AfDB Field s office in Abuja Nigeria

Transcription

1 AfDB Field s office in Abuja Nigeria Lot 3: Vol 5 Commissioning Plan Prepared by: Apave Liban s.a.r.l. For : Aim Consultants Ltd.

2 Project ref : Report n : Date : 16/04/2013 Page 2/12 Table of contents Introduction 3 I Overview of the commissioning process 4 II Systems and assemblies included in the CA s scope of 4 work III Commissioning team and its responsibilities 4 IV Description of management, communication and 7 reporting of commissioning process V Commissioning Plan 8 VI List of expected work products 9 VII Testing equipment 10 VIII Commissioning process milestones and schedules 10 IX Commissioning check lists and testing procedures 11 Check lists annexes: Annex 1: T&C for Electrical Installation Annex 2: T&C for Generator Installation Annex 3: T&C for Split Unit System Annex 4: T&C for AHUs and VAVs Annex 5: T&C for Chillers and Accessories Annex 6: T&C for Cooling Pumps Annex 7: T&C for Domestic Water System Annex 8: T&C for FCU Annex 9: T&C for Fans Annex 10: T&C for BMS Annex 11: T&C for Metering Systems Annex 12: T&C for VRVs Annex 13: T&C for PV System Annex 14: T&C for Solar Heating System

3 Project ref : Report n : Date : 16/04/2013 Page 3/12 Introduction The commissioning plan is the reference document that identifies the strategies, aspects and responsibilities within the commissioning process for each phase of the project for all project team members. This document outlines the overall process, schedule, organization, responsibilities and documentation requirements of the commissioning process for all commissioning team members. The commissioning plan is developed at the start of the commissioning process, and is updated during the course of the project to reflect any changes in planning, schedule or other aspect. The required commissioning plan components as per LEED reference guide for green building design and construction are as follows: I II III IV V VI VII Required commissioning plan components: Brief overview of the commissioning process. List of all systems and assemblies included in commissioning authority s scope of work. Identification of commissioning team and its responsibilities. Description of management, communication and reporting of commissioning process. Overview of commissioning process activities for pre design, design, construction, occupancy and post occupancy phases. List of expected work products. List of commissioning process milestones.

4 Project ref : Report n : Date : 16/04/2013 Page 4/12 I Overview of the commissioning process Commissioning intent is to verify that the project s energy related systems are installed, calibrated and perform according to the owner s project requirements, basis of design and construction documents and to provide the owner with a high level of assurance that the mechanical and electrical systems have been installed in the prescribed manner, and operate within the capabilities of the documented design and specified equipment capacities. In order to comply with the LEED requirements, the commissioning plan will be divided into two levels called Fundamental Commissioning of building energy systems which is prerequisite for the system and Enhanced Commissioning with its optional credits. The prerequisite intent is to verify that the project s energy related systems are installed, calibrated and perform according to the owner s project requirements, basis of design and construction documents. The Commissioning authority will verify the installation and performance of the systems to be commissioned, and will complete a summary commissioning report as part of the Fundamental commissioning process. The commissioning authority will document all commissioning review process, submittals, system manual, verify O&M training and review building operation after 10 month of final acceptance. II Systems and assemblies included in commissioning authority s scope of work The scope of services for the commissioning authority is based on the owner s project requirements. Thus, as requested by the owner, the mission will cover the following base building systems: Ventilation systems(supply air, Return air, Exhaust air) HVAC and associated control systems Chilled water VRV system Domestic water heating Water distribution systems Domestic water treatment Electrical power generation and distribution systems Building Management System Sub meters and central electronic monitoring system Lighting and lighting controls Renewable energy systems III Commissioning team and its responsibilities Commissioning team as defined in ASHRAE s commissioning guide; it s Those people responsible for working together in carrying out the commissioning process.

