SoundSticks II - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 96

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Page 89 of 91 
ST-05368 
 
IEC 60950-1 / EN 60950-1 
Clause 
Requirement – Test  
Result – Remark  
Verdict 
 
TRF No.: IECEN60950_1A 
 
 
 
1.5.1 
Some components and materials associated with 
the risk of fire, electric shock, or personal injury 
are required to have component or material 
ratings in accordance with the applicable national 
(U.S. and Canadian) component or material 
requirements. 
These components include: 
attachment plugs, battery packs (rechargeable 
type, used with transportable equipment), 
cathode ray tubes, circuit breakers, 
communication circuit accessories, connectors 
(used for current interruption of non-LPS circuis),  
cord sets and power supply cords, direct plug-in 
equipment, enclosures (outdoor), flexible cords 
and cables, fuses (branch circuit), fuseholders, 
ground-fault current interrupters, industrial control 
equipment, insulating tape, interconnecting 
cables, lampholders, limit controls, printed wiring, 
protectors for communications circuits, 
receptacles, solid state controls, supplementary 
protectors, surge suppressors, switches 
(including interlock switches), thermal cutoffs, 
thermostats, transformer winding wire, tubing, 
wire connectors, and wire and cables. 
 P 
2.3.1 
For TNV-2 and TNV-3 circuits with other than 
ringing signals and with voltages exceeding 42.4 
Vp 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 circuit within the EUT 
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. 
 N/A 
2.6.3.4 
When subject to impedance testing, protective 
earthing and bonding are required to be 
subjected to the additional test conditions 
specified.  
Class II 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 mains 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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