Cable Channel - Siemens NXAirS Manual

NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV
Operation of NXAirS
Operating procedures
24
Attention!
If the operating handle is not inserted correctly, it may result in the damage of earthing switch.
Insert the operating handle into the operating hole and push it to limit place.
Open the padlock (option).
Pull the sliding baffle plate on the hole of operating handle upwards, and the
operating hole is open.
Insert the operating handle of earthing switch into the operating hole.
Rotate the operating handle anticlockwise by 90˚.
√ Indicator for switch status displays "0" Earthing switch is open.
Take out the operating handle.
Sliding block of operating hole is closed.
Lock up the padlock (option).
13.11 Cable channel
If the earthing condition is available, close the earthing switch of feeder (refer to
Page 21 "13.9 Earthing of feeders").
Open the HV door (refer to Page 15 "Open the HV door").
Take out SION module (refer to Page 27 "2. Take out VCB from the cabinet").
Check whether the indicator for earthing switch of feeder in truck room displays "1"
(i.e. earthing).
Dismantle the separator plate between truck compartment and cable compartment.
Check whether the earthing switch is grounded.
Drawing 15. Earthing switch open