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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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# v) g+ s4 X! t8 `- G, G( D+ G: UEffective Date of Change: March 16, 20124 e$ b. @9 k, g( e2 p) T
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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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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) Y) t Z/ X' N, O- t. hMajor changes: Following are the major Chinese national differences from IEC 60950-1 2nd Ed found in the China GB 4943.1 standard.$ R! ~. [ M# k/ h. @6 M. J
/ P$ \. e- M4 @8 w( {, J1). 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.! Y+ Q3 U! E4 u
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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.8 [( U+ q) }4 E* ^! F+ Y$ j" S5 ^
7 `) N$ U* Z+ b) R" A, O2 t) {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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0 K7 m! S9 A1 i1 Z. l: I0 rThis 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 d. Z* N- R' D, K3). 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.$ ]/ |- n; O# A: ?8 Z- s9 |
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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.. h' Q! ]2 h& J7 N! j$ C# Y- W- v
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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.4 M0 F( r- j" K4 T5 e/ W
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+ s: b8 R) P% }( j5 DSymbol for altitude ≤ 2000 m
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* r' i1 |) p: C& z9 Z! c2 T pSymbol on the product: 2 {& h6 V/ s8 |
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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
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This instruction must be in 5 languages as given in item 3 above.' q0 f& v" @# a
: _& z1 u2 d% Q5). Equipment for China must be suitable for tropical climate:
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& y- g" B( c$ kAccording 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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, T5 q% F" P9 hDell 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.) ^7 Q! c7 m; f! I) \
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NOTE - If the above testing is not done, then the equipment is considered suitable for use in non-tropical climates.
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+ |, l! E" X" B2 {- P! HSymbol on the product:" w; p# N# p$ c' ]* V" X' B8 Y( }- ^
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Chinese text in the instructions:
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Only safe to use in non-tropical climate areas2 c, L2 U7 q( ?& `. z
! e9 Q* @/ k* M5 m) U& _8 y3 aThese must be in 5 languages as given in item 3 above.9 x {" t$ ~- D( T9 D! J ]
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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.9 C4 d! Y H. ]
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Existing certificates:: q# m. j2 N' ?0 A6 B4 A {8 j1 ^
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All existing certificates must be updated to the GB4943.1 by March 16, 2012 |
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