Read JBL ON STAGEII (serv.man12) EMC - CB Certificate online
IEC 60950 3rd. Ed, 1999
- Page 1 of 1 -
Order No. 46974
APPENDIX: CHINA DEVIATIONS
Test results according to CB BULLETIN No. 107A, May 2004
Item Requirement
-
Test
Result - Remark
Ver-
dict
1 Supply
tolerance
Item 1.4.5 of IEC60950 stipulates the tolerance
of rated voltage is +6% and –10%, while
GB4943-2001 makes a specification of
tolerance of +10% and –10%.
of rated voltage is +6% and –10%, while
GB4943-2001 makes a specification of
tolerance of +10% and –10%.
Class III equipment.
N/A
2
Power rating marking
Item 1.7.1 of IEC60950 does not specify
concrete figures of markings for supply voltage
and frequency, instead, descriptions are given
by examples. But the examples do not include
China’s mains voltage. GB4943-2001
stipulates that:
A single rated voltage shall be expressed as
220V.
When a rated voltage range is given, the range
shall cover 220V.
When a variety of rated voltages or rated
voltage ranges are given, one of them shall be
220V, and shall be set as 220V when
dispatched from the factory.
concrete figures of markings for supply voltage
and frequency, instead, descriptions are given
by examples. But the examples do not include
China’s mains voltage. GB4943-2001
stipulates that:
A single rated voltage shall be expressed as
220V.
When a rated voltage range is given, the range
shall cover 220V.
When a variety of rated voltages or rated
voltage ranges are given, one of them shall be
220V, and shall be set as 220V when
dispatched from the factory.
Rated frequency or rated frequency range
shall be 50Hz or include 50Hz ·If a unit is not
provided with a means for direct connection to
the AC mains supply, it need not be marked
with any electrical rating
shall be 50Hz or include 50Hz ·If a unit is not
provided with a means for direct connection to
the AC mains supply, it need not be marked
with any electrical rating
Class III equipment.
N/A
3
Plate and warning marking in Chinese
Item 1.7.12 of GB4943-2001 stipulates:
instructions and equipment markings related to
safety shall be in standardized Chinese.
instructions and equipment markings related to
safety shall be in standardized Chinese.
Must be considered before
marketing in China.
marketing in China.
—
4
Power supply plug
According to China’s particular standards for
power supply plug, it is added in article 3.2.1 of
GB4943-2001 that plug connecting equipment
with AC mains supply shall be in accordance
with requirements of GB1002.
power supply plug, it is added in article 3.2.1 of
GB4943-2001 that plug connecting equipment
with AC mains supply shall be in accordance
with requirements of GB1002.
Class III equipment.
N/A
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