Ht panel maintenance checklist

HT panel preventive maintenance: schematic diagram and checklist.

2 -Panel maintenance checklist format:

HT panel preventive maintenance: template of checklist.

3 -Electrical panel PPM schedule:

In one year maintenance activity is carried out many times according time schedule so it is called maintenance frequency which is below mentioned.

Monthly PPM
Quarterly PPM
Half yearly PPM
Yearly PPM

4 -Electrical panel PPM procedure:

PPM working procedure is carried out according time schedule. The procedure of PPM is going to explain according time schedule as per below mentioned.

1 - Monthly Preventive maintenance:

When once im a month the PM activity is carried out then it is called as monthly PM activity. A maintenance checkpoint list is followed during maintenance activity which is given below mentioned.

Clean the panel with air blower and clothes.
Check all busbar connection input and output.
Check all circuit breaker input and output connections.
Check any abnormal sound in panel.
Check earthing connection with panel.
Check all measuring instruments meters.
Check all circuit breaker functions
Check indicators, selector switches
Check all parameters on load.

2 - Quarterly Preventive maintenance:

When once im a three months, the PM activity is carried out then it is called as Quarterly PM activity. A maintenance checkpoint list is followed during maintenance activity which is given below mentioned.

First of all repeat monthly PM checkpoints.
Check any hot spot in panel.
Check all circuit breaker load according capacity.
Check thimble terminal temp.
Check earthing value with panel it should be less than 2 ohm.
Check panel accessories and accessories connection.

3 - Half Yearly Preventive maintenance:

When once im a six months, the PM activity is carried out then it is called as half yearly PM activity. A maintenance checkpoint list is followed during maintenance activity which is given below mentioned.

First of all repeat monthly and quarterly PM activity.

4 - Yearly Preventive maintenance:

When once im a year, the PM activity is carried out then it is called as yearly PM activity. A maintenance checkpoint list is followed during maintenance activity which is given below mentioned.

First of all repeat monthly and quarterly PM activity.
Check all busbar connection and tight properly.
Calibrate all measuring instruments like as ammeter and voltmeter etc.
all circuit breaker maintenance properly.