ABB UniSec DY800, Инструкции по установке, обслуживанию и техническому обслуживанию

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B
A
C
D
1
2
3
4
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UNISEC DY800 - E D. 4 - ACCORDING TO E- DISTRIBUZIONE SPECIFIC ATIONS
- INS TA LL ATI ON M A NUA L
DY800/316
8.4 Duct for exhausting fumes
due to overpressure
• Do not touch the exhaust vents of the fumes
exhaust stack when the switchgear is live
• Do not install apparatus in the area where fumes
are exhausted
• Do not walk on the switchgear and keep away
from the area over it when the switchgear is live
The possibility of an electric arc occurring inside the
cubicle is very remote.
If it should occur, proceed as described below to
eliminate the fumes:
UniSec DY800/116 and 216
• Internal arc in the busbar duct
– open the flap (1) to allow the fumes to flow into
the stack (2)
– the cable compartment flap (3) remains closed
– fumes escape from the exhaust vent of the stack
(4).
• Internal arc in the cable compartment
– open the flap (3) to allow the fumes to flow into
the stack (2)
– flap (1) remains closed;
– fumes escape from the exhaust vent of the stack
(4).
A (mm) ≥ 350
B (mm) ≥ 100
C (mm) ≥ 1200
(*)
D (mm) ≥ 100
(*) Dimension C represents
the space required to
withdraw the cubicle
—
8. Installation