Samson 4746, Монтаж и эксплуатация

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EB 8365 EN 19
Connections
4 Connections
4.1 Electrical connection
DANGER!
For electrical installation, observe the
relevant electrotechnical regulations
and the accident prevention regula-
tions that apply in the country of use.
In Germany, these are the VDE regu
-
lations and the accident prevention
regulations of the employers’ liability
insurance.
The following regulations apply to
installation in hazardous areas:
EN 60079-14:2008 (VDE 0165,
Part 1) Explosive Atmospheres – Elec
-
trical Installations Design, Selection
and Erection.
NOTICE
Adhere to the terminal assignment!
Switching the assignment of the elec -
trical terminals may cause the explo -
sion protection to become ineffec-
tive. Do not loosen enameled screws
in or on the housing. The maximum
permissible values specified in the
EC-type examination certificates ap
-
ply when interconnecting intrinsically
safe electrical equipment.
(U
i
and U
0
, I
i
and I
0
, P
i
and P
0
, C
i
and C
0
as well as L
i
and L
0
)
Note on the selection of cables and
wires:
Observe clause 12 of EN 60079-14
(VDE 0165, Part 1) for installation of
the intrinsically safe circuits.
Clause 12.2.2.7 applies when run -
ning multi-core cables and wires with
more than one intrinsically safe cir-
cuit.
The radial thickness of the insulation
of a conductor for common insulating
materials (e.g. polyethylene) must not
be smaller than 0.2 mm. The diame
-
ter of an individual wire in a fine-
stranded conductor must not be
smaller than 0.1 mm. Protect the con -
ductor ends against splicing, e.g. by
using wire-end ferrules.
When two separate cables are used
for connection, an additional cable
gland can be installed. Seal cable en -
tries left unused with plugs. Fit equip -
ment used in ambient temperatures be-
low –20 °C with metal cable entries.
