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Right horn, internal horn and right horn
Remove the remaining contact material from the horn, which settles there during switching off.
Left beam, right beam
Clean the beams of contact material tarnish and carbon black and remove the dust.
Arc chute release for operation.
Make sure that arc chute is seated correctly in the insulating tray of the circuit-breaker and flexible
cables are connected in accordance with the drawing placed on the arc chute. Carry out a voltage test on the
circuit-breaker with 10 kV, 50 Hz, 1 min voltage.
14. PACKAGING, TRANSPORT, STORAGE
Circuit-breakers and arc chutes are protected from moisture and mechanical damage in transport. Avoid
sudden shocks and overturn of cases during transport.
Circuit-breakers should be stored in closed spaces, that are dry, free of dust and chemically active vapours and
gases.
When lifting, use the circuit-breaker handles /40/ and arc chute axis /32/ as in fig.18. Be careful not to damage
circuit-breaker components, in particular the insulating trays. Circuit-breakers must not be exposed to
mechanical shocks during transport and storage. The surfaces of the keeper /7/ and the core /17/ are protected
with vaseline for transport and storage.
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