6
Electrical installation
6.1
Safety
6.1.1
Notes on electrical installation
Connection work
WARNING
Risk of injury and damage caused by electrical current!
As a result of equipotential bonding currents between the device and other grounded
devices in the system, faulty grounding of the device can give rise to the following
dangers and faults:
•
Dangerous voltages are applied to the metal housings.
•
Devices will behave incorrectly or be destroyed.
•
Cable shielding will be damaged by overheating and cause cable fires.
Remedial measures
•
Only skilled electricians should be permitted to carry out work on the electrical
system.
•
If the cable insulation is damaged, disconnect the voltage supply immediately and
have the damage repaired.
•
Ensure that the ground potential is the same at all grounding points.
•
Where local conditions do not meet the requirements for a safe earthing method,
take appropriate measures. For example, ensure low-impedance and current-carry‐
ing equipotential bonding.
•
Electrical installation must only be performed by electrically qualified personnel.
•
Standard safety requirements must be observed when working on electrical
systems!
•
All connection work must be performed at ambient temperatures above 0 °C,
•
Electrical connections between the device and other devices may only be made
or separated in a voltage-free state. Otherwise, there is a risk of damaging the
devices.
•
In the case of open end connecting cables, make sure that bare wire ends do
not touch. This creates a risk of short-circuits if the supply voltage is switched
on. Wires must be appropriately insulated from each other. This also applies to
unused wires.
•
Execute the wire cross-sections of the data cables as well as the cables for digital
inputs and outputs in line with applicable national norms.
•
All cables must be designed for the ambient temperature range at the installation
site.
NOTE
For additional instructions on operating the device at ambient temperatures below
0 °C:
Supply voltage
•
Connect the device only to the permissible supply voltage,
.
•
The wire cross-sections in the supply cable from the user’s power system must be
selected in accordance with the applicable national standards. When this is being
done in Germany, observe the following standards: DIN VDE 0100 (Part 430) and
DIN VDE 0298 (Part 4) and/or DIN VDE 0891 (Part 1).
ELECTRICAL INSTALLATION
6
8025309//2020-12-08 | SICK
O P E R A T I N G I N S T R U C T I O N S | RFH5xx
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Subject to change without notice
