Operation And Maintenance Of Electrical Systems/Electrical Installations - Electrical Substation Mrs By Providing Three Electricians In Three Shift, Operation And Maintenance Of Electrical Systems/Electrical Installations - Electrical Substation Mrs By Providing Three Helpers In Each Shift, Operation And Maintenance Of Electrical Systems/Electrical Installations - Mebo Substation To Sigar One Electrician In One Shift, Operation And Maintenance Of Electrical Systems/Electrical Installations - Mebp Substation To Sigar, Operation And Maintenance Of Electrical Systems/Electrical Installations - Attending Complaints By Three Electricians In Three Shifts, Operation And Maintenance Of Electrical Systems/Electrical Installations - Attending Complaints By Three Helpers In Three Shifts