| 摘要 |
A switching installation (5) having a circuit breaker (12), which is connect ed to a cable connection (33), and optionally a disconnector (14) for making or breaking a conductive connection between the cable connection (33) and a rai l system (15), and an electrically insulating barrier (10). The electrically insulating barrier (10) surrounds at least the parts which are under electri c voltage in operation from the circuit breaker (12) to the rail system (15), including a branch (18) leading to a rail (15) of the rail system, separatel y for each phase of the switching installation (5). Furthermore, inside the electrically insulating barrier (10) the switching installation may be provided with field-control means and/or voltage-sealing means (22, 25, 37).
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