5 Project ref : Report n : Date : 16/04/2013 Page 5/12 Commissioning, at every stage of a project, is a collaborative effort between all parties to the construction project; it s a team effort and requires communication, coordination and cooperation among all parties involved with the project. The commissioning authority is the leader of the team. By clearly establishing the Commissioning Team and individual responsibilities, the process execution becomes easier, more effective and more accountable. Below are the commissioning team members, along with their individual responsibilities in the commissioning process during project phases. A. Owner (The African development Bank) 1 Include a statement regarding commissioning responsibilities in request for design services. 2 Develop and commit to the Ownerʹs Program for the facility and its use. 3 Assign operations and maintenance personnel and schedule them to participate in the various meetings, training sessions, and observations/inspections. 4 Review and approve any changes made to design intent. 5 Review and approve the construction documents. 6 Provide qualified personnel for videotaping and editing of training sessions. 7 Videotape construction progress. 8 Review and comment on the commissioning authorityʹs verification report. 9 Review and accept the commissioning authorityʹs commissioning report. B. Commissioning Authority (Apave) 1 Organize and lead the commissioning team. 2 Prepare a program phase Commissioning Plan that describes in general the extent of the commissioning process to accomplish the Ownerʹs Program and the initial design intent. 3 Develop the design phase Commissioning Plan, which details the extent and activities of the commissioning process including commissioning team organization, schedule, training, and documentation requirements and all related testing, verification, and quality control procedures. 4 Execute the commissioning process through attending meetings, tests, demonstrations, training events, and performance verifications. 5 Review the plans and specifications with respect to their completeness in all areas relating to commissioned systems. This includes ensuring that the design phase Commissioning Plan has been followed and that there are adequate devices included in the design to ensure the ability to properly test, verify, and adjust the systems. Any items required but not shown shall be brought to the attention of the Owner. 6 Receive and review the operations and maintenance (O&M) manuals as submitted by the contractor. Ensure that they follow the specified outline and format. Insert systems description as provided by the design professional in the Systems Manual. 7 Witness equipment, subsystem, and system start up and testing. Ensure the results are documented, including a summary of deficiencies, and incorporated in the O&M manuals. 8 Supervise the commissioning team members in the functional performance tests. The test data will be part of the commissioning report. 9 Ensure that the O&M manuals and all other as built records have been updated to include all

6 Project ref : Report n : Date : 16/04/2013 Page 6/12 modifications made during the construction phase. 10 Prepare the final commissioning report and the systems manual. 11 Review operation after 10 month of completion. C. Design / Technical Control Consultants 1 Provide system design parameters and revisions to the initial design intent document as necessary, obtaining approval of the owner. 2 Prepare contract documents, including the commissioning specification and description of the commissioned systems. 3 Attend construction phase coordination meeting. 4 Specify and verify adequate maintenance accessibility for each piece of equipment in shop drawings and actual installation. Periodic inspections are part of the design professionalʹs construction administration duties. 5 Develop an overview of system design and operation concepts for the Systems Manual. 6 Review and accept as built records as required by contract documents and turn them over to the commissioning authority. D. Contractor/Sub contractor/supplier 1 Include costs for commissioning requirements in the contract price. 2 Include requirements for submittal data, O&M data and O&M training in each purchase order or subcontract written. 3 Ensure cooperation and participation of specialty subcontractors and controls contractors. 4 Ensure coordination, installation, and operation of interfaces between commissioning team. 5 Ensure participation of major equipment manufacturers in appropriate training and testing activities. 6 Attend construction phase coordination meeting scheduled by the commissioning authority. 7 Prepare necessary preliminary schedule for commissioned system orientation and inspections, O&M manual submission, training sessions, equipment and systems testing, for use by the commissioning authority. Update schedule as appropriate throughout the construction period. 8 Attend initial training sessions, and conduct system orientation and inspection at the equipment placement completion stage. Update drawings to record condition to date, and review with the commissioning authority. 9 Gather O&M data on all equipment and assemble in binders as required by the commissioning specification. Submit to commissioning authority prior to the completion of construction. 10 Notify the commissioning authority when equipment and system start up and testing can be witnessed. 11 Schedule equipment suppliers and contractors to participate in the O&M training sessions. 12 Conduct a system orientation and inspection with hands on training. Update drawings to record condition to date, and review with the commissioning authority prior to the orientation. 13 Provide written notification to the construction manager and commissioning authority that

7 Project ref : Report n : Date : 16/04/2013 Page 7/12 the following work has been completed in accordance with the contract documents and that the equipment, systems, and subsystems are functioning as required. 14 Demonstrate the operation of each piece of equipment to the commissioning authority. Schedule subcontractors as may apply to demonstrate the operation of the equipment and systems. 15 Provide services of an engineer to participate in verification tests. 16 Turn over a set of as built records to the commissioning authority. (Hard and soft copies) 17 Provide filled checklist data sheets to document verification tests for the commissioning authority. 18 Submit detailed verification test procedures and data sheets for review by the design team. 19 Submit detailed list of test instrumentation with appropriate calibration records to be utilized for verification. Record data as necessary. 20 Submit verification test data to the design team and the commissioning authority for review. 21 Conduct tests and verifications including opposite season tests, as required. 22 Retest if performance deficiencies are found and corrected and additional testing is requested. 23 Repeat all required testing and verification procedures after 10 months of client s occupancy. IV Description of management, communication and reporting of commissioning process Whole Building Commissioning is a process that relies upon high levels of communications and collaboration between all parties to the construction process. By its nature, the levels of communication and cooperation between the Commissioning Authority and all other parties to the construction process (Design team, Engineers, Subcontractors, Vendors, third party testing agencies, etc.) is essential to the success of the Commissioning effort. In the absence of these relationships, cooperation and support created by this communication, the Commissioning Process will likely fail to achieve its ends. With this fundamental conflict in mind, this section has been developed to recognize that, in the execution of the Commissioning Process, the Commissioning Authority must develop effective methods to communicate with every member of the construction team involved in delivering commissioned systems while simultaneously respecting the exclusive contract authority of the Contracting Officer and his/her Designated Representative. The organizational process chart below shows lines of contractual authority in this project, yet communications are encouraged between all commissioning team members, within the limit of their contracts.

