500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 63/121
Installation
13 Electrical connections
In the instructions given in the following sections it is assumed that a new switchgear is being
installed which has not yet been connected to the mains, and is not live.
For extending or replacing parts of an existing switchgear, the Five Safety Rules must be
observed:
13.1 Connecting high-voltage cables
For common features and suitable cable plugs, see page 16, "Cable connection".
DANGER
High voltage! Danger!
➭ Isolate.
➭ Secure against reclosing.
➭ Verify safe isolation from supply.
➭ Earth and short-circuit.
➭ Cover or barrier adjacent live parts.
ATTENTION
Surfaces of high-quality joints at the bushings can be damaged by incorrect handling.
➭ Observe extreme cleanliness.
➭ Avoid damages caused by the threaded stud while pushing on.
ATTENTION
In case of spare feeders without connected cables, please observe the following:
➭ Switch the three-position disconnector or three-position switch-disconnector to EARTHED
position, and lock it.
➭ Alternatively: Mount surge-proof caps.
ATTENTION
For perfect installation of the cable plugs, the following must be observed:
➭ Mount the cable plugs according to the manufacturer's stipulations.
➭ If there are no stipulations by the cable plug manufacturer, please contact the regional
Siemens representative.
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