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Bulletin Subject: Publication and adoption of China GB 4943.1:201X (harmonized with IEC 60950-1: 2005): F! {; ~8 h: X2 x0 u4 a
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Effective Date of Change: March 16, 2012
7 A* s. h- S. l, tSUMMARY: 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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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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2 {/ y8 A( T6 R& E- ?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.7 T5 x! k/ @7 O1 [& Z- X& f
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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-phase3 }& D7 G- n! F4 V3 p
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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.% H$ m$ |" D5 m4 m
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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.3 p+ g5 t: F% C- W" p0 d+ e
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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.3 h1 U$ d2 g+ X1 T3 ^/ E
5 m- c/ L; }% {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.2 L5 U+ q5 u+ R. G) J
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Symbol for altitude ≤ 2000 m8 C* C1 J% M/ D. e
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6 ~7 p5 E$ J& r- ~) HSymbol on the product:
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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' Z- `2 ~- Q# u+ ]- _
, f: s0 g9 m' T1 p0 iThis instruction must be in 5 languages as given in item 3 above.( E7 T. p1 l& z4 e! C6 H) ?- g
J1 D) e3 [, W2 S( W, W/ r5). Equipment for China must be suitable for tropical climate:: R. c4 Y0 f2 `9 C
4 I/ E2 X0 e7 o1 v* ?5 B/ hAccording 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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% s- U. B: x% q/ }) P2 b# q8 k, LDell 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.* s+ Z, N# U: J4 a- E
% G2 K: G: D) V& q: o2 b* FNOTE - If the above testing is not done, then the equipment is considered suitable for use in non-tropical climates.! v( T# R) ?; T! {; @2 T
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Symbol on the product:# ~/ Z1 Y8 s; t- P" x9 x; M. i1 @+ y* Y7 B
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Chinese text in the instructions:* |) I: Y# N( A' {. T
% _) |* \9 c9 J* e; B- Q7 vOnly safe to use in non-tropical climate areas
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V( H3 D }- XThese must be in 5 languages as given in item 3 above.1 Q0 [# D! v/ {
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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.: [) ], ]. u/ k
: r2 o% G2 X4 c8 H+ H* |Existing certificates:
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, Q; t i* Z1 z$ R6 F+ tAll existing certificates must be updated to the GB4943.1 by March 16, 2012 |
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