Special Danger Warnings; Hazards Due To Ac Supply Voltage; Ac Power Supply - R&S N 8000 Series System Manual

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Special Danger Warnings

4.1

Hazards due to AC Supply Voltage

There is a risk of electric shock with any V
ate measures must be taken to prevent exposure to any danger when working with voltages
that bear the risk of electric shock. Never work on live parts unless specifically required and
only if the special safety precautions are complied with.
4.1.1

AC Power Supply

Before connecting the AC power supply, it is important to ensure that the power supply
specifications given for the system or instruments match the nominal specifications for
the local power supply network. The power supply circuit must be protected by means
of fuses in order to prevent overloads and short-circuits.
Miniature modules have neutral conductor fuses. As a result, the power supply may still
be connected even after interruption of the circuit by a fuse.
It is quite possible for a transmitter to have several separate electric circuits. Each of these
circuits is subject to the following requirements:
All electrical connections between the transmitter and the AC power supply must comply
with the following conditions:
– The transmitter can be disconnected at any time.
– The transmitter can be prevented from being switched back on.
– The transmitter is terminated with a fully protected power cable matched to the power
consumption.
– Ensure that phase rotation is correct (direction of rotation of fans!).
Service sockets
It is common practice to equip transmitters with a connector that carries voltage even when
the transmitter is turned off and that allows power to be supplied to test equipment or a sol-
dering iron. These connectors are identified, e.g. by an LED, and may only be used for the
aforementioned purposes.
The intended purpose of the sockets means that they have only a limited power output. The
connector is not suitable for supplying power to heating equipment or large test sets.
The transmitter operator is responsible for providing the correct fuse protection (the
maximum value is specified on the socket).
In the case of accessory parts that are not connected to the main transmitter, the trans-
mitter operator is responsible for taking appropriate measures to ensure that the instal-
lation is safe in the respective switching state.
1 Obtain the specifications from this documentation and also adhere to the breaking capacity limits of the fuses
and circuit breakers in the transmitter.
2098.1190.72
Chapter 1
rms
1
- 1.4 -
Safety Instructions
> 30 V AC or V > 60 V DC voltage. Appropri-
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