Table of Contents
Advertisement
5.4 Electrical connections
DANGER
!
Risk of fatal injury due to the formation of
an explosive atmosphere.
For installation in hazardous areas, observe
the relevant standards that apply in the coun-
try of use.
Standard applicable in Germany:
EN 60079-14: 2008 (VDE 0165, Part 1)
Explosive Atmospheres – Electrical
Installations Design, Selection and Erection.
WARNING
!
Incorrect electrical connection will render the
explosion protection unsafe.
− Adhere to the terminal assignment.
− Do not undo the enameled screws.
− Do not exceed the maximum permissible
values specified in the EC type examina-
tion certificates when interconnecting in-
trinsically safe electrical equipment (U
U
, l
or I
, P
or P
0
i
0
i
− Include the solenoid valve in the on-site
equipotential bonding system.
Selecting cables and wires for type of pro-
tection Ex ia
Î Observe the relevant clauses of
EN 60079-14 for installation of intrinsi-
cally safe circuits.
Î Seal cable entries left unused with screw
plugs.
Î Fit equipment used in ambient tempera-
tures below –20 °C with metal cable en-
tries.
EB 3966 EN
, C
or C
and L
or L
0
i
0
i
Selecting cables and wires for type of pro-
tection Ex d
Î Observe the relevant clauses of
EN 60079-1 for installation.
Î Only use cable entries or conduit systems
that comply with EN 60079-1 and for
which a separate test certificate is avail-
able.
Î Seal cable entries left unused with suit-
able screw plugs.
5.4.1
Î The Type 3766 Solenoid Valve is to be
connected using suitable cable entries or
conduit systems that comply with
EN 60079-1, clauses 13.1 and 13.2
and for which a separate test certificate
is available.
or
i
Î Do not use cable glands (PG cable
).
0
glands) and blanking plugs of simple
construction.
Î Seal entries left unused in the Type 3966
Solenoid Valve as specified in
EN 60079-1, clause 11.9.
Î Install the connecting cable of the
Type 3966 Solenoid Valve properly so
that it is protected against mechanical
damage.
Î If the temperature at the inlet parts ex-
ceeds 70 °C, use a temperature-resistant
connecting cable.
Measures for preparation
Conditions concerning
connection according to
PTB 08 ATEX 1024
31
Advertisement
Table of Contents
