ON STAGEII (serv.man18) - JBL Audio EMC - CB Certificate (repair manual). Page 73

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IEC 60950-1 1st. Ed, 2001 
- Page 1 of 5 - 
 
 
 
Order No.  46974 
 
 
APPENDIX: USA DEVIATIONS 
Test results according to CB BULLETIN No. 107A, May 2004. 
 
 
Clause 
Requirement - Test 
Result - Remark 
Ver-
dict 
 
The United States of America and Canada have adopted a single, bi-
national standard, CAN/CSA C22.2 No. 60950-1/UL60950-1, First Edition, 
which is based on IEC 60950-1, First Edition. This bi-national standard 
should be consulted for further details on the national conditions and 
differences summarized below. 
 
 
The following is a summary of the key national differences based on 
national regulatory requirements, such as the National Electrical Code 
(NEC) ANSI/ NFPA 70-2002, which are referenced in legislation and 
which form the basis for the rules and practices followed in the 
electrical and building installations. 
 
 
1.1.1 
All equipment is to be designed to allow 
installations in accordance with the National 
Electrical Code (NEC), ANSI/NFPA 70, the 
Canadian Electrical Code (CEC), Part 1, 
CAN/CSA C22.1, 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.  
Class III equipment. 
N/A 
1.4.14 
For pluggable Equipment Type A, the 
protection in the insulation is assume to be 20 
A. 
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 (e.g. DP, CL2) specified in the NEC.  
For length 3.05m or less, external 
interconnecting flexible cord and cable 
assemblies which are not types specified in the 
NEC are required to have special construction 
features and identification markings. 
Interconnecting cables contain 
SELV only. 
1.7.1 
Equipment for use on 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.  
A voltage rating that exceeds an attachment 
plug cap rating is only permitted if it does not 
exceed the extreme operating conditions in 
Table 2 of CAN/CSA C22.2 No. 235, and if it is 
part of a range that extends into the Table 2 
“Normal Operating Conditions”. Likewise, a 
voltage rating shall not be lower than the 
specified “Normal Operating Conditions”, 
unless it is part of a range that extends into the 
“Normal Operating Conditions”.  
Class III equipment. 
N/A 
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