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UL 60950 Document Information:
Title
UL Standard for Safety Safety on Information Technology Equipment
Underwriters Laboratories Inc.
Publication Date:
Dec 11, 2000
Scope:
Equipment covered by this standard
This standard is applicable to mains-powered or battery-powered
information technology equipment,
including electrical business equipment and associated equipment, with
a RATED VOLTAGE not
exceeding 600 V and designed to be installed in accordance with the
Canadian Electrical Code, Part
I, CSA C22.1: CSA C22.2 No. 0: and the National Electrical Code. NFPA
70.
The standard is also applicable to equipment, unless otherwise
identified by a marking or
instructions, designed to be installed in accordance with Article 645
of the National Electrical
Code, NFPA 70, and the Standard for the Protection of Electronic
Computer Data-Processing
Equipment, NFPA 75.
See annex NAE for examples of and references to regulatory
requirements that may apply to this
equipment.
This standard is also applicable to such information technology
equipment designed and intended to
be connected directly to a TELECOMMUNICATION NETWORK, regardless of
the source of power.
It is also applicable to such information technology equipment
designed to use the AC MAINS SUPPLY
as a telecommunication transmission medium (see note 4 of clause 6).
This standard specifies requirements intended to reduce risks of fire,
electric shock or injury for
the OPERATOR and layman who may come into contact with the equipment
and, where specifically
stated, for SERVICE PERSONNEL.
This standard is intended to reduce such risks with respect to
installed equipment, whether it
consists of a system of interconnected units or independent units,
subject to installing, operating
and maintaining the equipment in the manner prescribed by the
manufacturer.
Examples of equipment which is in the scope of this standard are:
This list is not intended to be comprehensive, and equipment that is
not listed is not necessarily
excluded from the scope.
Equipment complying with the relevant requirements in this standard is
considered suitable for use
with process control equipment, automatic test equipment and similar
systems requiring information
processing facilities. However, this standard does not include
requirements for performance or
functional characteristics of equipment.
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;
- equipment intended to be used in vehicles, on board ships or
aircraft, in tropical countries, or
at altitudes greater than 2 000 m;
- equipment intended for use where ingress of water is possible; for
guidance on such requirements
and on relevant testing, see annex T.
NOTE - Attention is drawn to the fact that authorities of some
countries impose additional
requirements.
Exclusions
This standard does not apply to:
- support equipment, such as air conditioning, fire detection or fire
extinguishing systems;
- power supply systems, such as motor-generator sets, battery backup
systems and transformers,
which are not an integral part of the equipment;
- building installation wiring;
- devices requiring no electrical power.
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