8 Project ref : Report n : Date : 16/04/2013 Page 8/12 Client AfDB Technical Control Consultants AIM Project Manager Design Consultants LEED Consultant SEEDS Main contractor To be defined Commissioning authority Apave Subcontractors / Suppliers To be defined V Commissioning Plan The commissioning plan is implemented during the construction phase. Direct interaction between the construction team and the commissioning authority and communication with the design team represents the cornerstone of successful commissioning. The commissioning authority provides leadership by communicating goals for the commissioning process, including identification of roles and responsibilities of team members, and clearly defining and documenting pass/fail criteria. Each commissioning team member shares a responsibility to support the commissioning process and achieve a quality installation. The sequence and timing of commissioning activities must be incorporated into the overall project schedule. The commissioning authority identifies the required commissioning activities. Coordination requires input from the owner, designer, and contractors. Cooperation among the parties facilitates integration of commissioning into the total construction program. At this stage, the commissioning authority obtains and reviews submittal data, and consults with the designers and contractors regarding conformance with the design intent. The designer provides final approval of all submittals. The commissioning authority should work with the general contractor to schedule commissioning meetings in conjunction with regular progress meetings, because many participants will attend both. The commissioning authority keeps meeting minutes. All commissioning team members are responsible for attending commissioning meetings and for completing assigned action items by the agreed dates. Cooperation by all parties contributes to successful commissioning. The contractor is responsible for preparing the O&M documentation and training program in accordance with specification requirements.

9 Project ref : Report n : Date : 16/04/2013 Page 9/12 The O&M training program should include: Design intent. System limitations. Start up and shut down procedures. Modes of control and operation sequences. Detailed review of the information and organization of the O&M manual. Complete listing of contractors and manufacturer contact information. Complete listing of spare parts. Detailed instructions on the control system. Routine preventative maintenance procedures as specified by the designer or recommended by the manufacturer. Provisions for safety shutdowns, emergency conditions, and interfaces with building management systems (BMS) and life safety systems (such as fire protection). Video tapes of the training sessions to allow future use. At the last phase of this stage, the commissioning authority will be responsible of preparing a summary commissioning report. This report uses the final commissioning plan as its template. The report includes all system verification and start up checklists, and all functional performance test checklists, completed with all test observations, problems encountered, corrective actions taken, and re test results dated and signed by those carrying out and witnessing the tests. Where the checklists make reference to other test reports, copies of those reports must be appended. The final commissioning report should contain an executive summary addressing design intent conformance for all commissioned equipment and systems. The report should include references to all relevant commissioned system documentation, and should be organized and tabulated to facilitate access to specific information. The commissioning authority will make a site review within 10 months after substantial completion, along with the contractor and all concerned subcontractors. Functional tests and verification will be repeated in order to get the required information. Commissioning authority will then have to make another report concerning this site review. VI List of expected work products Commissioning intent, as mentioned earlier in this report is to verify that the project s energy related systems are installed, calibrated and perform according to the owner s project requirements, basis of design and construction documents and to provide the owner with a high level of assurance that the mechanical and electrical systems have been installed in the prescribed manner, and operate within the capabilities of the documented design and specified equipment capacities. Therefore our mission will be to provide the owner, in our final commissioning report and our site review within 10 months of occupancy, with an objective point of view of the actual state of MEP equipment.

10 Project ref : Report n : Date : 16/04/2013 Page 10/12 VII Testing equipment It is be noted that all test equipment required for performing the specified tests shall be provided by contractors. Any proprietary vendor specific test equipment shall be provided by that vendor or manufacturer. Any portable or hand held setup / calibration devices required to initialize any control system shall be made available by the control vendor (at no cost) to the commissioning authority. The instrumentation shall meet the following requirements: Be of sufficient quality and accuracy to measure system performance within the tolerances required. Be calibrated with calibration tags permanently affixed to the instrument. All items needed to undertake testing and verification as described in the attached annexes should be provided by the contractor. VIII Commissioning process milestones, schedules Commissioning milestones and schedules cannot be determined exactly for the time being, but will be integrated to this report during future revisions once we receive the detailed construction planning. The startup and testing of systems may proceed prior to final completion of systems. However, the commissioning authority shall not perform checkout services that are the primary responsibility of the contractor vendor in advance of their testing and checkout, whom in return are responsible to inform the commissioning team once their systems are ready to be verified and tested. Problems observed will be addressed immediately, responsible parties will be notified. Contractor schedules and scheduling is the responsibility of the construction manager. The commissioning authority shall provide commissioning scheduling information to the construction manager for review and planning activities. The commissioning process does not relieve any contractors from their obligations to complete all portions of work in a satisfactory manner. Throughout project construction, the following table including all systems to be commissioned will be updated.

