DSH1037

chinatown

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

Question
0 p4 B: X2 R. k0 h* k0 dIn a series of batteries of the same dimensions, chemistry, voltage, from the same manufacturer, but with different capacities, which models shall be selected for testing if the safety compliance of the whole series is to be verified?
2 u2 z$ I' \6 w4 F( E1 ~Example series of Ni-MH batteries :
400mAh; 500mAh; 600mAh; 700mAh; 800mAh; 900mAh; 1000mAh; 1100mAh, 1200mAh; 1300mAh; 1400mAh; 1500mAh; 1600mAh; 1700mAh; 1800mAh; 1900mAh; 2000mAh; 2100mAh; 2200mAh; 2300mAh; 2400mAh and 2500mAh.
Decision
In the example above when total difference exceeds 20%
) L# w& `9 r" G* h" OStarting with the highest capacity, calculate capacity values in 20% increments below that value. Select those models in the series for testing whose capacities are closest to the determined 20% increment values.
0 C( Y. i+ O4 g! H1 G( G2500 mAh, 2000 mAh, 1600 mAh, 1300 (1280) mAh, 1100 (1024) mAh, 900 (820) mAh, 700 (656) mAh, 600 (524) mAh, 500 (420) mAh and 400 (336) mAh.
If the total difference in a series of batteries does not exceed 20%
6 g+ ^! v9 u' B0 I6 eSelect for testing the lowest, the highest and one model closest to the middle of the series.
A change that might lead to failure of any of the tests shall be considered a new type and shall be subjected to the required tests.

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