests.
If special standards are applicable for installations and parts of installations these shall take precedence; for example
EN 60950-1 [3] and EN 60950-21 [4].
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
reference document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are necessary for the application of the present document.
[1] CENELEC EN 60417-1 (1999): "Graphical symbols for use on equipment. Overview and
application".
[2] CENELEC EN 60900 (2004): "Live working. Hand tools for use up to 1 000 V a.c. and
1 500 V d.c".
[3] CENELEC EN 60950-1: "Information technology equipment - Safety - Part 1: General
requirements".
[4] CENELEC EN 60950-21: "Information technology equipment - Safety - Part 21: Remote power
feeding".
[5] ITU-T Directives concerning the protection of telecommunication lines against harmful effects
from electric power and electrified railway lines (volume IV).
[6] ITU-T Recommendation K.10: "Low frequency interference due to unbalance about earth of
telecommunication equipment".
2.2 Informative references
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
Not applicable.
ETSI

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SIST ES 202 999 V1.1.1:2012
 6 ETSI ES 202 999 V1.1.1 (2010-11)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions given in EN 60950-1 [3],
EN 60950-21 [4] and the following apply:
load power-fed point: load power-fed point extracts electric power from the remote power feeding circuits via its
remote power feeding equipment
remote power feeding: supply of electric power in the form of direct or alternating current to information technology
installations through cables of the associated telecommunication line
remote power feeding cables: cables of a telecommunication line which are used for remote power feeding and may at
the same time be telecommunication cables
NOTE: They are components of the information technology installation.
remote power feeding circuit: circuit which is established by interconnecting remote power feeding devices and cables
to form a functional entity
NOTE: See also RFT circuit (remote feeding telecommunication circuit), RFT-C circuits and RFT-V circuits
according to EN 60950-21 [4].
remote power feeding devices: devices used for remote power feeding, e.g. to supply or extract electric power
remote power feeding equipment: equipment from which the electric power necessary for the remote power feeding
of information technology installations is extracted
NOTE 1: It is a component of the information technology installation.
NOTE 2: For information technology equipment see EN 60950-1 [3].
remote power feeding point: remote power feeding point supplies remote power feeding circuits with electrical current
via its remote power feeding equipment
remote power feeding section: part of remote power feeding circuits located between a remote power feeding point
and the immediately following power-fed point, or between two adjacent power-fed points
RFT-C circuit: RFT circuit which is so designed and protected that under normal operating conditions and single fault
conditions, the currents in the circuit do not exceed defined values
NOTE: See EN 60950-21 [4].
RFT-V circuit: RFT circuit which is so designed and protected that under normal operating conditions and single fault
conditions, the voltages are limited and the accessible area of contact is limited
NOTE: See EN 60950-21 [4].
type of remote power feeding: electrical operating mode of the remote power feed in a remote power feeding circuit. It
is spe
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