11 Project ref : Report n : Date : 16/04/2013 Page 11/12 System: Supply air Return air Exhaust air Chilled water Hot water HVAC and control Systems to be commissioned Equipment startup Pre functional checklists Functional testing Sample size Target date: Y/N Y/N Y/N % N/A Y/N Y/N Y/N % N/A Y/N Y/N Y/N % N/A Y/N Y/N Y/N % N/A Y/N Y/N Y/N % N/A Y/N Y/N Y/N % N/A VRV Y/N Y/N Y/N % N/A Domestic water heating &distribution Domestic water treatment Y/N Y/N Y/N % N/A Y/N Y/N Y/N % N/A Electric power generation and distribution Y/N Y/N Y/N % N/A BMS Y/N Y/N Y/N % N/A Sub metering & electronic monitoring Y/N Y/N Y/N % N/A Lighting and related controls Y/N Y/N Y/N % N/A IX Commissioning check lists and testing procedures Commissioning check lists and systems testing and verification procedures shall be filled by the resident consultant engineer and the concerned subcontractor. The commissioning authority will direct and witness some verification operating tests and checks. The testing contractor s technician will inspect and verify the position of each device and interlock that is identified on the checklist. Each item shall be signed off as acceptable or failed. This test will be repeated for each operating cycle that applies to the system being tested. Operating checks shall include all safety cutouts, alarms, and interlocks with smoke control and life safety systems during all modes of operation of the system. If, during a test, an operating deficiency is observed, appropriate comments shall be added to the checklist data sheet. The Interface of the monitoring and control system shall be verified. The proper response of monitoring and control system controllers and sensors shall be verified.

12 Project ref : Report n : Date : 16/04/2013 Page 12/12 Final verification: APAVE will direct and witness the field verification of the final testing report. APAVE will select at random percentage of the report data for verification. The contractor shall be given sufficient advance notice of the date of field verification. However, he shall not be informed in advance of the data points to be verified. The test engineer must use the same instruments (by model and serial number) that were used when the original data were determined. Failure of an item is defined as the following : For all readings other than sound, a deviation of more than 10%. For sound pressure readings, a deviation of 3 decibels. A failure of more than 10% of the selected items shall result in the failure of acceptance of the final testing report. All these deviations are to be followed, unless otherwise referred to or specified. Failure of the final testing and balancing report shall require contractor to complete the following work. Any system failing the verification procedure must be rechecked and corrected. New total system testing and verification reports must be provided. Field verification of the new testing and balancing report must be performed. If deficiencies are identified during verification, the construction manager will be notified and action taken to remedy the deficiency. Once verification is completed, the commissioning authority will provide a verification report to the owner. Check lists and testing procedures are found in the annexes of this report.

13 Testing & Commissioning Procedure Electrical Installation Commissioning Plan April / 32

14 Table of Contents 1 Introduction: Objective of the T & C: Scope of the T & C Works: Preliminary Steps for Testing and Commissioning: Tests & Inspections during Construction: Functional Performance Tests: Documentation and Deliverables: Testing and Commissioning (T & C) Procedure: Tests and Inspections during Construction Inspection and Test for Low Voltage Installations Inspection before Test Sequence of Tests Conductor Continuity Earth Electrode Resistance Earth Fault Loop Resistance Functional Test of System/Equipment Circuitry Check Lighting Installation Digital Multifunction Power Meter Equipment and Appliances Assessment of Any Characteristics of Equipment Likely to have Harmful Effects... 9 Appendix A Part1. Items Inspected and Tested Statutory Inspection and Test for Low Voltage (L.V.) Installation Functional Test of System /Equipment Part 2: Test Record attached to the Test Certificate Test for Low Voltage (L.V) Installation Functional Test of System /Equipment Testing Equipment Commissioning Plan April / 32

15 1 Introduction: The procedures stated in this document cover the activities in preliminary tests and inspections, functional performance tests and the commissioning of newly completed electrical installations. The Contractor shall carry out the T & C works for LEED as detailed in this document. 2 Objective of the T & C: The objectives of the T & C works are: To verify proper functioning of the equipment/system after installation. To verify that the performance of the installed equipment/systems meet with the specified design intent through a series of tests and adjustments. To capture and record performance data of the whole installation as the baseline for future operation and maintenance. 3 Scope of the T & C Works: 3.1 Preliminary Steps for Testing and Commissioning: Before carrying out T&C, the Contractor shall take the following steps: a. Review approved shop drawings and equipment schedules; b. Check manufacturer s operating instructions and statutory requirements; c. Physically inspect the installation and equipment to determine variations from designs and/or specifications. d. Check individual components, e.g. key switches, control equipment, circuit breaker status, etc. for proper position and settings for completeness of installation. e. Check inclusion of manufacturer s typical equipment testing data or factors before T&C of particular equipment. Commissioning Plan April / 32

