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Bulletin Subject: Publication and adoption of China GB 4943.1:201X (harmonized with IEC 60950-1: 2005)
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Effective Date of Change: March 16, 20123 Q$ w% j% H: ^5 p
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.7 i" d. E& I( f( E- U9 ?
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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.$ _6 R" H8 \' R
! b' K' ^+ o8 Z- z* uMajor 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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1). 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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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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& ]$ r2 Y% {( t7 T. ]; n/ w2 a2). 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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$ y0 y: M |5 N, ^$ X z0 ?* tThis 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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3). 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./ u% h1 ~& D' D$ N
! q7 a* w# O6 ]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. I+ r5 z3 ^% U1 b8 T
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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.
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Symbol for altitude ≤ 2000 m
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Symbol on the product: 2 \# ]" I# U* h! q0 S2 {! l, v
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Chinese text in the instructions:
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Only safe to use in areas under 2000 m above sea level
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! B$ A# q# ^% ?7 I* ?This instruction must be in 5 languages as given in item 3 above.7 _ C' G4 k; c9 f& ?4 k0 ]2 d- S
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5). Equipment for China must be suitable for tropical climate:3 Y, T! e- O0 Z+ X2 H- e" O9 M0 N
! H2 v1 K3 f' t" O! Q1 R5 {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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( y) @) d7 ~$ m( n# rDell 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.
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1 e. _; v; C! ?$ e6 u; _5 [. e* hNOTE - If the above testing is not done, then the equipment is considered suitable for use in non-tropical climates.
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1 _' g% W8 ~% ]9 aSymbol on the product:
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Chinese text in the instructions:! E( ]7 \( b) w4 S
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Only safe to use in non-tropical climate areas, R" V3 `% U- ]: Q: h, [ |4 F! L
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These must be in 5 languages as given in item 3 above.
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' H1 {, c/ b* ~/ o& m" X6 G7 zNOTE – 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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Existing certificates:. D% U8 X4 d5 p4 F; S6 `& q% p
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All existing certificates must be updated to the GB4943.1 by March 16, 2012 |
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