Final Installation Work; Mounting Cables With Plugs; Connecting Low-Voltage Cables; Mounting The Metal Covers - Siemens 8DA Installation Instructions Manual

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Checking the gas pressure
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12

Final installation work

12.1

Mounting cables with plugs

ATTENTION!
The dust-proof caps supplied on the sockets of the multiple panel connections do not
provide sufficient shock protection.
!
Close unused sockets of multiple panel connections with dummy plugs.
!
Proceed according to the installation instructions of the corresponding plug
manufacturer.
!
Fit cable strain relieves. Distance between the lower edge of the flange dome and
the cable strain relief: 450 mm as a minimum.
!
Connect the cable shield at the cable strain relief.
12.2

Connecting low-voltage cables

!
Remove the metal covers from the frames.
!
Open the doors of the low-voltage compartments.
!
Fix the low-voltage cables at the holders provided for this purpose.
!
Connect the ends of the cables to the terminals in the low-voltage compartments
according to the circuit diagram.
!
Close the doors of the low-voltage compartments.
12.3

Mounting the metal covers

!
Screw all metal covers to the supporting frames again.
13

Tests

13.1 Checking the SF -gas filling
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DANGER!
Operation with an incorrect SF
!
Do not put the switchgear into operation with too high or too low SF
pressures.
Before commissioning or a rated short-duration power-frequency withstand voltage test
the gas pressures of all gas compartments must be checked.
!
On all gas compartments filled at site: After having filled the gas compartments,
observe a temperature compensation time of 24 hours. Do not check the gas
pressure before that time.
!
Check the gas pressure in all gas compartments filled at site. If the limit values
adjusted on the indicators are underflown or exceeded, correct the gas pressure.
-gas pressure can destroy parts of the switchgear.
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-gas
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