16 3.2 Tests & Inspections during Construction: The purpose of these tests is to ensure that all components and systems are in a satisfactory and safe condition before start up. Preliminary adjustment and setting of equipment at this stage also be carried out at the same time to pave way for the functional performance tests. Before carrying out any test, The Contractor shall ensure that the installation complies with all relevant statutory requirements and regulations. The T & C works shall also comply with all site safety regulatory requirements including but not limited to: (i) (ii) IEC Electrical Installations of Buildings Electricity supply rules of the relevant power supply companies Or other approved codes and standards. 3.3 Functional Performance Tests: The purpose of functional performance tests is to demonstrate that the equipment/installation can meet the functional and performance requirements as specified in the General/Particular specifications. Functional performance test should proceed from the testing of individual components to the testing of different systems in the installation. Any performance deficiencies revealed during the functional performance tests must be evaluated to determine the cause and whether they are part of the contractual obligations. After completion of the necessary corrective measures, the Contractor shall repeat the tests. If any test cannot be completed because of circumstances that are beyond the control of the Contractor, it shall be properly documented. The contractor shall resume his testing work immediately upon the attainment of a suitable testing environment. 3.4 Documentation and Deliverables: All inspection and T & C results shall be recorded in the data record forms. A functional performance test report covering all measured data, data sheets, and a comprehensive summary describing the operation of the system at the time of the functional performance tests shall be prepared and submitted. Deviations in performance from the General/Particular Specifications or the design intent should be recorded, with a description and analysis included. Commissioning Plan April / 32

17 4 Testing and Commissioning (T & C) Procedure: 4.1 Tests and Inspections during Construction For those tests to be carried out on different systems of the installation during construction to ensure their suitability for operating at the design conditions, certificates of such tests shall be issued together with certificates of any work tests. The tests and inspection shall include, but not limited to, the followings: (a) Visual inspection; (b) Earth electrode resistance; and (c) Continuity of protective conductor. (d) Voltage measurements. (e) Lux measurements. Details of these tests shall be in accordance with relevant sections of this procedure. 4.2 Inspection and Test for Low Voltage Installations Inspection before Test A visual inspection shall be made to verify that the electrical installation /equipment as installed is correctly selected and erected and that there is no apparent damage. The visual inspection shall include a check on the following items, where appropriate: a. Adequacy of working space, access, and maintenance facilities; b. Connections of conductors; c. Identification of conductors; d. Adequacy of the sizes of conductor in relation to current carrying capacity and voltage drop; e. Correct connections of all equipment with special attention to socket outlets, lamp holders, isolators, switches, and protective conductors, f. Presence of appropriate devices for isolation and switching; g. Presence of diagrams, instructions and other similar information; Sequence of Tests The following items, where relevant, are to be tested preferably in the sequence indicated below: a. Continuity of protective conductors, including main and supplementary equipotential bonding, b. Earth electrode resistance, Commissioning Plan April / 32

18 c. Earth fault loop impedance, In the event of any test indicating failure to comply, that test and those preceding, the results of which may have been influenced by the fault indicated, shall be repeated after the fault has been rectified Conductor Continuity Continuity of Protective Conductors Every protective conductor, including all conductors and any extraneous conductive parts used for equipotential bonding should be tested for continuity. The test should be made by connecting together the neutral and protective conductors at the mains position and checking between earth and neutral at every outlet by a continuity tester, which should show a reading near zero Earth Electrode Resistance A proper earth electrode resistance tester should be used to measure earth electrode resistance. An alternating current at 50 Hz of a steady value is passed between the earth electrode T and an auxiliary earth electrode T1 placed at a separation distance recommended by the manufacturer of the tester but in any case should not be less than 20 metres away. A second auxiliary earth electrode T2, which may be a metal spike driven into the ground, is then inserted half way between T and T1, and the voltage drop between T and T2, divided by the current flowing between T and T1, gives a measured earth electrode resistance of earth electrode T. For an electrical installation having four or more earth electrodes which are installed more or less in line, following a general direction not exceeding 15 deviation and with separation between adjacent electrodes not less than the recommended distance by the manufacturer of the tester but in any case not less than 20 meters, these electrodes can be used in turn as the auxiliary electrodes for the purpose of measuring the earth electrode resistances. The following alternative method for measuring the earth electrode resistance may be used if the electricity supply is connected. A loop impedance tester should be connected between the phase conductor at the origin of the installation and the earth electrode with the test link open, and a test performed. This impedance reading could be treated as the electrode resistance Earth Fault Loop Resistance The earth fault loop impedance should be measured by a phase earth loop tester with a scale calibrated in ohms. Commissioning Plan April / 32

