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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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3 E; e. d' C; f3 N; m3 g3 r) LEffective Date of Change: March 16, 2012
0 z/ v( Z# E1 {* n, c lSUMMARY: 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.( r6 C- V1 ^' q0 u4 n3 ]
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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.5 g* f# Q/ i' }- I, 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.) | r' c# G0 c6 y
7 V7 ^8 Z% V4 e9 A/ Z2). 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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8 q% }; q8 ?6 |" b# ~6 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.
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0 Q5 v) y+ j; c) K. w4). 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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4 z) P0 B4 M- H+ }+ k; b. d* qNOTE – 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., W3 ] w Z& ^/ y9 `
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$ u5 J( K+ k5 ?$ cSymbol for altitude ≤ 2000 m* I9 |: ~3 j8 [. e
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/ V& ]$ d* J/ |6 kSymbol on the product: - {9 p9 n0 u' L) v/ s8 C3 I3 S
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Chinese text in the instructions:' n; H. K$ X% ]6 v9 G
4 f' y; I- J9 d4 TOnly 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.
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5). Equipment for China must be suitable for tropical climate:
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# ?: t O/ |0 aAccording 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.- j1 R3 c9 F8 ~ I# _; k% y
& W7 m5 D" r& Y9 F6 a8 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.! c3 {. B1 `3 g6 ] U6 ]3 t% m4 D
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NOTE - If the above testing is not done, then the equipment is considered suitable for use in non-tropical climates.9 C2 A r: `; b, r" ?1 y; _
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Symbol on the product:; k; |& s/ w5 Y/ J
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Chinese text in the instructions:; y& e3 g/ L, `4 \
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Only safe to use in non-tropical climate areas8 p* o; N3 \+ U9 @* V
8 a3 B/ o" {7 [& H v% V! rThese must be in 5 languages as given in item 3 above.3 v3 x f! ?9 Y6 ?0 G
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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.& [5 o# W9 U& g: B, X5 `
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Existing certificates:
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: P' D3 J+ s S- i& W+ P3 s4 UAll existing certificates must be updated to the GB4943.1 by March 16, 2012 |
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