ELECTRICAL RISER & DISTRIBUTION. Co-X/FMD/SOP06

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Bathsheba Carpenter
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1 CONVENTION & EXHIBITION (PUTRAJAYA) SDN. BHD. Co-X/FMD/SOP06 Revision No.: 01 Effective Date: 15 th December 2017 PREPARED BY REVIEWED BY APPROVED BY Name: Name: Name: Designation: Designation: Designation:

2 REFERENCE NO. Co-X/FMD/SOP06 PAGE NO. Page 2 of 9 REVISION HISTORY Rev. No DCN No. Description of Changes Effective Date Initial Release 15/12/17

3 REFERENCE NO. Co-X/FMD/SOP06 PAGE NO. Page 3 of OBJECTIVE The objective of this procedure is to provide guidelines on preventive maintenance for electrical riser and distribution. 2.0 SCOPE This procedure shall be applicable for all electrical riser distribution inside Putrajaya International Convention Centre (PICC) building. 3.0 DEFINITION 3.1 Co-X : Convention & Exhibition (Putrajaya) Sdn. Bhd. 3.2 PICC : Putrajaya International Convention Centre 3.3 SSB : Sub Switch Board 3.4 DB : Distribution Board 3.5 DC : Document Controller 3.6 MCCB : Molded Case Circuit Breaker 3.7 MCB : Miniature Circuit Breaker 3.8 ELCB : Earth-leakage circuit breaker 3.9 ELR : Earth-Leakage Relay 3.10 OCR : Overcurrent Relay 3.11 ST : Suruhanjaya Tenaga 4.0 RESPONSIBILITY 4.1 The DC shall oversee all documents and records are properly managed at all times. 4.2 Chargeman is responsible to prepare and arrange all electrical riser preventive maintenance frequency, schedule and verify technician work. 4.3 Technician is responsible to perform the preventive maintenance as per schedule or task for all electrical riser inside PICC. 5.0 REFERENCE 5.1 Safety Work Procedure Guide For Electrical Work by ST 5.2 Co-X/FMD/SOP01 Preventive Maintenance & Equipment Management 5.3 Co-X/FMD/SOP05 Main Electrical System

REFERENCE NO. Co-X/FMD/SOP06 PAGE NO. Page 4 of 9 6.0 PROCEDURE 6.

cut-off electrical supply (415V) at every level from LV system (refer

4 REFERENCE NO. Co-X/FMD/SOP06 PAGE NO. Page 4 of PROCEDURE 6.1 Electrical Riser In General Tap-off Unit function to receive / cut-off electrical supply (415V) at every level from LV system (refer Co-X/FMD/SOP05) before distributed to SSB. Riser Room Riser room Tap-off unit

REFERENCE NO. Co-X/FMD/SOP06 PAGE NO. Page 5 of 9 6.1.2 SSB then distribute the power to DB with safety protection equipment as below: 6.1.2.1 Earth-Leakage Relay (ELR) 6.1.2.2 Overcurrent Relay (OCR) 6.

5 REFERENCE NO. Co-X/FMD/SOP06 PAGE NO. Page 5 of SSB then distribute the power to DB with safety protection equipment as below: Earth-Leakage Relay (ELR) Overcurrent Relay (OCR) Molded Case Circuit Breaker (MCCB) Phase indicator (Red Yellow Blue) Molded Case Circuit Breaker (MCCB) 100A Molded Case Circuit Breaker (MCCB) 63A Molded Case Circuit Breaker (MCCB) 32A Sub Switch Board (SSB) Earthleakage relay Phase indicator

REFERENCE NO. Co-X/FMD/SOP06 PAGE NO. Page 6 of 9 MCCB for incoming supply MCCB for distribution supply 6.1.

1.3.2 Earth Leakage Circuit Breaker (ELCB) 6.1.3.3 Miniature Circuit Breaker (MCB) 6.1.3.4 Overcurrent fuse 6.1.3.5 Miniature Circuit Breaker (MCB) 10A 6.

6 REFERENCE NO. Co-X/FMD/SOP06 PAGE NO. Page 6 of 9 MCCB for incoming supply MCCB for distribution supply DB then distribute electrical supply to end user / building electrical load Molded Case Circuit Breaker (MCCB) Earth Leakage Circuit Breaker (ELCB) Miniature Circuit Breaker (MCB) Overcurrent fuse Miniature Circuit Breaker (MCB) 10A Miniature Circuit Breaker (MCB) 20A Miniature Circuit Breaker (MCB) 32A Distribution Board (DB)

7 REFERENCE NO. Co-X/FMD/SOP06 PAGE NO. Page 7 of 9 Overcurrent fuse ELCB ELCB bypass switch MCCB for incoming supply MCB for distribution supply 6.2 Plan Preventive Maintenance PPM for Distribution System frequency as per Plan Preventive Maintenance (PPM) Schedule (Co-X/FMD/SOP01-R03) Safety precautions / general guidelines prior to carry out PPM: Please ensure the safety of all technicians by following safety rules, regulations and PPE (helmet, safety shoes, rubber glove, safety glasses etc.) The PPM shall be carried out by competent person level PW4 and above Display of safety signage during maintenance activities Physical check at SSB / DB panel by visual internally and externally. Ensure panel board has no defect and in good condition Physical check of any burn marks at all terminals inside the panel and re-tightening all cables termination point if needed Checking point to point for any bad contact at respective panel by using test equipment (e.g. Multi-meter) Perform functionality tripping test to ensure all circuits still intact for: MCCB RCD / ELCB MCB Conduct housekeeping of electrical riser room panels and the surrounding.

8 REFERENCE NO. Co-X/FMD/SOP06 PAGE NO. Page 8 of All findings will be recorded on Electrical Riser Checklist (Co-X/FMD/SOP01-R08(g)) Any non-compliance finding during PPM then shall be forwarded to Unplanned Maintenance Procedure (Co-X/FMD/SOP01). 7.0 RECORDS 7.1 Co-X/FMD/SOP01-R03 Plan Preventive Maintenance (PPM) Schedule 7.2 Co-X/FMD/SOP01-R08(g) Electrical Riser Checklist 8.0 APPENDIX / ATTACHMENT 8.1 Process Flow

9 REFERENCE NO. Co-X/FMD/SOP06 PAGE NO. Page 9 of 9 PROCESS FLOW RESPONSIBILITY OUTLINE ACTION 1 Main Electrical System - Co-X/FMD/SOP05 - Technician with minimum competency level PW4 2 Tap-Off Unit - Receive / cut-off electrical supply at every level - Technician with minimum competency level PW4 3 SSB - Distribute electrical supply to DB c/w safety protection - Technician with minimum competency level PW1 (monitored by PW4) 4 DB - Distribute electrical supply to end-load / end user - End user 5 Load / end user - Electrical supply user

Licensed Electricians Practical Assessment (LEP)

Licensed Electricians Practical Assessment (LEP) Surname: Given Names: Date: Time: Location: Assessment Time (includes reading and preparation time): At the end of this time you will be asked to stop.