19 The earth fault loop impedance should not exceed the requirements of applicable code. Before the test begins, it is essential to establish, by inspection, that the earthing conductor and all relevant earth connections are in place, and that the bonding connection to electricity supplier s earthing facilities is disconnected. Measures should be taken, during the impedance tests especially when the earth leakage protective devices are effectively removed for the duration of the tests, to ensure that the installation is not being used other than by person(s) carrying out the tests. 4.4 Functional Test of System/Equipment Circuitry Check All circuits shall be verified through switching operation to ensure that the circuits are installed in accordance with the designated circuit. The tests shall include but not be limited to the following: a. On/off switching of the lighting circuit to ensure that the lighting circuit is installed corresponding to the lighting switch, protective device and labeling; b. Switching of the general power circuit to ensure that the circuit corresponds to the protective device such as RCD, RCBO and MCB, and that the protective device performs in accordance with the designated duty; c. Switching of the main switch / isolator to ensure the corresponding circuit is properly controlled by the main switch / isolator; d. Switching of all sub main and main distribution circuits, e.g. bus ducts, cable feeders, underground cables, etc. to ensure the correct isolation of the connected circuit; e. Switching of all changeover switches to ensure the changing over sequence corresponds to the design criteria; f. Ensuring all the protective devices perform properly against the designated circuit Lighting Installation Lighting installation shall be tested in terms of its light quality and control as following: a. Before carrying out the lighting measurement and test, all luminaries shall be checked against the specified color temperature, beaming angle of spot lamp and aiming angle for exterior floodlights. b. The aiming angle of external lighting or planter lighting shall be commissioned so as not to create glare or any obstructive light to external environment. Commissioning Plan April / 32

20 c. Before commissioning and /or setting of lighting control devices which including but not limited to timer switch, occupancy sensor, photocell and infra red sensor, the Contractor shall submit commissioning /setting proposal for approval. d. Illumination level of lighting installation for individual areas/rooms shall be measured to verify the light output. The Contractor shall submit the proposed locations and height levels for carrying out the measurement of illuminance level for approval before commencement of measurement. Presentation of the measurement result shall be in the form of marked up layout plan for the particular area. e. Base on the measured illuminance results for individual areas/rooms, the lighting uniformity of the respective areas /rooms shall be evaluated in terms of minimum to average illuminance ratio. f. All grouping of luminaries shall be tested by hand operation of the corresponding switches or timers. g. For lighting installation with interface connection to building management system (BMS), or central control and monitoring system (CCMS) or similar central computer control system, the Contractor shall co ordinate with other contractors responsible for such computer control system, if required, to demonstrate proper control function of the lighting installation Digital Multifunction Power Meter The digital multifunction power meter shall be tested to verify the measurement, recording and interfacing functions as required in the General Specification. Prior to the test for every digital multifunction power meter, the Contractor shall provide manufacturer s calibration certificate for each meter for checking on the accuracy. The Contractor shall provide testing kit to verify the reading accuracy of the digital multifunction power meter. For installation of digital multifunction power meter with connection to building management system (BMS), or central control and monitoring system (CCMS) or similar central computer monitoring system, the Contractor shall co ordinate with other contractor responsible for such computer monitoring system, if required, to demonstrate proper functioning and interfacing of the meter. For installation of digital multifunction power meter without external connection to building management system or CCMS, the interface functions including digital and analogue output shall be tested by means of plugging in communication module provided by the Contractor. The replacement mechanism of the meter shall be tested. The test shall demonstrate that the replacement of the meter does not require the switching off of the respective switchgear. Commissioning Plan April / 32

21 Current transformers shorting block to prevent open circuiting the current transformers shall also be tested Equipment and Appliances Testing on electrical equipment and appliances supplied within the electrical installation, e.g. meters, fans, etc. shall be carried out in accordance with the relevant sections of other Building Services Branch Testing and Commissioning Procedures for other building services installations and manufacturer s recommended testing procedures. 4.5 Assessment of Any Characteristics of Equipment Likely to have Harmful Effects Before carrying out the T&C, the Contractor shall conduct assessment for any characteristics of equipment likely to have harmful effects upon other electrical equipment or other services, or impair the supply. Those characteristics include the following: a. Overvoltages; b. Undervoltages; c. Fluctuating loads; d. Unbalanced loads; e. Power factor; f. Starting currents; g. Harmonic currents; h. Direct current (d.c.) feedback; i. High frequency oscillations; and j. Necessity for additional connection to earth. The Contractor shall, after conduct the assessment, submit an assessment report for consideration. Commissioning Plan April / 32

