Philips HUSON7 Series, Руководство по обслуживанию

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Safety Test Requirements
All units t h at are returne d f o r ser v i c e o r re p air must
p ass t h e o ri g ina l manufa c tures safety tests . Safety
testin g requires bo t h an d testin g. Hipot Ground Continuity
HI-POT TEST INSTRUCTION
1.Application requirements
2.
1 . 1 All mains op erate d p r od u c ts must p ass t h e H i -Po t
test as
d es c ri b e d in t h is instru c ti o n .
1 .2 T h is test must b e p erf o rme d a g ain after t h e cov ers
h a v e
b een refitte d f ollow in g t h e re p air , ins p e c ti o n o r
m od ifi c ati o n
o f t h e p r od u c t .
2. 1 C o nne c tin g co n d iti o ns
2. 1 . 1 T h e test s p e c ifie d must b e a ppl ie d b et w een t h e
p ara ll e l-
bl a d e pl u g o f t h e mains co r d an d a ll a cc essi bl e
meta l
p arts o f t h e p r od u c t .
2. 1 .2 B ef o re c arryin g o ut t h e test , re l ia bl e co n d u c ti v e
co nne c ti o ns must b e ensure d an d t h ereafter b e
maintaine d t h r o u gho ut t h e test p eri od.
2. 1 . 3 T h e mains s w it ch( es ) must b e in t h e "ON" po siti o n .
2.2 Test Requirements
All p r od u c ts s ho u ld b e H i Po t an d G r o un d C o ntinuity
teste d as f ollow s :
Test 282 0 V DC 1700 V DC Test c urrent :
vol ta g e (2 000 VA C ) ( 1 2 00 VA C ) 25A,A C
Test time :
Test time 3 se co n d s 1 se co n d 3
se co n d s ( min .)
( min .) Resistan c e
require d:
Tri p set at 100 u A 5 m A <= 0 . 09 + R oh m ,
c urrent f o r M a x. R is t h e
( Tester ) l imitati o n ; set resistan c e o f
at 0 . 1 u A f o r t h e mains co r d.
M in . Limitati o n
Ram p set at 2
time se co n d s
( Tester )
Test met hod
C o n d iti o n H i Po t Test f o r H i Po t Test f o r G r o un d C o ntinuity
p r od u c ts wh ere p r od u c ts wh ere Test requirement
t h e mains in p ut t h e mains in p ut is
ran g e is F u ll 110 V A C (U S A
ran g e (o r 22 0 V ty p e )
A C )
2.2. 1 T h e minimum test d urati o n f o r Q ua l ity C o ntr ol
I ns p e c t o r
must b e 1 minute .
2.2.2 T h e test vol ta g e must b e maintaine d w it h in t h e
s p e c ifie d
vol ta g e + 5%.
2.2. 3 T h ere must b e n o b rea kdow n d urin g t h e test .
2.2.4 T h e g r o un d in g bl a d e o r p in o f mains pl u g must b e
co n d u c te d w it h a cc essi bl e meta l p arts .
3. E qui p ments an d C o nne c ti o n
3 . 1 . E qui p ments
Fo r e x am pl e :
- C h en Hw a 903 2 P R OG R AMMAB L E AU T O S AFE T Y
T E ST E R
- C h en Hw a 5 10 B Di g ita l G r o un d in g C o ntinuity
- C h en Hw a 901 (A C H i -po t test ), 90 2 (A C , DC H i -
po t test ) W it h stan d in g Tester
3 .2. C o nne c ti o n
4.
R ecor din g
H i po t an d G r o un d C o ntinuity testin g re co r d s h a v e t o b e
k e p t f o r a p eri od o f 10 years .
* Turn o n t h e pow er s w it ch o f m o nit o r b ef o re H i po t an d
G r o un d C o ntinuity testin g.
C o nn ect t h e " v id eo ca bl e "
or " gro undin g s cre w"
to t h e CLIP o n y o u r te s ter .
Vid eo ca bl e
(Rear view of monitor)
C o nn ect t h e po w er cor d
to t h e m o ni tor .
Grounding screw
P o w er o u t l et
(ChenHwa 9032 tester)
C l i p
Clip