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IEC 60950-1:2001??

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Title: IEC 60950-1:2001??


1
IEC 60950-12001??
IEC60950-1 ??????



2
IEC 60950-12001??
  • ???????
  • 1.??????
  • ??
  • General Requirements
  • ?????
  • ???????

3
IEC 60950-12001??
1. ?????? ?IEC/EN 60950-1????,??????????
???????, ???????????????? ???
4
IEC 60950-12001??
- Electric shock ?????????????????,??????????,???
?????????,???????????????????????,????????????????
???,??????,??40Vpeak?60Vdc???,??????????????,?????
??????????????????????? ??????????????(single
fault)??,?????????????,???????_______________????,
????????????????
??( two levels )
5
IEC 60950-12001??
- Energy hazards ???????????????????,?????????,??
????????????????????????,??????????,??????????
???????????,?______,_____?__________????
??
??
????
6
IEC 60950-12001??
- Fire ????????????????????????????,?????????????
????????,???????????????????????????????? ????????
?? - ??_________?? - ????????????________?? - ???
??_______???????????? - ?????????______ - ????????
?______ - ??_______?_______?????????? - ??????____
__????,???????????
???
??
??
??
??
??
??
??
7
IEC 60950-12001??
- Mechanical hazards ?????????????? - ???????????
?? - ????????? - ????????? - ??????????????????  ?
?????????? - ????????________ - ??___________??
- ??_________ - ???___________?? - ?????????????_
_______?? - ??????????????????????????_______?????
?
???
????
???
???
??
??
8
IEC 60950-12001??
- Heat hazards ???????,?????(??)?????? - ???????
??????? - ??????????????? - ????????   ??????????
- ????????? ______________ ??? - ?????????______
_____?? - ????????????_____________????,??????????
?
??????
????
??????
9
IEC60950-12001??
- Radiation hazards ?????????????????????????????
?? ???????????? ???????????????,??????????????????
??,?????   ?????????? - ??????_______? - ??______
____?? - ??????????????????????,???_______??????
??
????
??
10
IEC 60950-12001??
- Chemical hazards ????????????,?????????,???????
??,?????,?????????????????,??????????   ??????????
- ?????????????????????????? - ?????????????????
?????,???????????
11
????
  • ?????????

12
UL60950 Scope ????
  • ??????????????????????????600V???????,????????????
    ?????
  • ??????????????????????????

13
UL60950 ????
  • ???,???,???,?????,???,????????,???????,??????,????
    ??,????,???,???,?????,???,???,??????,???

14
????
  • ??????,?????????????????????????
  • 1??????????????,??????????????????????????????????
    ????
  • 2????????????????
  • 3?????????????????,?????????200MM??????????
  • 4????????????????,?????????????????????

15
????????????
  • Listed Product???????????????????????????????,???
    ???????,????????????
  • Recognized Product?????????,???????????????,?????
    ?????????????????????????????,???COA???,??????????
    ?????

16
UL60950-1 Product category????
  • LISTED(QQGQ/7,NWGQ/7)??
  • ????????600?????,?????????????????????????????????
    ??????????????????????(NWGQ)?????(QQ)?????????????
    ???ITE??(NWGQ)????
  • Recognized(QQGQ2/8,NWGQ2/8)??
  • ???????????????????????????,???????????,??????????
    ??????????

17
????
  • (????)???????????????
  • (????)???????????????????,???????????????????????
    ?????????????????
  • (????)?????,?????????????,?????????????????,?????
    ??????????????????????
  • ?????????????

18
????
  • ???
  • ???
  • --???????18Kg???????.??
  • --?????????????,??????????????????????
  • ??
  • --??????????????????????????????

19
????
  • ??Stationary equipment which is fastened or
    otherwise secured at a specific location.
  • ??????????????,???????????????????????????????
  • ?????????????????????,???????????????????
  • ???,??????????????????,????????,???????????

