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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, 2012$ D+ p" } M9 d8 P5 \ l0 a( R
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./ I; k2 W8 {. v0 b9 g" d5 q' {5 _' z
# x) ~8 H& m& LIMPACT: 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.7 d! ~+ n" a# `, t8 v$ e
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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.7 D+ Z/ E6 b: c8 f0 j/ {
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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.; n2 d) r( D' I9 v! n- }
[( t8 A* O8 G9 WThis 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.2 f) y& o# j6 A; P/ U4 d1 f
* e9 u! b O7 F+ z1 A9 j2). 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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6 K, W3 A- }7 w" n7 n% b5 p7 NThis 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.
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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.% A6 X. H- Z& z
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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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; t; R9 b: I% G! [Symbol for altitude ≤ 2000 m
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% T( U& Z4 P0 Z' ] B' YSymbol on the product: + k' v+ z, B* s5 t9 Y
0 t }9 ^$ c: {8 |- S! f( H) gChinese text in the instructions:
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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.8 d9 h1 Z6 v9 S% G$ P& m
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5). Equipment for China must be suitable for tropical climate:
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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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* O, h y# C; pDell 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.! e# [$ g" ?7 l: b6 k) e
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NOTE - If the above testing is not done, then the equipment is considered suitable for use in non-tropical climates.! I1 \0 T' H# G0 z8 D, G+ ]
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Symbol on the product:( _, |, e' a$ [1 x- A
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Chinese text in the instructions:( w9 G+ ]5 Y* D, A) j' p
1 V! i1 v1 f1 x/ sOnly safe to use in non-tropical climate areas
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These must be in 5 languages as given in item 3 above.# d$ ? v" g! H- M' J8 m4 @2 n: N
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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.$ J7 C3 \5 x5 D+ y4 M y9 y( J3 e# B
4 ^ b+ s* s r; `" HExisting certificates:3 S) k g+ y+ X& Z) j2 L! H# ~0 M
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All existing certificates must be updated to the GB4943.1 by March 16, 2012 |
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