36
7 Commissioning and other work
MANUAL CEAG AUtoMAtiC tEst systEM At-s
+
40071860177 (C) December 2016 www.ceag.de
7 Commissioning and other work
7.1 Checking all connections
Before switching on the automatic test system:
•
check that the complete system is isolated and lock it
out. Do not restore the supply until all work has been
completed.
•
examine the condition of all cables and connections by
reference to the drawings and plans for the automatic
test system, and check that the installation work
complies with the relevant standards and codes of engi-
neering practice.
•
check that all connections and screw fastenings are
tight.
•
check all cable glands for tightness and seal quality.
7.2 Voltage measurements
•
Measurements of supply voltages and measurements
on the final circuits may only be carried out by qualified
electricians!
•
Be aware of the particular hazards when carrying out
measurements on multiple-phase power supplies!
•
Only use instruments with adequate voltage and current
strength!
•
All measurements within internal installations may only
be carried out by CEAG service engineers!
7.3 Insulation Testing
•
Check that the complete system is isolated and lock it
out. Do not restore the supply until all work has been
completed.
DANGER!
Insulation tests may only be carried out between
the PE conductor and every phase conductor L1, L2
and L3 as well as between the PE conductor and the
neutral conductor N . Do circuits contain electronic
equipment, the neutral conductor and the phase
conductor must be connected while measuring .
Test voltage: max . 500V DC, Test current 1 mA!
Use only measuring devices which are able to meet
the demands of DIN VDE 0413 .
•
Disconnect the connecting cables for the mains supply.
•
Link the connections L and N of the switch cabinet
at the terminals of the mains supply or outgoing
distributors.
•
Carry out the insulation test as shown in below figure
for
– the connections of the mains supply (L/N) against PE
for the AT-S+ cabinet and its outgoing circuits
– and similarly for the substations.
•
At the AT-S
+
switch cabinet, link connections U1/O1 etc.
at the output terminals of the final circuits of the cabinet
and test the insulation for the final circuits U1/O1 or U2/
O2 etc. against PE.
•
On completion of the insulation tests, remove the links
across terminals L/N (on the mains supply and/or outgo-
ing circuits) and U1/O1 etc. at the terminal of the final
circuits.
•
Reconnect all disconnected cables and check the PE
connected on the cabinet door.
AT-S
+
a)
b)
a: Insulation test on the power
supply (mains)
b: Insulation test on final circuits
NOTE
Linking L / N and U1 / 01 ( ... ) will protect active compo-
nents of the electronics in the AT-S
+
cabinet and of the
luminaires (ballasts) from possible destruction!
