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IEC 60065, 6th edition : 1998

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- Page 25 of 32 - 

 

 

   

 

Order No.  200225249 

 

 

 

Components and parts as above but 
shielded from a potential ignition 
source, with the barrier area in 
accordance with Table 13 and 
fig. 13  

 

20.2 

Fire enclosure 

 

20.2.1 

Potential ignition sources with open 
circuit voltage > 4 kV (peak) a.c. or 
d.c. contained in a fire enclosure to 
FV 1  

 

20.2.2 

Internal fire enclosures with 
openings not exceeding 1 mm in 
width and with openings for wires 
completely filled  

 

20.2.3 

Requirements of 20.2.1 and 20.2.2 
met by an internal fire enclosure  

 

 

 

A.5.1 

j) Marked with IPX4 (IEC 60 529), 
5.4.1 a) does not apply  

 

A.10.2.1 

Enclosure provides protection 
against splashing water  

 

A.10.2.2 

Humidity treatment carried out for 
7 days  

 

 

 

B.5.4.1 

e) Where the separation of TNV 
circuits from other circuits relies on 
protective earthing the instructions 
make it clear that protective earthing 
is essential  

 

B.8.1 

TNV circuits separated from the mains circuit and from hazardous live parts by either: 

 

 

a) double or reinforced insulation  

 

 

b) basic insulation with earthed 
protective screening  

 

B.8.2 

TNV circuits separated from circuits 
other than those in B.8.1 and from 
accessible conductive parts by basic 
insulation meeting the requirements 
for clearances and creepage 
distances for the voltages concerned  

 

 

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IEC 60065, 6th edition : 1998

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- Page 26 of 32 - 

 

 

   

 

Order No.  200225249 

 

 

B.9.1.1 

TNV circuit terminals contacts which 
cannot be touched by probe B.1, 
exempt from the requirements 
inaccessible terminal contacts in 
9.1.1  

 

B.10.1 

Insulation between TNV terminals 
and antenna terminals (including 
interconnection terminals which may 
be connected to equipment with 
antenna terminals) withstands the 
50 discharges of 10.1  

 

B.14.12 

Surge suppressors between TNV 
circuits and other parts of the 
equipment have breakdown voltage 
at least 1,8 times the mains voltage  

 

 

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IEC 60065, 6th edition : 1998

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- Page 27 of 32 - 

 

 

   

 

Order No.  200225249 

 

 

 

 

LIST OF CRITICAL COMPONENTS 

 

Part No 

Component/ 
Object 

Manufacturer 

Type / Model 

Ratings / 
Technical 
Data 

Complies 
with the 
following 
standard 

Marks of 
conformity 
granted ** 

 

Mains 
transformer 

Fuzhou Xiangban Co. 

BCK-ER2803  Class E 

IEC60065 

1) 

 

Filter Coil 

Fuzhou Xiangban Co. 

LCLET20-
010 

Class B 

IEC60065 

1) 

 

Mains plug 
with Cord 
 

LEONI 

H03VVH2-F 

6A/300V 
2x0.75mm² 

IEC60884 

N, FI, VDE 

 

Mains fuse 

Littlefuse 

50T 

1A/250V 

IEC60127-1 

VDE 

 

Mains switch 

Zhang Jia Gang 

PS4 

5/80A 250V 

IEC61058-1 

VDE 

 

X-capacitor 

Xiamen Fara Developm. 

Nanjing General Electric 

MKT 61 
 
CT7 

0.1uF 275V 
 
1nF/4.7nF 
400V 

IEC60384-
14 

S 
 
VDE 

 

Y- capacitor 

Nanjing General Electric 

CT7 

1nF/4.7nF 
400V 

IEC60384-
14 

VDE 

 

Optocoupler 

Sharp 

PC817 

 

IEC60950 

FI 

 

Smoothing 
capacitor 

Various 

Various 

68uF 450V 

 

 

 

Comments 

 

 

**) Marks listed under “Marks of conformity granted” indicates that Nemko has verified certifications  respectively 

1.) Tested as part of the Apparatus according to EN 60 065 / IEC 60065, 6.Edition : 1998 

 

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IEC 60065, 6th edition : 1998

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- Page 28 of 32 - 

 

 

   

 

Order No.  200225249 

 

 

 

 

FAULT CONDITION TESTS  

Ambient temperature  

 25°C 

Rated voltage  

90 – 250V 

Remarks  

 

Comp. 
No 

Fault 

Test V 

Short 
current 

Test 
time 

Fuse No 

Current 
through 
fuse 

Mains power/temperatures/results 

D4 

S-c 

265V 

 

10 min 

F1 

0.02A 

Power shut down. Max temp on 
transformer coil is 115°C. L4 def. 
No hazard.  

D5 

S-c 

265V 

 

<1 sec 

F1 

0.11A 

Power shut down immediately. No 
temperature rises. No hazard. 

D6 

S-c 

265V 

 

<1 sec 

F1 

0.09A 

Power shut down immediately. No 
temperature rises. No hazard. 

D7 

S-c 

265V 

 

5 sec 

F1 

0.09A 

Power shut down. R102 def. No 
hazard. 

D8 

S-c 

265V 

 

10 min 

F1 

0.02A 

Display is not working.  Max temp 
on transformer coil is 95°C. L4 def. 
No hazard. 

D3 

S-c 

265V 

 

10 min 

F1 

0.02A 

Power shut down. Max temp on 
transformer coil is 102°C. L4 def. 
No hazard.  

C4 

S-c 

265V 

 

<1 sec 

F1 

0.1A 

Power cycles. No temperature 
rises. No hazard. 

C10 

S-c 

265V 

 

<1 sec 

F1 

0.12A 

Power cycles. No temperature 
rises. No hazard. 

C11 

S-c 

265V 

 

<1 sec 

F1 

0.12A 

Power cycles. No temperature 
rises. No hazard. 

C39 

S-c 

265V 

 

<1 sec 

F1 

0.02A 

Display is not working. D8 
defective. L4 def. No high 
temperature rises.  No hazard. 

IC3 

A-K

 

S-c 

265 

 

<1 sec 

F1 

0.02A 

Power goes into standby. No 
temperature rises. No hazard. 

R14 

O-c 

265 

 

8 min  

F1  

0.01A 

Output overvoltage. No hazardous 
voltages out of apparatus. Lot of 
components broken on secondary 
side. No high temperature rises. L4 
broken on primary side. No hazard. 

F No = Fault Number, S-c = Short-circuit, Dis = Disconnection