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Bulletin Subject: Publication and adoption of China GB 4943.1:201X (harmonized with IEC 60950-1: 2005)+ M# R+ k/ t6 X6 m# ?4 ? n
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Effective Date of Change: March 16, 2012
2 |5 v1 y1 L. m' h4 ]SUMMARY: The China GB 4943.1:201X (Chinese standard that is equivalent to IEC 60950-1, 2nd Edition with Chinese national differences) will become effective on March 16, 2012 for all products under the scope of IEC 60950-1:2005 that are applied with the CCC mark.
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IMPACT: All CCC certifications will need to be updated by March 16, 2012. It is recommended that all submittals made after December 1, 2011 will be to this new standard.
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Major changes: Following are the major Chinese national differences from IEC 60950-1 2nd Ed found in the China GB 4943.1 standard.
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, y& @' }' i: a, o! F$ c! A1). 1.4.5 - Tolerances on supply voltage: Tolerances are + 10% and - 10% instead of + 6% and - 10% as given in IEC60950-1. The China mains voltage is 220 V. Therefore, the test voltages under consideration are 198 to 242 V.
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. M$ y9 h; [) _This will not have an impact if a product is marked with an input voltage range such as 200-240 V (servers are marked like this). This will have an impact a product is marked with a single input voltage such as 230 V or 115/230 V (desk top units are marked 115/230 V). In this case the heating test of 4.5 of IEC 60950-1 may need to be repeated at 198 V.
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2). 1.7.1 - Marking of input rating: 220 V, 50 Hz for single phase; and 380 V, 50 Hz for 3-phase
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9 f/ p& n0 R3 E i' O( }. R: \; AThis will not have an impact if a product is marked with an input voltage range such as 200-240 V. This will have an impact if a product is marked with a single input voltage such as 230 V or 115/230 V. The 220 V rating needs to be included in the marked rating.
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! X- m5 C$ y% f4 P8 q' e3). 1.7 - Safety instructions: All safety instructions and the associated text in the manual for the required symbols on the equipment must be in 5 Chinese languages. The 5 Chinese languages are Simplified Chinese, Tibetan, Mongolian, Zhuang and Uyghur.- J5 ?7 X) P- m- u; v, Z4 f- o0 j& V
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4). Altitude and clearances: For China, the clearances ( through air electrical spacings ) must be suitable for 5000 m. Dell currently designs equipment for 3048 m ( 10,000 feet ). Therefore, (unless clearances for 5000 m are used) the following symbol and instructions must be provided. All Dell equipment with CCC marking is impacted unless we redesign the equipment for 5000 m.
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NOTE – For example, for 230 V equipment the clearance required for basic insulation is 2 mm. Dell requires this clearance to be 2.28 mm. For China and 5000 m 2.96 mm would be the require clearance distance.! R2 N' l: B+ n# [- X
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' ~0 P# T! p) Q( p! HSymbol for altitude ≤ 2000 m
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Symbol on the product: 8 _' }; z' F2 v: O& m
4 |3 U. t% {2 o' Z* F( ~Chinese text in the instructions:/ O# o' C! M7 w; R% t
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Only safe to use in areas under 2000 m above sea level
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This instruction must be in 5 languages as given in item 3 above.3 [7 g# j. M6 l7 N: [8 |
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5). Equipment for China must be suitable for tropical climate:6 }2 R# S$ {0 z1 @+ A
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According to 2.9.2, humidity conditioning for equipment considered suitable for tropical climate, humidity conditioning for equipment must be conducted at a temperature of 40°C ± 2°C, and humidity of 93% +2% /-3%. The humidity conditioning duration shall be 5 days (120h). The rated ambient temperature for such equipment must be 35° C.
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Dell equipment is tested for 48 h. Therefore, either the test must be done for 120 h or the following symbol shall appear on the equipment and the instructions need to be provided in 5 official Chinese languages.) _0 T _5 Q0 l( y E2 E% }0 k
0 G% p) B; n' J6 m3 KNOTE - If the above testing is not done, then the equipment is considered suitable for use in non-tropical climates.
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Symbol on the product:6 E0 l4 r O" g, |
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Chinese text in the instructions:
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6 \3 _: T# W5 ~8 z2 a3 xOnly safe to use in non-tropical climate areas( P( i6 h- U& y4 s
5 C, u% }" }% [* B e2 u* O" u5 M4 cThese must be in 5 languages as given in item 3 above.
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NOTE – China has not published its version of Amendment 1 to IEC 60950-1, 2nd edition but China will accept CB reports that cover amendment 1 to IEC 60950-1, 2nd edition.
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/ y! V; j' b0 B2 {( L' uExisting certificates:
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All existing certificates must be updated to the GB4943.1 by March 16, 2012 |
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