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Bulletin Subject: Publication and adoption of China GB 4943.1:201X (harmonized with IEC 60950-1: 2005)% E; U* m( t8 I# E5 K
- @+ n& P! s9 n7 [% s J; w4 LEffective Date of Change: March 16, 2012
' h1 u4 f% q5 ~0 JSUMMARY: 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.* q/ L) F, C6 E) F
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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.* W) o6 B2 L, J+ E4 O5 u6 L
7 g M0 y, l6 `! S' p7 z1). 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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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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This 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.+ M- E1 j# |7 H9 Q* R
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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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% d8 A, r2 L* c! \; WNOTE – 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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5 ? h! x* e) ?Symbol for altitude ≤ 2000 m
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' H9 A8 X+ v4 D; \2 s4 m+ sSymbol on the product: ' M0 s6 ?* |9 z' _! q
, y2 @& W( G$ y/ F3 L8 r; s; X; wChinese text in the instructions:; W( w# C; P! r' g4 q3 T$ L- I
8 N' i; _4 H# {% WOnly safe to use in areas under 2000 m above sea level9 ?7 |$ y; C5 I5 w" X8 Y! y
; B1 F: Z3 Z/ G3 U, nThis instruction must be in 5 languages as given in item 3 above.9 w% C# f( c* |; G H
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5). Equipment for China must be suitable for tropical climate:* z7 s2 i) H' j9 T% m- ]- M
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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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( N! B0 t1 w$ ]2 g: ]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.+ p! S5 }5 a* [+ t& c7 U7 U6 `9 z
8 \; z, n% e! RNOTE - If the above testing is not done, then the equipment is considered suitable for use in non-tropical climates.' n' [' R, j. g
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Symbol on the product:
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Chinese text in the instructions:# j0 Y) V6 x8 _5 K( f. x0 k5 H5 e$ z2 w
R$ w) G. B2 F1 y6 sOnly safe to use in non-tropical climate areas
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T, |8 e; S! @, r: ?These must be in 5 languages as given in item 3 above.4 o+ ]$ W7 ~$ ]5 P" M3 A( u# n
' P7 X3 {) }* nNOTE – 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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* e; _! w' K0 b7 UExisting certificates:
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All existing certificates must be updated to the GB4943.1 by March 16, 2012 |
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