22 Appendix A Commissioning Plan April / 32

23 Item tested / checked by: Contractor Item witnesses by: Part1. Items Inspected and Tested 1.1. Statutory Inspection and Test for Low Voltage (L.V.) Installation Visual Inspection Working Space and Facilities a. Adequacy working space and safe access provided for switch room and /or electrical facilities. b. Entrance /exit to switch room and/or electrical facilities are free of obstruction c. Suitable locking facilities provided for switch room and /or electrical facilities. d. Suitable lighting provision provided for switch room and /or electrical facilities. e. Suitable ventilation provision provided for switch room and /or electrical facilities. f. Suitable tools for withdrawal of fuses at fuse board provided. g. A warning notice DANGER SUBSTATION, UNAUTHORISED ENTRY PROHIBITED provided at every entrance of switch room. h. Fire barriers and other measures for protection against thermal effects are properly installed. i. Danger notices, warning notices, schematic diagrams, instructions and similar information are correctly and adequately provided. j. Warning notices for substations and switchrooms provided k. Warning notices for earthing and main bonding connections provided l. All switchgears, distribution boards and electrical equipment properly labelled. Tested / Checked by : (Name of Contractor s Representative) Witnessed by : (Name(s)) Signature: Signature Commissioning Plan April / 32

24 Switchboard, Main Switch and Circuit Breaker a. An up-to-date notice of periodic inspection and testing provided at point of supply (i.e. a switchboard, a circuit breaker or a distribution board) of the installation. b. Circuits, fuses, switches, terminals, etc. are provided with a legible and durable identification label. Item tested / checked by: Contractor Item witnesses by: c. No visible damage to impair safety. d. Work done properly recorded in logbook. e. An up-to-date schematic diagram displayed. f. All accessible live parts screened with insulating plate or earthed metal. g. All exposed conductive parts effectively earthed. h. Earthing system effectively connected. i. Warning notice displayed at main bonding connections j. All protective devices are functioned properly and correctly set. k. Suitable interlock scheme provided to prevent parallel operation of two or more sources of supply and 4-pole incoming and interconnecting circuit breakers provided for supply to be taken from more than one source and is interconnected. l. Electrically and mechanically interlocked 4-pole changeover device(s) where standby generator set(s) is installed. m. The breaking capacities of all circuit breakers / interconnection devices are able to withstand the prospective fault current. n. Protective relays have been correctly set and overcurrent protective devices suitably set for all circuits. Tested / Checked by : (Name of Contractor s Representative) Witnessed by : (Name(s)) Signature: Signature Commissioning Plan April / 32

25 Item tested / checked by: Contractor Item witnesses by: o. Protective type current transformers are used for protective relays. p. A means of isolation provided for every circuit. q. Operation of circuit breakers and main switches checked. r. Control, indication and alarm functions checked. s. No undersized conductor used between the main busbar and fuse/mcb. t. Fuses/MCB s matching the lowest rated conductor in the circuit. u. Suitable cable terminations provided. v. Cable conductors of correct phases connected. w. Single-pole devices for protection or switching connected in phase conductors only Distribution Board a. A warning notice DANGER provided on the front panel of every distribution board. b. A notice of periodic testing provided at or near the main distribution board incorporating a residual current device. c. Distribution boards securely mounted on suitable supports. d. A suitable switch provided to control each distribution board. e. Phase barriers for 3-phase distribution board provided. f. The breaking capacity of MCB is correct according to calculation g. Suitable tools for withdrawal of fuses at a fuse board provided, where necessary. h. Circuits connected to MCB or fuse in accordance with the schematic diagram. Tested / Checked by : (Name of Contractor s Representative) Witnessed by : Signature: Signature Commissioning Plan April / 32

26 Conductors, Cables and wirings Item tested / checked by: Contractor Item witnesses by: a. No visible damage to impair safety. b. All live conductors and their methods of insulation, in relation to design currents of circuits and to the operating currents of the protective devices, are properly selected and erected. c. All cables, flexible cords, switches, plugs and socket outlets, accessories and equipment are found to be in good working conditions. d. All conductors are correctly and securely connected and identified. e. Armoured cables properly terminated to metal casing or trunking by proper cable glands. f. Cables passing through smoke lobby protected by enclosures of adequate fire rating. g. Non-sheathed cables protected by conduit, trunking or ducting. h. Cables and ductings adequately supported. i. Cables at distribution board or busbar terminated with cable lugs. j. Main cables connected up with correct polarity k. Cables protected against mechanical damage and suitably supported. l. All exposed metal parts including the armour effectively earthed. Tested / Checked by : (Name of Contractor s Representative) Witnessed by : (Name(s)) Signature: Signature Commissioning Plan April / 32

