Read JBL ON STAGE (serv.man3) EMC - CB Certificate online
IEC 60950 3rd. Ed, 1999
- Page 1 of 5 -
Order No. 23171
APPENDIX: US DEVIATIONS
Test results according to CB BULLETIN No. 105A, May 2003.
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/UL60950, Third Edition,
based on IEC 60950, Third Edition
national standard, CAN/CSA C22.2 No. 60950/UL60950, Third Edition,
based on IEC 60950, Third Edition
—
The following is a summary of the key national differences based on
national regulatory requirements, such as the National Electrical Code
(NEC) ANSI/ NFPA 70-1999, which are referenced in legislation and
which form the basis for the rules and practices followed in the
electrical and building installations. The bi-national standard referenced
above should be consulted for further details on the national differences
summarized below.
national regulatory requirements, such as the National Electrical Code
(NEC) ANSI/ NFPA 70-1999, which are referenced in legislation and
which form the basis for the rules and practices followed in the
electrical and building installations. The bi-national standard referenced
above should be consulted for further details on the national differences
summarized below.
—
1.1.1
All equipment is to be designed to allow
installations in accordance with the National
Electrical Code (NEC), ANSI/NFPA 70, and,
unless marked or otherwise identified, the
standard for the Protection of Electronic
Computer/Data-Processing Equipment,
ANSI/NFPA 75.
installations in accordance with the National
Electrical Code (NEC), ANSI/NFPA 70, and,
unless marked or otherwise identified, the
standard for the Protection of Electronic
Computer/Data-Processing Equipment,
ANSI/NFPA 75.
Class III equipment.
N
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 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.
Class III equipment.
N
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”.
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
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.
Limited Power Source (or TNV) current
limiting, it shall not be operator-accessible
unless it is not interchangeable.
No such fuse provided.
N
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