20
?????
  • 1?SELV??safety extra-low voltage circuit????????
  • 2?LCC??Limited current circuit
  • ??????
  • 3?ELV??extra-low voltage
  • ????
  • 4?Hazardous voltage
  • ????
  • 5?LPS????Limited power source
  • ????
  • 6?TNV??telecommunication network voltage circuit
  • ????????

21
SELV??safety extra-low voltage circuit
  • A SECONDARY CIRCUIT which is so designed and
    protected that under
  • Normal operating conditions,and
  • -Voltages not exceed 42.4V pk or 60V dc
  • Single fault conditions,
  • 1.For t(0,200ms),V71V pk or 120V dc
  • 2.For t(0.2s, 8),V42.4V pk or 60V dc

22
SELV ??safety extra-low voltage circuit
  • ???????????????(1.4.14)?,SELV?????????????????????
  • Note????(?????????)????????SELV???????,??????????
    ?,?????????????????SELV???????,????????????

23
LCC????
  • ????
  • ?????????????,??????????????????,?????????????????
    ?
  • ??????????????????????2.4??????

24
LCC-Part1
  • The available current(A)shall not exceed the
    limits under both normal operating conditions and
    in the event of a single failure
  • -For frequency not exceeding 1 kHz
  • A pkV pk/2000?lt0.7mA pk
  • A dcV dc/2000?lt2.0mA dc
  • -For frequency above 1kHz
  • A pkV pk/2000?lt0.7mA X freq.(in kHz),
  • But available current(A)shall not exceed
    70mA

25
LCC-Part2
  • Limits of available energy
  • For voltagelt450V peak or dc,
  • -Capacitance0.1µF and was recorded in µF
  • For voltage(450,15,000)V pk or dc,
  • -Stored charge 45 µC and was recorded in
  • µC (µF)V
  • For voltagegt15,000V peak or dc,
  • -Available energy 350 mJ and was recorded
    in J5(10)-7(µF)V2

26
ELV????
  • ELV(extra-low voltage)circuit????
  • ????????,???????????????????????????????42.4V?????
    ?60V?????????????????????????SELV???????,????????
    ??????

27
????
  • ?????????????????TNV????????,???????42.4V???????60
    V??????????????????,??????SELV???????,???????????
    ??

28
LPS(????)
  • 1,???????
  • 2,????????(??????)

29
LPS(????)
30
TNV??????
  • TNV(telecommunication network voltage)circuit
    1.2.8.11TNV-1 circuit whose normal operating
    voltage do not exceed the limits of SELV and on
    which overvoltages are possible.
  • 1.2.8.12TNV-2 circuit whose normal operating
    voltage exceed the limits of SELV and which is
    not subjected to overvoltages.
  • 1.2.8.13TNV-3 circuit whose normal operating
    voltage exceed the limits of SELV and on which
    overvoltages are possible.

31
TNV??????
  • The signal of TNV circuit mainly is from the
    telephone line outside.
  • The cause of the overvoltage mentioned in the
    above page
  • 1,telephone line maybe contact with the high
    voltage electric power line out side
  • 2,maybe from the lightning
  • In this type circuit like TNV-2
  • The telephone we often use belong to the
    TNV-3
  • NoteCable distrebution systemTNV-1
  • A metallically terminated transmission medium
    for transmission of video and/or audio signals
    between separate buildings or between outdoor
    antennas and buildings.

32
????
  • 1?????(F)
  • ?????????????
  • ????????????????????,???????????????????
  • 2?????(B)
  • ??????????????
  • 3?????(S)
  • ????????????????,?????????????????????
  • 4?????(D)
  • ????????????????
  • 5?????(R)
  • ?????????,??????????,?????????????????????
  • ???????????????????????????????????????????????
    ???????????????????