27 Busbar trunking system including rising mains a. The rising mains, lateral mains and meter boards positioned at places accessible from public area. b. Fire barriers provided where the busbar trunking system passes through floor slabs or walls designated as fire barriers. c. Cables passing through smoke lobby protected by enclosures of adequate fire rating. Item tested / checked by: Contractor Item witnesses by: d. Non-sheathed cables protected by conduit, trunking or ducting. e. Busbar trunking systems, cables and ductings adequately supported. f. The bolts, nuts, screws, etc. for busbar supports, busbar connections have been checked for correct tightness in accordance with manufacturers recommendations. g. The busbar trunking system is properly and correctly installed and aligned. h. No dust, foreign particles and deleterious substances are accumulated on the busbar trunking system. i. The busbar trunking system is free from condensation. j. Armoured cables properly terminated to metal casing or trunking by proper cable glands. k. Suitable cable lugs used for terminating cables. l. Precaution against corrosion taking on aluminium conductor joined to copper conductor. m. Cutout fuses for tapping off supply fitted with insulated carriers. Tested / Checked by : (Name of Contractor s Representative) Witnessed by : (Name(s)) Signature: Signature Commissioning Plan April / 32

28 Final circuits a. All fuses and single pole switches connected to the phase conductors only with correct polarity. b. Wiring for emergency lightings and fire services installation segregated from other wirings. Item tested / checked by: Contractor Item witnesses by: c. Low voltage circuits segregated from extra low voltage circuits. d. Cables of all phases and neutral of the circuit bunched and contained in the same conduit. e. Exposed insulated non-sheathed cables protected. f. Wiring inside false ceiling protected by conduit/trunking or metallic sheath. g. Socket outlets installed below 1.5m from floor being shuttered type complying with the prescribed requirements. h. No socket outlet installed close to water tap, gas tap or cooker so as to avoid danger. i. Floor socket outlets protected with suitable cover. j. No 2-pin sockets installed. All socket outlets connected with protective conductors and live conductors terminated at correct terminals. k. Radial final circuits using socket outlets. l. Final circuits using socket outlets. m. Final circuits using industrial socket outlets. n. Circuit protective conductor is formed by the enclosure and a separate protective conductor between the earthing terminal of socket outlet and its associated metal box provided. Tested / Checked by : (Name of Contractor s Representative) Witnessed by : (Name(s)) Signature: Signature Commissioning Plan April / 32

29 o. Circuit protective conductor is not formed by the enclosure and a separate protective conductor to the earthing terminal of socket outlet provided. a. Residual current device having a rated residual operating current not exceeding 30mA provided for all socket outlets. b. Minimum sizes of protective conductors are provided for limitation of protective conductor impedance. Item Tested/ checked by: Contractor Witnessed by: c. Means of isolation provided for every fixed appliance. d. All chokes, starters and capacitors of discharge lamps enclosed in earthed metal box(es) and suitably ventilated. e. Phase conductors connected to the centre contact of the Edison-type screw lamp holders. f. No switches other than a switch fed from a safety source or operated by an insulation cord or rod or a push-button type of switch having an insulated button of a large surface area provided in bathrooms. g. Shaver supply unit complying with EN or equivalent. h. Socket outlet in bathroom installed in zone 3 (i.e. 0.6m away from shower basin or bathtub); and protected by a 30mA residual current device or protected by an isolating transformer to EN i. No fixed luminaire nor fixed heater having unguarded heating elements installed within reach of a person using the bath or shower. j. Appliances exposed to weather being splash-proof type. k. Luminaires, switches, sockets and plugs, cable couplers installed outdoor, being splashproof type. l. General/site lighting readily accessible to the public supplied from a safety source. m. General/site lighting not readily accessible to the public and not supplied from a safety source, protected by RCD having a rated residual operating current not exceeding 30mA. Tested / Checked by : (Name of Contractor s Representative) Witnessed by : Signature: Signature Commissioning Plan April / 32

30 Earthing and Bonding Item tested / checked by: Contractor Item witnesses by: a. Earth rod electrode(s) having a diameter as shown on the drawing b. Copper tape earth electrode having a cross section of not less than 25 mm x 3 mm. c. Copper plate earth electrode not less than 3mm in thickness and having a maximum dimension of 1200mm x 1200mm d. No gas/water pipe used as earth electrodes.. e. A test link provided at the main earthing terminal. f. Minimum size of protective conductor used g. Protective conductor up to and including 6mm2 with green and yellow insulation sheath used throughout its length. h. Proper bonding conductors copper or equivalent used for connection to the earthing terminal of the electricity supplier s transformer(s) or underground cable(s). i. Copper links provided at joints of metallic trunking which forms part of a protective conductor. j. Separate protective conductors provided for all flexible conduits. k. A warning notice SAFETY ELECTRICAL CONNECTION DO NOT REMOVE provided at all main earthing and bonding connections. l. Main equipotential bonding conductors effectively connected to main water pipes, main gas pipes, other services pipes/ducting and exposed metallic parts of structural framework. Tested / Checked by : (Name of Contractor s Representative) Witnessed by : (Name(s)) Signature: Signature Commissioning Plan April / 32