1- Circuit breaker maintenance checklist:

Circuit breaker is a costly electrical device which is used for power supply making and breaking as switched On or switched Off. Preventive maintenance is a important activity for keeping good health of motor starter. Many type maintenance activity is carried out as monthly, quarterly, half yearly and yearly.
These all activities is carried out according maintenance checklist which is written step by step maintenance process.

2-Format or template of circuit breaker PPM checklist:

3 - Types of circuit breaker maintenance checklist:

• Monthly
• Quarterly
• Half Yearly
• Annually or Yearly

4-Details of safety guideline for circuit breaker PPM activity:

During PPM activity we should follow safety guideline for stopping any misshaping. Safety related some points below mentioned.

• Rack out circuit breaker from electrical panel.
• Use lock out and tag out on the electrical panel.
• Use insulated tools.
• Use personal protective equipment as safety shoes, helmet etc.
• After completion activity remove tools and tackles.
• After completion remove safety lock and signboard or tag.

5-Circuit breaker maintenance activity checkpoints:

• Ensure and check no power supply before starting PM activity.
• Clean properly fixed and moving contact in arch chamber.
• Check and clean contact holding mechanism like as spring charging etc.
• Check and adjust breaker protection relay setting as short circuit, earth fault and OL.
• Check all release in functional mode like as shunt coil, UV and spring charge.
• Check auto and manual function.
• Check earth connection with panel body.
• Check any abnormal sound on load condition.

Parameters status :

After carried out maintenance activity we should check parameters for equipment better health.

• Incoming Voltage
• Check load according capacity.
• Check parameters according default limit.
• Check any abnormal sound.

Go back to index ↑

---