标题: zt??surge????(???÷)?????????é [打印本页]

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作者: tany    时间: 2005-2-23 12:52     标题: zt??surge????(???÷)?????????é

surge????(???÷)?????????é
2004-10-17    amo       ???÷: 841

surge????(???÷)?????????é
????(???÷)?????????é
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Electromagnetic compatibility----Testing and measurement techniques Surge immunity test
GB/T17626.5-1999
Idt  IEC 61000-4-5:1994

1 ·??§
±?±ê×??????????¨?????????????ù×??????¨?è±?????????×????????????????????????§??
?±??????
?????é?????é??????????????EUT?????¨???¤×÷×??????¤×÷?±,?????????·?ò?×??×÷???ù
?ú?ú???????¨????????????????????·???.
2. ????±ê×?
  GB/T4365-1995    ????????????
  GB/T 16927.1 ¨C1997 ???????é????  ??????·?:??°????é???ó
  IEC 469-1:1987  ???????????è±?  ??????·?:???????????¨??
3. ????
3.1 ????????
??????????????????????????:
A) ?÷?????????????§??,?????????÷×é??????
B)   ???????????????÷???ü???á????????×÷?ò??????±???
C)   ??????×°???????????????·,???§????
D) ?÷??????????,???????è±?×é?????????????·??????????
3.2 ?×??????
?×???ú?ú???????????÷?????í????:
A) ?±???×?÷?????????·,×??????ó???÷?÷????????×è?ò???????·×è?????ú?ú????
B) ???¨??????,?????????ú?ú?????????????÷???????×?÷
C) ???ü?±??????·??????×?????????÷???????è±?×é???????????????????·??
3.3 ??????????
A) ????·??ú?÷???????????????????????????ó
B) ?????????????????è±????????????????·??,????????????????,????????·??ú?÷???????è±?????????????????????×è????
C) ?????????????????è±??????????????????·??,????????·??ú?÷??????????????×è????
4  ?¨??
4.1 ?????? balanced  lines
????±??????¤????????,??????????????×??????§????20dB
4.2 ???????? coupling  network
???????????????·?????í???????·?????·
4.3 ??????????  decoupling  network
????·?????????EUT?????????°?ì??????×÷???é??×°??,?è±??ò?????????·
4.4 ?????±??  duration
???¨?¨???ò???÷?????ò???????±??
4.5  EUT    equipment  under test
?????è±?
4.6 ?¨?°?±??  front time
???????????¨?°?±??T1???????é??????,?¨????30%·?????90%·????????????ù?????±??????T??1.67 ±?
???????÷???¨?°?±??T1???????é??????,?¨????10%·?????90%·????????????ù?????±??????T??1.25 ±?
4.7 ??????immunity
×°???è±??ò?????????????§??????????????????????
4.8 ?????è±?×é electrical  installation
?????????????????????ò?à?????????????÷????????×é?????????è±?
4.9 ??????  interconnection  lines
I/O ??;?¨????;??????;
4.10 ??????±??¤  primary  protection
·????ó??·????????????¨??????????????
4.11 ?????±?? rise time
    ???????±???×???????¨???????????????¨???????ù???ú???±??
4.12 ??????±??¤  secondary  protection
????????????±??¤???¨????????????,?ü??????????????×°??,????????EUT??????????
4.13 ???? surge
?????·?????????÷,?????ò???????????¨,???????????ì???????ó????????
4.14 ???? system
    ?¨?????????¨?????? ?????????¨????±ê??,???à????????·?×é????????
4.15°?·????±??T2  time to half value  T2
??????°?·????±??T2???????é??????,?¨?????é??????O1????????????°?·????±??
?±??????
4.16???? transient
   ?????à??????????±????????í?ò???í???ó,??±????±???????ù??×????±??????
5 ???é????
?????????????é??????·??§.

????         ???·???é????(??10%)KV
1 0.5
2 1.0
3 2.0
4 4.0
*             ???¨

6.???é?è±?
6.1 ×é???¨????·??ú?÷ (1.2/50us~8/20us)
6.1.1 ×é???¨????·??ú?÷?????÷??????
    ???·????????:??????0.5KV~4.0KV·??§????????
    ???·????????????: ??10%
    ???·???????÷:??????0.25KA~2.0KA·??§????????
    ???·???????÷????: ??10%
6.1.2 ????·??ú?÷?????????é
6.2 ·???CCCITT??10/700us???é????·??ú?÷
6.2.1  ????·??ú?÷?????÷??????
     ???·????????:??????0.5KV~4.0KV·??§????????
     ???·????????????: ??10%
     ???·???????÷:??????12.5A~100A·??§????????
???·???????÷????: ??10%
6.2.2 ????·??ú?÷?????????é
6.3 ????/????????
6.3.1 ??????/?±?÷????????????/????????(????????×é???¨????·??ú?÷)
6.3.1.1 ????????????????????
???????????????????????±,???????¨???????????????é????°???-???ò??-??·???????
????/?????????????¨????:
????????C:9uF?ò18uF
????????????L:1.5mH
6.3.1.2 ????????????????????
6.3.2 ????????????????/????????
6.3.2.1 ????????????????????
??·???±???????I/O???·,?±???????????????????¨???????????°?ì?±,??????·?·¨
????????/?????????????¨????:
????????C:0.5uF
????????????L:20mH
6.3.2.2 ??????·?????????
??????·????????????????????¨????????????????
????/?????????????¨????:
??????×èRm2: n*25?·(n>=2)
????·?????:90V
   ????????L:20mH
6.3.3 ????????·?·¨
7. ???é????
7.1 ???é?è±?
?????è±?,?¨?ú?è±?.????.????×°??,????·??ú?÷,????????/±??¤×°??
7.2 EUT???????é??????
???????????????¨,EUT??????/?????????????????????¤????2m
??????????????×è??,???????é????,???é?±±????????????????¨??×è
7.3 ·???±????????¤×÷?????????é??????
7.4 ·???±??????¤×÷??????/?¨???????é??????
???±????????????·????????ê????
7.5 ??±??????é??????
7.6 ???????????????é????
7.7 ???ü???é????
7.8 ???é????
???é????;???é???ò
8.???é???ò
8.1???é??????????
8.1.1???ò????
     -------?·??????: 15??~35??
     -------?à??????: 10%~75%
     -------?ó??????: 86Kpa~106Kpa
8.1.2 ????????
???é????????????????±??¤EUT????????,?????é?á???????°?ì
8.2  ?????é????????????
    ???é???ù?????é·?°?????,·?°????????¨????????:
    ????·??ú?÷?????????????è±?
    ???é????
    ????·??ú?÷
    ??????????
    ????·??ú?÷????????·?
    ???é????:?????¨??????????????????????????????
    ??????:×??ì????·???????
    ????????????????????
    EUT???????¤×÷×???
    ?ò???·?????????????ò
    ???÷?????±???à??
9   ???é?á???????鱨??

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