GV LDK 400, Руководство пользователя

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Important information xii
Base Station earthing
The rear of the unit has two separate screw terminals for protective earth (PE) and
video earth (VE). These are normally connected by a metal strap.
Metal strap
VE
PE
The protective earth terminal is internally connected to the protective earth conductor
of the power cable. In normal circumstances the connection between the protective
earth and the video earth should not be broken. If required, the central earth
connection wire of the studio can be connected to terminal PE.
Only if the studio (or OB van) is equipped with separate protective and video earth
systems may the metal strap be removed. Under these circumstances the video earth
terminal must be connected to the central functional earth potential (video earth) of
the studio. This earth potential should have functional protective and noiseless earth
(FPE) qualities as stated in the VDE regulation 0800/part2. A low impedance
interconnection of both earth conductors must be provided at the central studio
earthing point.