Bticino Megabreak T803LE1250, Руководство по обслуживанию

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50
4.3 CTS - Arc Chutes
Tools necessary:
Torx 30
Ohmmeter
• Visual and cleaning
Remove the arc chutes.
Check presence of breaking or damaging.
In case of breaking parts
➔
replace the arc chute (spare part).
Check the presence of copper dust or traces of melted copper Clean with dry compressed air.
If necessary replace the arc chute (spare part).
• Check the insulating between arc chute plates
Clean with dry compressed air.
By using an ohmmeter check the insulating between arc chutes plates.
If necessary replace the arc chute (spare part).
2
0.7
0.4
5
0.6
0.5
Ir
2
0.9
8
0.8
10 xIr
3 Im
6
4 5
xIn
0.
20
10
tr
tm
0.2
I>1.05
I>.90
xIr
ON
N
0.0 0
0.0 2
0.0 4
0.06
0.08
0.1
1
.
.
5
Ii
Icw
4
3
2
8
6
10
12
15
xIn
2
0.7
0.4
5
0.6
0.5
Ir
2
0.9
8
0.8
10
xIr
3
Im 6
4 5
xIn
0.1
20
10
3
tr
tm
0.2
I>1
.05 I>.9
0
xIr
ON
N
0.0
0 0.0
2
0.04
0.06
0.08 0.1
1
.
. 5
Ii
Icw
4
3
2
8
6
10 12
15
xIn
5 Nm
Dejon cell plates