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ATTACHMENT
National Differences
Page 54 of 58
Report No.:
15039146 001
National Differences
Clause
Requirement
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Test
Result – Remark
Verdict
IECEE CB Bulletin on 2007-08-08
US National Differences
US National Differences
P
SPECIAL NATIONAL CONDITIONS BASED ON FEDERAL REGULATIONS
1.1.1
All equipment is to be designed to allow
installation in accordance with the National
Electrical Code (NEC), ANSI/NFPA 70, and when
applicable, the National Electrical Safety Code,
IEEE C2. Also, unless marked or otherwise
identified, installation is allowed per the Standard
for the Protection of Electronic Computer/Data-
Processing Equipment, ANSI/NFPA 75.
installation in accordance with the National
Electrical Code (NEC), ANSI/NFPA 70, and when
applicable, the National Electrical Safety Code,
IEEE C2. Also, unless marked or otherwise
identified, installation is allowed per the Standard
for the Protection of Electronic Computer/Data-
Processing Equipment, ANSI/NFPA 75.
The equipment was evaluated
according to IEC 60950-1.
according to IEC 60950-1.
The requirements have to be
checked during the national
approval.
checked during the national
approval.
N/A
1.4.14
For Pluggable Equipment Type A, the protection
in the installation is assumed to be 20A.
in the installation is assumed to be 20A.
Class III equipment.
N/A
1.5.5
For lengths exceeding 3.05 m, external
interconnecting flexible cord and cable
assemblies are required to be a suitable cable
type specified in the NEC. For lengths 3.05 m or
less, external interconnecting flexible cord and
cable assemblies that are not types specified in
the NEC are required to have special construction
features and identification markings.
interconnecting flexible cord and cable
assemblies are required to be a suitable cable
type specified in the NEC. For lengths 3.05 m or
less, external interconnecting flexible cord and
cable assemblies that are not types specified in
the NEC are required to have special construction
features and identification markings.
Shall be evaluated during the
national approval for the
external interconnecting flexible
cord and cable assemblies.
national approval for the
external interconnecting flexible
cord and cable assemblies.
N/A
1.7.1
Equipment for use on a.c. mains supply systems
with a neutral and more than one phase
conductor (e.g. 120/240 V, 3-wire) require a
special marking format for electrical ratings.
with a neutral and more than one phase
conductor (e.g. 120/240 V, 3-wire) require a
special marking format for electrical ratings.
Not directly connected to the
mains.
mains.
N/A
2.5
Where a fuse is used to provide Class 2, Limited
Power Source, or TNV current limiting, it shall not
be operator-accessible unless it is not
interchangeable.
Power Source, or TNV current limiting, it shall not
be operator-accessible unless it is not
interchangeable.
No fuses used for these
purpose.
purpose.
N/A
2.7.1
Suitable NEC branch circuit protection rated at
the maximum circuit rating is required for all
standard supply outlets and receptacles (such as
supplied in power distribution units) if the supply
branch circuit protection is not suitable. Power
distribution transformers distributing power at 100
volts or more, and rated 10 kVA or more, require
special transformer overcurrent protection.
the maximum circuit rating is required for all
standard supply outlets and receptacles (such as
supplied in power distribution units) if the supply
branch circuit protection is not suitable. Power
distribution transformers distributing power at 100
volts or more, and rated 10 kVA or more, require
special transformer overcurrent protection.
No standard supply outlets,
receptacles, medium-base or
smaller lampholders provided.
receptacles, medium-base or
smaller lampholders provided.
N/A
3.2
Wiring methods (terminals, leads, etc.) used for
the connection of the equipment to the mains
shall be in accordance with the NEC.
the connection of the equipment to the mains
shall be in accordance with the NEC.
Not directly connected to the
mains.
mains.
N/A
3.2.1
Power supply cords are required to have
attachment plugs rated not less than 125 percent
of the rated current of the equipment.
attachment plugs rated not less than 125 percent
of the rated current of the equipment.
N/A
3.2.1.2
Equipment connected to a centralized d.c. power
system, and having one pole of the DC mains
input terminal connected to the main protective
earthing terminal in the equipment, is required to
comply with special earthing, wiring, marking and
installation instruction requirements.
system, and having one pole of the DC mains
input terminal connected to the main protective
earthing terminal in the equipment, is required to
comply with special earthing, wiring, marking and
installation instruction requirements.
N/A
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