Standard operating procedure for Earth Pit Maintenance (SOP)

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                     PURPOSE:

1.1                   To describe standard work procedure for the maintenance of Earth pit.

                                                           

2                     SCOPE:

2.1                   This procedure is applicable for the preventive maintenance for Earth pit 

3                     REFERENCE:

3.1               maintenance Check list

3.2               IS 3043-1987

4                     Other SOPs having reference to this SOP.

4.1          Nil

4.2               Nil

5                     DEFINITION:

5.1        Nil

6                  Maintenance Procedure:

·         As per the Preventive Maintenance schedule,  Engineer informs Powerhouse and  allot Technicians

·         Get the work permit from Engineer.

·         Necessary PPE’s to be used for PM activities.

·         Check the condition of Earth resistance Meter  and it working properly

·         Arrange the two electrode  for Earth pit checking

·         Check the tightness of Connection and clean the Earth Pit

·         Connect the equipment  as per Fall of Potential method

·         Taken Earth resistance value When Grid Connected(below 2 Ohm)

·         Taken Earth Resistance value when Grid disconnected(below 5 Ohm)

·         If  Earth resistance value is low , adding water and salt in the Pit

·         After completion of the PM work, the same should be communicated to respective area Engineer

·         Fill all data in Check List

·         After the PM inform to Power House

·         This preventive maintenance will be carried out once in year  as per schedule

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