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Report No.:
11008507 001
National Differences
Clause
Requirement − Test
Result – Remark
Verdict
US National Differences according to CB Bulletin No. 110A, June 2006
(including interlock switches), thermal cut-offs,
thermostats, multi-layer transformer winding wire,
tubing, wire connectors, and wire and cables.
thermostats, multi-layer transformer winding wire,
tubing, wire connectors, and wire and cables.
2.3.1
For TNV-2 and TNV-3 circuits with other than
ringing signals and with voltages exceeding
42.4 Vpeak or 60 Vd.c., the maximum acceptable
current through a 2000 ohm resistor (or greater)
connected across the voltage source with other
loads disconnected is 7.1 mA peak or 30 mA d.c.
under normal operating conditions.
ringing signals and with voltages exceeding
42.4 Vpeak or 60 Vd.c., the maximum acceptable
current through a 2000 ohm resistor (or greater)
connected across the voltage source with other
loads disconnected is 7.1 mA peak or 30 mA d.c.
under normal operating conditions.
No TNV.
N/A
2.3.2
In the event of a single fault, the limits of 2.2.3
apply to SELV Circuits and accessible conductive
parts.
apply to SELV Circuits and accessible conductive
parts.
No TNV.
N/A
2.6.3.3
When subject to impedance testing, protective
earthing and bonding are required to be subjected
to the additional test conditions specified.
earthing and bonding are required to be subjected
to the additional test conditions specified.
No direct mains connection.
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, writing, 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, writing, marking and
installation instruction requirements.
No direct mains connection.
N/A
4.2.8.1
Enclosures around CRTs with a face diameter of
160mm or more are required to reduce the risk of
injury due to the implosion of the CRT.
160mm or more are required to reduce the risk of
injury due to the implosion of the CRT.
No CRT.
N/A
4.3.2
Equipment with handles is required to comply with
special loading tests.
special loading tests.
No handles.
N/A
5.1.8.3
Equipment intended to receive telecommunication
ringing signals is required to comply with a special
touch current measurement tests.
ringing signals is required to comply with a special
touch current measurement tests.
N/A
6.2.1
Enamel coating on winding wire not considered
electrical separation unless subjected to special
investigation.
electrical separation unless subjected to special
investigation.
No used.
N/A
6.4
Equipment intended for connection to
telecommunication network outside plant cable is
required to be protected against overvoltage from
power line crosses in accordance with 6.4 and
Annex NAC.
telecommunication network outside plant cable is
required to be protected against overvoltage from
power line crosses in accordance with 6.4 and
Annex NAC.
N/A
6.5
Equipment connected to a telecommunications
network and supplied with an earphone intended
to be held against, or in the ear is required to
comply with special acoustic pressure tests.
network and supplied with an earphone intended
to be held against, or in the ear is required to
comply with special acoustic pressure tests.
N/A
M.2
Continuous ringing signals up to 16 mA only are
permitted if the equipment is subjected to special
installation and performance restrictions.
permitted if the equipment is subjected to special
installation and performance restrictions.
N/A
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