33
????
TYPE of INSULATION or PROTECTION LEVEL of PROTECTION against ELECTRIC SHOCK
FUNCTIONAL BASIC SUPPLEMENTARY DOUBLE REINFORCED PROTECTIVE EARTH 0 1 1 2 2 1
34
???????
  • ??????
  • -FUNCTIONAL INSULATION,and
  • -BASIC INSULATION
  • Note
  • ?????????????0.4mm? ?????????

35
?????
  • ?????????
  • -BSD
  • -BETwo Levels of Protection
  • -RD
  • -BB?D

36
???????
  • Electric protection level???????-UL60950-1
  • ?CLASS I EQUIPMENTEquipment is protected by
  • Uses BASIC INSULATION????
  • Provides a means of connection to the
    PROTECTIVE EARTHING CONDUCTOR???????.
  • CLASS II EQUIPMENTEquipment is protected by
  • Provides DOUBLE INSULATION or REINFORCED
    INSULATION
  • Be no reliance on either protective
    earthing.
  • ? CLASSII EQUIPMENTEquipment protected against
    electric shock by
  • Relies upon supply from SELV CIRCUITS
  • Are not generated HAZARDOUS VOLTAGES.
  • Impact??The touch current values,enclosure,spacin
    gs etc

37
???????
  • ????
  • ???????
  • ???????????
  • ????,?????????????
  • Impact??The minimum CLEARANCE and CREEPAGE
    DISTANCE values.

38
????
  • ??????Ac mains supply
  • ?????????(???????)
  • I?Unearthed(???Ifor isolated from earth)
  • T?Earthed(???Tfor earthed (terra))

39
????
  • ????????????????????????,???????????????????,?????
    ?,????????????,????????.??????????????????????????
    ???,?????????????.

40
??????????
  • Marking label ?? Power
    Supply Cord ???
  • Case ??
    Appliance Inlet ??
  • Internal Wire ??? Fuse
    ???
  • Fusible resistor ???? X CapY Cap
    X??,Y??
  • Varistor ???? Transformer
    ???
  • O ptical isolators ?? Tubing
    ??
  • PWB ??? DC output
    cord ???
  • Switch ??
    Adhensive ?
  • Fuseholder ???? Thermal cut-out
    ????
  • Thermostat ??? Terminal Block
    ???
  • Insulation material(??)????

41
Enclosure(??)
  • ??????????
  • UL50??
  • ???????????????????????????(???????????),?????????
    ????????????(???????????????).
  • ???????????????????.
  • ??????????,????????????,?????????,??????,?????????
    ?.

42
??
  • UL 60950-1??????
  • ?????????????????????????????
  • ????????????????????????????
  • ??????????????????????????TNV??????????????
  • Decorative part ???
  • NOTE
  • ???????????????????? ???????????????????.

43
???????
  • ???????????????????,???,???,???????????????,??
    ??????????.????????????.

44
????
  • ?????????????????,???,??

45
IEC 60950-12001??
Materials and components hazards
?????????????,???????????,?????????????,????????
Scope IEC 60950????????mains-powered or
battery powered ????(???????)??????,???????600V.
46
IEC 60950-12001??

47
IEC 60950-12001??
48
IEC 60950-12001??
49
IEC 60950-12001??
50
IEC 60950-12001??
51
IEC 60950-12001??

52
IEC 60950-12001??
53
IEC 60950-12001??
54
IEC 60950-12001??
55
IEC 60950-12001??
56
IEC 60950-12001??3.1?????

57
IEC 60950-12001??

58
IEC 60950-12001??
  • 4.2 Marking
  • 4.2.1 ?????? ????????????(???),?????????????,??,?
    ?. ??????

59
IEC 60950-12001??
  • 3.2.2
  • 3.2.3
  • 3.2.4

60
IEC 60950-12001??
  • 3.2.5
  • 3.2.6
  • 3.2.7
  • 3.2.83.2.9

61
IEC 60950-12001??
  • 4. ?????
  • 4.1 ??????????????
  • - ___SELV_???????
  • - ___???_____???????
  • - ??2.1.1.1.?????_ TNV ??

