MANUAL TITLE: EFFECTIVITY DATE:DOCUMENT CODE:

January 28,2015

REVISION NO. 0 PAGE 1 of 2

PREPARED : CHECKED : APPROVED:

ENGR. RENDLE RAI S. CUA ARIEL C. SECRETARIA YOSHIO SUZUKIElectrical Supervisor Maintenance Manager Plant Manager

Reset the LVSG with proper and safety procedure.

3. Instruction Detail

Process Flow Specific Activity Picture

The Electrical personnel will go toElectrical Room 1st floor to confirm the LVSG trip. If confirm the trip, announce the situation. Inform to direct superior the trip.

Electrical will communicate to Control Room for latest any electrical leak .If DCS confirmed alarm detected on light and heavy leak on LVSG.

Elecrical should open the breaker contact ofthe known equipment or the source of the electrical leak. work will be accomplished in safely manner.

Open/ de-energized first all feeders:Finger Point and Call " YOSHI"MCC1, MCC2, MCC3, MCC4, MCC5, INV-1, INV-2, INV-3, INV-4, QUANTITATIVE FEEDER INVERTER, 220 DP.Also Confirm positive incoming Voltage received from MVSG.

Make Inspection: IF CLEARFinger Point and Call " YOSHI"Announce to control room:Reset Earth leak Relay ( ELR )

WORK INSTRUCTION

MANUAL

SECTION TITLE : General Procedures

1. Work Instruction Manual : LOW VOLTAGE SWITCHGEAR (LVSG ) TRIPPED OFF

2. Objective: Maintenance Procedure if VSLC Electrical Room LVSG will experience trip.

PersonResponsible

Any Electrical Personnel

Electrical Foreman on duty

Any Electrical Personnel

Any Electrical Personnel

Any Electrical Personnel

CONFIRM AT ELECTRICAL ROOM THE TRIP INDICATION LAMP AT LVSG

KNOW THE LATEST HISTORY OR ALARM LOGS AT THE CONTROL ROOM

DUE TO KNOWN REASON OF THE TRIPPEDOFF

DUE TO UNKNOWN REASON OF THE TRIPPED OFF.

RESET EARTH LEAK RELAY ( ELR )

MANUAL TITLE: EFFECTIVITY DATE:DOCUMENT CODE:

January 28,2015

REVISION NO. 0 PAGE 1 of 2

WORK INSTRUCTION

MANUAL

Process Flow Specific Activity Picture

Make InspectionInspect Status: If CLEARFinger Point and Call " YOSHI"Announce to control room:Reset Air Circuit Breaker ( ACB )

Make Inspection,Confirm the Status: IF CLEARFinger Point and Call " YOSHI"Announce to control room:Energized " ON " the ACB: Pull the handle and switch to " ON " Position

Make Inspection, Confirm the stutus: IF CLEARFinger Point and Call " YOSHI"Announce to control room:Energize feeder one at a time to confirmwhich feeder have electrical leak. make sure also to make the area free fromobstruction of men and tools. Use Proper PPE

If leaked feeder already determined isolateinfected one and energized clean FEEDER.

Electrical will announce to control room

Electrical Foremanthat all FEEDER back to normal CLOSE position.

Electrical will make invistigation and make

Electrical Foremanincident report of what happened.

PersonResponsible

Any Electrical Personnel

Any Electrical Personnel

Any Electrical Personnel

BACK TO NORMAL OPERATION

ENERGIZED FEEDERS ONE BY ONE.

RESET AIR CIRCUIT BREAKER

ENERGIZE THE AIR CIRCUIT BREAKER

MAKE INVISTIGATION &

REPORT

MANUAL TITLE: EFFECTIVITY DATE:DOCUMENT CODE:

January 28,2015

REVISION NO. 0 PAGE 1 of 2

WORK INSTRUCTION

MANUAL

MANUAL TITLE: EFFECTIVITY DATE:DOCUMENT CODE:

January 28,2015

REVISION NO. PAGE 1 of 2

PREPARED : CHECKED : APPROVED:

ENGR. RENDLE RAI S. CUA ARIEL C. SECRETARIA YOSHIO SUZUKIElectrical Supervisor Maintenance Manager Plant Manager

Reset the 4160V Switchgear in proper and safety procedure.

3. Instruction Detail

Process Flow Specific Activity Picture

Confirm the trip yellow indication.

Electrical personnel will go toElectrical Room 1st floor to confirm MVSG4160V switchgear monitor incoming voltage received from THPAL that zero.

Announce to Control room the situation that we Experience blackout ; Zero volt receivefrom THPAL SUB-STATION

IN THE MONITOR

To Proceed, Determine level of situation

Announce to control room for preparing to reset MVSG.

Reset MVSG Switchgear. At display monitor. Press RST

WORK INSTRUCTION

MANUAL

SECTION TITLE : General Procedures

1. Work Instruction Manual : UNEXPECTED PLANT BLACKOUT

2. Objective: Maintenance section procedure if unexpected plant wide blackout happen.

PersonResponsible

Any Electrical Personnel

Any Electrical Personnel

CONFIRM WHAT ERROR DISPLAY

Any Electrical Personnel

CONFIRM AT ELECTRICAL ROOM THE TRIP INDICATION LAMP AT 4160V SWITCHGEAR

CONDITION NO. 1 IF THPAL POWER

RECOVER IMMEDIATELY.TIME RECOVERY < 10

MIN.

ERROR CONFIRM

DETERMINE CONDITION

MANUAL TITLE: EFFECTIVITY DATE:DOCUMENT CODE:

January 28,2015

REVISION NO. PAGE 1 of 2

WORK INSTRUCTION

MANUAL

Process Flow Specific Activity Picture

Announce to control room:Finger Point and Call " YOSHI"OPEN FEEDER BREAKER FROM:MCC1-5, INV. 1-4 FEEDERS.

Follow procedure on the panel door posting.This also apply during april & sept. shutdown

Announce to control room: Finger Point and Call " YOSHI"Energize feeder one at a time to confirmwhich feeder have electrical leak. Make sure also to make the area free fromobstruction of men and tools. Use Proper PPEIf leaked feeder already determined isolateinfected one and energized clean feeder.

Electrical ForemanElectrical will announce to control roomthat all ELCB back to normal position.Ready for Normal Operation

Electrical ForemanElectrical will make invistigation and make incident report of what happened.

PersonResponsible

Any Electrical Personnel

Any Electrical Personnel

Any Electrical Personnel

BACK TO NORMAL OPERATION

ENERGIZED FEEDER ONE BY ONE.

CONDITION NO. 2IF THPAL POWER

SOURCE RECOVER > 10 MIN.

CONDITION NO. 3SCHEDULE BLACKOUT

MAKE INVISTIGATION & REPORT

MANUAL TITLE: EFFECTIVITY DATE:DOCUMENT CODE:

January 28,2015

REVISION NO. PAGE 1 of 2

WORK INSTRUCTION

MANUAL

End