VCB - Linh Trung

05
5.5 Lubrication
Lubrication of the operating mechanism is necessary only
every 10 years or every 5,000 operating cycles.
In general, the circuit breaker requires only moderate
lubrication at regular intervals and all excess must be
removed with a clean cloth to prevent any accumulation of
dust or dirt. Avoid any lubricant on insulation or other
electrical parts.
Moving parts should then be moved slightly to let the
grease penetrate and become properly distributed.
Now operate the breaker several times manually.
Our recommended grease for lubrication is Shell Albania
No. 2.
The points to be lubricated inside of mechanism housing
are shown in Fig. 5-2.
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