62
IEC 60950-12001??
4.2 ??????????????? - ________???????, - ?______
___?????, - ELV?????_____???_____????????,???????2
.1.1.3???? - ?????????_____???_____???????? - ____
____??????????????ELV??????,??_____???_____????
ELV
????
??
??
??
??
???
??
??
63
IEC60950-12001??
4.3 ????(Functional Earthing)????????????????????
??,?????????? a.) ??????????????????,???????????
???? - _______________?? - ____????????(Protec
tive screen)???PE?? b.) ??????????_______?
_______________________ c.) ???????????????IEC
60417 No._______,?_______???,???????????????
terminal block??,???????,??IEC 60417
No._______???????????Note d.)
??????????????________?? e.) ??????________???????
?????,???????_________????
?????
??
PE??
Protective Bonding conductor
5017
5019
5017
???
???
Class II
64
IEC 60950-12001??
4.4 Protective earthing conductors?????,???????
3.2.5 ?3B????????
65
IEC 60950-12001??
4.5 Protective bonding conductors?????,???????
3.2.5 ?3B???????,????? 2.6.3.3.??????????16A?,????
??????2D????????
66
IEC 60950-12001??
4.6 Protective protective bonding conductors
???????? 3.2.5.?3B????,??? 3.3.5.
?3E?????????,??????????
67
IEC 60950-12001??
4.7 ???????????? ????Protective earthing
conductors????______?? Protective bonding
conductor??????,??????______?,?????????,??????____
_??_____?? ?Protective bonding
conductor?????????(Assembly)?ribbon
cables,busbars,printed wiring?,????????,??????????
?????
??
??
??
??
68
IEC 60950-12001??
4.8 ?????? ???????,????____________?
??????????,??_____?______ ????????????
Operator ????parts, ____________ ___________
____________?????????make earlier and break
later. ????,?????????????,??_______ ?????
??????,??????????,??????????????,????????????????J
.1???(???????????____V,?????),???????,??????????
??????
??
??
a plug on a power supply cord
???????? connector
an appliance coupler
????
0.6
69
IEC 60950-12001??
4.8 ?????? (continue) ????????????????2?????
?????.However, it is permitted to use a
single?????Metal part ?? min. 1.6mm for
thread-cutting type or min. 0.9mm for
thread-forming type .
70
IEC 60950-12001??
71
IEC 60950-12001??
4.9 ??????????????2G??2F,??????
72
IEC 60950-12001??
73
IEC60950-12001??
74
IEC 60950-12001??
4.10 ????(clearance)???
????????????,????????? - ?????????????????????????
??,???____mm????????????????????????????????(non-v
ertical top surface) - ??????????????????????????,
???____mm? -??????clearance???????2H(rms)?2J(peak)
?????????,????AC?????????,?230Va.c.,?cl.?4.0mm? -?
?????clearance???????2K? ?????????,????????____
N?,????____ N?,??????,?????????,??????????
10
2
10
30
75
IEC 60950-12001??
4.11 ????(creepage distances)??? -
???????????,??????,??????????,??2L???????????? -
???????????2L????????????? - ????2L?????????,???2H
?2J?2K?????????,??????????????????????? -
????,????????,??????????????,?????????? -
