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Bulletin Subject: Publication and adoption of China GB 4943.1:201X (harmonized with IEC 60950-1: 2005)1 B0 [. D* n5 J6 Q7 I
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Effective Date of Change: March 16, 2012! F3 H$ P( W, u5 @
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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8 I0 S+ G- Z& S+ M/ OIMPACT: 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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: Q. }. \6 d2 r# T1). 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.1 A! f: e9 `: ]9 l7 j
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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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5 h. l, [$ f6 W% l2 U, WThis 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.7 |/ a1 B0 E% ~( }
+ C: V" l+ Q. w- D* H0 r6 X- p3). 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.+ [/ q1 ~/ s6 C* u* |
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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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& R2 z3 o% Q- I1 O* W- c) NNOTE – 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.0 d* f% N4 C1 |0 B3 E7 [7 q2 e
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4 p: w- j- U2 C- H8 xSymbol for altitude ≤ 2000 m: m; u( v6 h$ [ e( y, U
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Chinese text in the instructions:) R: ]' d6 T8 ?: P; n+ j
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Only safe to use in areas under 2000 m above sea level* X/ ?- G. _$ G* s9 [9 e, D2 B
! \4 P8 O* P' CThis instruction must be in 5 languages as given in item 3 above., e4 {+ ?) d# j1 G
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5). Equipment for China must be suitable for tropical climate:
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9 _) Y# m& Z, o O ?* _( ^% x5 @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.! ?, X3 }) w. Z1 e
5 l' @+ o# [8 ?4 H6 S; p- f% s7 {5 D8 [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.
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NOTE - If the above testing is not done, then the equipment is considered suitable for use in non-tropical climates.2 M& J$ n6 p! C6 [7 F- b8 K
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Symbol on the product:8 s- G# D, l# C: w) C6 @
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Chinese text in the instructions:
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Only safe to use in non-tropical climate areas3 r* e2 J3 f% ]
, h( j' d9 e! V9 u8 {1 p# U. F3 k3 YThese must be in 5 languages as given in item 3 above.0 A) ?3 {1 T) v; T0 ?/ r( C! h7 N
& ]* a# ^. K! Z0 f5 b; E8 z% i' 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.0 z5 q5 I$ s( }3 F' ~8 u
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Existing certificates:
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- {& }# s! X2 M+ b }4 ~" {All existing certificates must be updated to the GB4943.1 by March 16, 2012 |
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