CREATURE II (serv.man7) - JBL Audio EMC - CB Certificate (repair manual). Page 40

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IEC 60950 3rd. Ed, 1999 
- Page 4 of 5 - 
 
 
 
 
Order No.  23171 
 
 
 
The following key national differences are based on requirements other than 
national regulatory requirements. The bi-national standard (CAN/CSA C22.2 No. 
60950/UL 60950, Third Edition) referenced above should be consulted for 
further details on the national differences summarized below. 
— 
1.5.2  
Components of equipment must be suitable for 
the application, and must comply with the 
requirements of the equipment standard and 
the applicable national (Canadian and/or U.S.) 
component or material standards, as far as 
they may apply.  
The acceptance will be based on the following: 
A) A component certified by a Canadian or 
U.S. NCB to a Canadian or U.S. component 
standard will be checked for correct application 
and use in accordance with its specified rating. 
Where necessary, it will also be subjected to 
the applicable tests of the equipment standard. 
B) A component, which has a CB Test 
Certificate for compliance with a relevant IEC 
component standard, will be checked for 
correct application and use in accordance with 
its specified ratings. Where necessary, it will 
also be subject to the applicable tests of the 
equipment standard, and to the applicable 
tests of the Canadian and/or U.S. component 
or material standard, under the conditions 
occurring in the equipment. 
C) A component which has no approval as in 
A) or B) above or which is used not in 
accordance with its specified ratings, will be 
subject to the applicable tests of the equipment 
standard, and to the applicable tests of the 
Canadian and/or U.S. component or material 
standard, under the conditions occurring in the 
equipment. 
D) Some components may require annual re -
testing, which may be carried out by the 
manufacturer, CSA International or another 
laboratory.  
All critical components are IEC 
certified. See list of critical 
components in main CB report 
(§1.5.01).  
2.3.1  
For TNV-2 and TNV-3 circuits with other than 
ringing signals and with voltages exceeding 
42.4 Vp or 60 Vdc, 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 dc under normal operating 
conditions. 
No TNV circuitry. 
2.6.3.3 
When subject to impedance testing, protective 
earthing and bonding are required to be tested 
to the additional test conditions that originate in 
CAN/CSA C22.2 No. 0.4. 
Class III equipment. 
4.2.8.1 
Enclosures around CRT’s having a diagonal 
dimension of 160 mm or more are required to 
reduce the risk of injury due to the implosion of 
the CRT. 
No CRTs in the equipment. 
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