nVent RAYCHEM 00123456, Руководство пользователя

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3. Electrical connection
3.1 Installation notes
Requirements for personnel
• Work on the device must only be carried out to the extent
described and, like the electrical connection, only by
qualified personnel.
• Before plugging and unplugging connecting cables, it must
be ensured that the acting person is electrostatically
discharged (by touching grounded metallic parts,
for example).
Cables, shielding, and grounding
• When selecting the electrical wiring material as well as
when installing and connecting the device electrically, comply
with the requirements of DIN VDE 0100 “Low-voltage
electrical installations” and the applicable country-
specific regulations (for example, based on IEC 60364).
• It may be necessary to adhere to special notes relating to the
heat resistance of cables (see connection diagram).
• Route input, output, and supply lines separately and not
parallel to one another.
• Only use shielded and twisted probe and interface cables.
Do not route the lines close to current- carrying components
or cables.
• For temperature probes, ground the shielding on one side in
the control cabinet.
• Do not perform loopthroughs on the grounding cables, but
instead route the cables individually to a shared grounding
point in the control cabinet; in doing so, ensure that the
cables are as short as possible.
• Ensure that the potential equalization is correct.
Electrical safety
• The device is intended to be installed in control cabinets
or plants. Ensure that the customer’s fuse protection does
not exceed 20 A. Disconnect the device from the mains
voltage on all poles prior to starting service or repair work.
• The relay’s load circuit can be operated with a hazardous
electrical voltage (e.g. 230 V). De-energize the load circuit
during mounting/dismounting and electrical connection.
• To prevent the relay contacts being destroyed in the case of
an external short-circuit in the load circuit, the latter must be