????????????,???????,??????????,?????,?TNV????????
???? - ???TNV???????,???TNV-1???60Vd.c.,?TNV-2?TNV
-3???120Vd.c.?
76
IEC 60950-12001??
77
IEC 60950-12001??
78
IEC 60950-12001??
79
IEC 60950-12001??
80
IEC/EN 60950-12001??
4.11 ????(creepage distances)???
(continued) - ???????IEC 60112????????,?????,????
material group IIIb 1.Material group I _____
?CTI (comparative tracking
index) 2.Material group II _____
?CTIlt_____ 3.Material group IIIa _____
?CTIlt_____ 4.Material group IIIb _____
?CTIlt_____ - ???????,???Annex F?
600
400
600
175
400
100
175
81
IEC 60950-12001??
82
IEC/EN 60950-12001??
83
IEC/EN 60950-12001??
84
IEC/EN 60950-12001??
85
IEC/EN 60950-12001??
86
IEC/EN 60950-12001??
87
IEC/EN 60950-12001??
88
IEC/EN 60950-12001??
89
IEC/EN 60950-12001??
90
IEC/EN 60950-12001??
4.13 ??????? (clause 2.10.5.1-2.10.5.2)
????????????????????????(2.10.5.1)? -
???????____V(____Vpeak?d.c.)??????-
?????,????????_____mm- ?????,????????????,??????
???,??_____ mm ??????- ??????????,???????????(two
tracks) ,???????,???2.10.5.1????
50
71
0.4
0.4
91
IEC/EN 60950-12001??
4.14 ??????? (continued) ??????,??????????,???
???????????,?????????????????,??????????(2.10.5.2)
- ???????__????????,?????___???????????????????
?- ?????___????????,???___????,??????????????????
?- ???????___????????,????___???????????????????
? - ?????____????????,???___????,?????????????????
??
2
1
3
2
2
1
3
2
92
IEC/EN 60950-12001??
4.14 ??????? (clause 2.10.5.4,Wound
components) ?????????????????,?????????,????????
?(basic),??(supplementary),??(double)???(reinforce
d)??,????(????)????2.10.5.1 ?/? 2.10.5.2
??????a),b)?c)???? a) ??(????)?????????????,?????
2.10.5.1 ? b) ??(????)???????,???????????????,???
??2.10.5.2???U??? ?
93
IEC/EN 60950-12001??
4.14 ??????? (continue) c) ??(????)???????,???
???????????,?????U???,??????(?extruded?wrapped
type)?????????????????? - ??????????????Extrude
d?? ????___?, wrapped?? ????___?? -
???????????????extruded?wrapped type????___?? -
???????????????extruded?wrapped type????___??
1
2
2
3
94
IEC/EN 60950-12001??
4.14 ??????? (continue) ???2.10.5.4
b)?2.10.5.4 c)????,??????????????????,????2L????_
__????,????????????,???2.10.8???,?????U.2????????
??1.6??   ???????????????,?????????________???,??
?????,??????????,????????????(??)
,???????????(??),??????????????????????????????,??
???5.2.2.???????????,??????????3000Vac,1 min.?
1
45-90
95
IEC/EN 60950-12001??
4.14 ??????? (continue)
700
120
E
1000
1000
120
E
1400
155
F
1000
1400
H
180
1000
130
B
1000
1400
96
IEC/EN 60950-12001??
5 ??????? 5.1 ???????????????? (clause
4.4.1-4.4.4) ??????????????,????????????,????
????????????????????????,??????????,?????????????,
???????(automatic timer starting)????????? -
??????????,????????,????????????????????????????,?
???????????????????????,???????????????,??????????

