IEC 62151:2000 pdf download.Safety of equipment electrically connected to a telecommunication network
1 Scope
1.1 Equipment covered by this standard
This International Standard is applicable to equipment designed and intended to be connected
directly to a TELECOMMUNICATION NETWORK , regardless of the source of power.
It is intended for the enhancement of product safety standards so as to cover hazards
associated only with connection of equipment to a TELECOMMUNICATION NETWORK .
This standard covers safety requirements and compliance criteria under three headings:
a) protection of SERVICE PERSONNEL working on the TELECOMMUNICATION NETWORK and other
USERS of the TELECOMMUNICATION NETWORK , from hazardous conditions on the TELECOM –
MUNICATION NETWORK resulting from the connection of the equipment;
b) protection of equipment USERS and equipment SERVICE PERSONNEL from voltages on the
TELECOMMUNICATION NETWORK ;
c) protection of the telecommunication wiring system from overheating.
It is assumed that adequate measures according to ITU-T Recommendation K.11 have been taken
to reduce the likelihood that the overvoltages presented to the equipment exceed 1,5 kV peak. In
installations where overvoltages presented to the equipment may exceed 1 ,5 kV peak,
additional measures such as surge suppression may be necessary.
1.2 Additional requirements
Requirements additional to those specified in this standard may be necessary for:
– equipment intended for operation in special environments, for example, extremes of
temperature; excessive dust, moisture, or vibration; flammable gases; and corrosive or
explosive atmospheres;
– electromedical applications with physical connections to the patient.
1.3 Exclusions
This standard does not apply to:
– protection of equipment USERS and equipment SERVICE PERSONNEL from hazards arising in
the equipment. The USER and equipment SERVICE PERSONNEL are considered to be protected from hazards arising in the equipment if it complies with a relevant safety standard;
– functional reliability of equipment and TELECOMMUNICATION NETWORKS ;
– equipment using a TELECOMMUNICATION NETWORK voltage in excess of the limits for a TNV CIRCUIT
1.4 Basic safety publication
This basic safety publication is primarily intended for use by technical committees in the
preparation of standards in accordance with the principles laid down in IEC Guide 1 04 and
ISO/IEC Guide 51 . It is not intended for use by manufacturers or certification bodies.
One of the responsibilities of a technical committee is, wherever applicable, to make use of
basic safety publications in the preparation of its publications. The requirements, test methods
or test conditions of this basic safety publication will not apply unless specifically referred to or
included in the relevant publications.
Where the requirements of this standard differ from the requirements of the relevant safety
standard, the requirements of the relevant safety standard take precedence.
Where this publication specifies the use of BASIC INSULATION , and other grades of insulation, or
PROTECTIVE EARTHING , the detailed requirements of the relevant product safety standard apply.
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this International Standard. For dated references, subsequent
amendments to, or revisions of, any of these publications do not apply. However, parties to
agreements based on this International Standard are encouraged to investigate the possibility
of applying the most recent editions of the normative documents indicated below. For undated
references, the latest edition of the normative document referred to applies. Members of IEC
and ISO maintain registers of currently valid International Standards.
IEC 60050-1 95:1 998, International Electrotechnical Vocabulary (IEV) – Part 195: Earthing and
protection against electric shock
IEC 60309 (all parts), Plugs, socket-outlets and couplers for industrial purposes
IEC 60990:1 999, Methods of measurement of touch current and protective conductor current
IEC 61 032:1 997, Protection of persons and equipment by enclosures – Probes for verification
IEC Guide 1 04:1 997, The preparation of safety publications and the use of basic safety publications and group safety publications
ISO/IEC Guide 51 :1 990, Guidelines for the inclusion of safety aspects in standards
IEC 62151:2000 pdf download
