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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
: ?0 G, m& s6 H# ~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 N8 w X) k2 p, U
, H5 e3 H0 [0 {( j; ^) V0 r% XIMPACT: 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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3 i9 H2 w2 N$ I9 S5 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.+ K- X* R( s& o/ \! |# X0 M) ^
6 W }$ s$ o. u( {" O4 |4 iThis 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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( }7 N v$ Q: `* ~+ `4 z+ q2 [; h2). 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.4 e- ]" N- p. J4 c
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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.4 T5 G& f+ c7 a9 @0 W# y( L9 d
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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.2 D; }' ?# ], @( w9 t
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Symbol for altitude ≤ 2000 m# o; G* E6 ^+ N
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! o) n# ^1 r% |Symbol on the product:
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Chinese text in the instructions:8 w: G5 O4 G3 Z% k' P
- j3 A) v& i9 t2 ~; Z+ h6 aOnly safe to use in areas under 2000 m above sea level3 h* z* U% t7 i5 J2 J
0 T9 k+ ^! `( ]! V* Z; \This instruction must be in 5 languages as given in item 3 above.6 X$ c$ h; ]4 V2 q# n6 T
|. @; I% Y+ H0 W, P# U5). Equipment for China must be suitable for tropical climate: O( p1 G( [: Q$ N9 J9 b( s
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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.) R; ^# W% R. y9 w
( x5 v# S9 P \& K$ oDell 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.! A( q! C6 `' S
6 p6 H e8 f: b& ]0 [NOTE - If the above testing is not done, then the equipment is considered suitable for use in non-tropical climates.
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Symbol on the product:
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8 z. d" ]# {9 [4 _ h' {. oChinese text in the instructions:
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Only safe to use in non-tropical climate areas
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4 j' w+ y! L. w6 V6 X' V8 `0 y5 |: aThese must be in 5 languages as given in item 3 above.9 l% Z" @# C" |1 U
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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.
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Existing certificates:$ g, o9 Q3 \, z6 h; C: C
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All existing certificates must be updated to the GB4943.1 by March 16, 2012 |
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