97
IEC/EN 60950-12001??
5.1 ???????????????? (clause 4.4.1-4.4.4)
(continued) - ???????????,????????,??????????????
???????? - ?????????????,???____________?______
????????? WARNING HAZARDOUS MOVING PARTS,
KEEP FINGERS AND OTHER BODY PARTS AWAY.
?????
??
98
IEC/EN 60950-12001??
  • 5.2 Thermal requirements
  • A. ??????,???????????,???????.
  • B. Thermoplastic materials ????,???pass Ball
    Pressure Test at min. 125
  • C. ???temperature limits?table 4B??.

99
IEC/EN 60950-12001??
100
IEC/EN 60950-12001??
101
IEC/EN 60950-12001??
5.3 ???????? ?Transportable equipment
enclosure??,?????????,??????????? -
???????????????????? a. ???????,?????___mm? b.
???___mm?,?????? c. ??????,??????????????,????????
???,?????4B?????? d. ??????,?????___
??????,?????????????????___ ??????????4D???
5
1
5
5
102
IEC/EN 60950-12001??
5.3 ???????? (continued) - ????????????????????
a. ???????,?????___mm? b. ???___mm?,?????? c.
???????,???????,????????4C??? d. ??????,?????____
??????,????????????????????____ ??????????4D???
5
1
5
5
103
IEC/EN 60950-12001??
5.3 ???????? (continue) - ???????????????????? a
. ????? b. ?????,?????????? 1.PVC,TFE,PTFE,TEP?ne
oprene???????????? 2.?__________?___________???? 3
.?????????___________??___________???????? c.
??____mm2?????,???????_____????????
????
????
?????
????
40
V-1
104
IEC/EN 60950-12001??
5.3 ???????? (continue) d. ?????,???????????,????
?4F ??? e.???????,???????????4B????
f.?????????,????????___mm___mm,
????????????_________mm?
2
2

0.45
105
IEC/EN 60950-12001??
5.3 ???????? (continue)
Figure 4B Examples of cross-sections of designs
of openings preventing vertical access
106
IEC/EN 60950-12001??
5.3 ???????? (continue)
Figure 4C Examples of louvre design
107
IEC/EN 60950-12001??
5.3 ???????? (continue)
Figure 4D Enclosure openings
108
IEC/EN 60950-12001??
5.3 ???????? (continue)
Figure 4F Baffle plate construction
Table 4C Size and spacing of openings in metal
bottoms of fire enclosure
109
IEC/EN 60950-12001??
5.4 ??????????? Transportable
equipment???????,?????????,???????????,??????,????
?LPS???????,???????,??,???????? - ???____mm?,???
??? ?? - ?????????(screen mesh),????????___mm___
mm,????????????_____mm? ?? - ???_________________
_____________?
1
2
2
0.45
????
110
IEC/EN 60950-12001??
5.4 ??????????? (continued) ??,?????????????????
,???????____VA?????????,????____mm?,?????????????
- ??????????,????????,????????,?????????????????
???____VA? ?? - ???________??????????
?? - ???????,????????????????,???????___VA???????
??
15
13
15
???
15
111
IEC/EN 60950-12001??
5.4 ???????????????? 1. ???????????????,?????,??
?4.7.2?4.7.3???,????,??????????????????????? 2.
????5.3.6?????????,??????????????? -
?????????????????????????????????????????_______??

??
112
IEC/EN 60950-12001??
5.4 ???????????????? (continued) a. ???????? b.
???????,?????????????2.5???? c.
???????,???????______????,??????????????2.5???? d.
???? e. ????????????,??????,??????????
V-1
113
IEC/EN 60950-12001??
5.4 ???????????????????????????? 1.?PVC,TFE,PTF
E,FEP,neoprene?polyimide??????????? 2.????4.7.3.2?
??????????????????? 3.????????,?????????_____?____
____???????____VA??? 4.????????,????????????2.5???
? 5.?????????,????????????2.5???,???????______????
?
??
????
15
V-1
114
IEC/EN 60950-12001??
5.5 ????????????????????????????
(continued) 6.???(power supply
cord)???????(interconnecting cable)????????? 7.???
8. ?????????,??????????????,?______?
____________???,?????____VA,???????_____?????
??
????
15
HB
115
IEC/EN 60950-12001??
Table 4C-Summary of material flammability
requirements  
5.6 ??,???????????????4C??
Table 4C-Summary of material flammability
requirements
116
IEC/EN 60950-12001??
5.6 ??,???????????? (continued)
Table 4C-Summary of material flammability
requirements
117
IEC/EN 60950-12001??
5.7 ???? (clause 4.2.10,wall or ceiling mounted
test) - ????????????,????????
??????? - ???????,????____N???(????) -
???? 1. ?????????????, ??????? 2. ????????____N,
??????????? ?, ???????????, ????????
?____ ??? - ?????????????,??????? ???????
50
50
?
118
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