Test Methods per ITU-T (CCITT) K.12, IEEE C62.31, RUS PE-80, Telcordia GR 1361
Model No.
2027-20
200 V
Characteristic
DC Sparkover ±15 %
(±20 % for Models 2027-07 & 2027-09) @ 100 V/s
Impulse Sparkover
100 V/µs
1000 V/µs
Characteristic
DC Sparkover ±15 % @ 100 V/s
Impulse Sparkover
100 V/µs
1000 V/µs
2027-07
75 V
2027-09
90 V
2027-15
150 V
2027-23
230 V
2027-25
250 V
300 V
500 V
300 V
500 V
350 V
575 V
400 V
600 V
450 V
675 V
475 V
700 V
2027-30
300 V
550 V
800 V
2027-35
350 V
600 V
875 V
Model No.
2027-40
2027-42
400 V
420 V
650 V
925 V
675 V
950 V
2027-47
470 V
725 V
1000 V
2027-60
600 V
850 V
1100 V
Insulation Resistance .........................100 V (50 V for Models 2027-07 and 2027–09) ...................... > 10
10
Ω
Glow Voltage ......................................10 mA ..................................................................................... ~ 70 V
Arc Voltage .........................................> 1A ........................................................................................ ~ 10 V
Glow-Arc Transition Current ............................................................................................................... < 0.5 A
10 Arms, 1 s ........................................................................... > 10 operations
Operating Temperature....................................................................................................................... -55 to +85 °C
由于CAN网络采用多种协议,每个控制模块的端口在正常的情况下都有标准电压,因此电压测量法可用于判断线路是否有对地或电源短路、相线间短路等问题。 为了确定CAN H 或CAN L 导线是否损坏或信号是否正常,可以测量其对地电压(平均电压)。测量点通常在OBD诊断接口处,如下图所示。 诊断接口的6号针脚连接CAN H 导线,14号针脚连接CAN L 导线。如果诊断接口上连接有两组CAN总线,...[详细]