ABB DCBreak 1815, Инструкции по установке и эксплуатации

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D I S TR I B UTI O N SO LUTI O N S 19
8.7. Earth connection
Make the earth connection and tighten to 10 Nm
torque value
IMPORTANT! The section of the earth
connection must be over 35 mm
2
8.8. Final inspection
DANGER!
• Connect circuit breaker to auxiliary voltage
supply for final inspection, with main
circuit dead and without connecting
terminals to main circuit.
• Never ever operate the energized circuit
breaker without the arc-quenching chute
completely assembled and fastened to the
body of the circuit breaker by the 4 screws
(electrical connection of the arc ramps on
the circuit breaker body and the arc-
quenching chute must be guaranteed).
• Make sure that the arc-quenching chute has
been correctly fastened to the circuit
breaker and that this latter is fastened to
its support.
• Check that the earth connection has been
assembled properly and screwed down in
position.
• Check that the auxiliary connections are
tight and that the cables are properly fixed.
• Make sure that the release settings
conform to those required by the
documents and specific application.
• Operate the DCBreak circuit breaker
several times in the absence of voltage in
the main circuit to check that it has been
assembled correctly and that it performs
the no-load closing-opening operations
properly.
• Connect the cables and busbars to the
main circuit as required by the specific
application.