TESTING AND COMMISSIONING PROCEDURE FOR …

1 TESTING AND COMMISSIONING PROCEDURE FOR electrical installation IN GOVERNMENT BUILDINGS OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION 2007 EDITION ARCHITECTURAL SERVICES DEPARTMENT THE GOVERNMENT OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION PREFACEThis TESTING and COMMISSIONING (T & C) PROCEDURE aims to lay down theminimum TESTING and COMMISSIONING requirements to be carried out on electricalinstallation in Government Buildings of the Hong Kong Special Administrative Region(HKSAR). Such requirements are applicable to both new installations upon completion andexisting ones after major present edition was developed based on its 2002 edition by the ElectricalSpecialist Support Group that was established under the Building Services BranchTechnical Information and Research & Development Committee. With the benefit ofinformation technology, electronic versionof this new edition is to be viewed on and freefor download from the Architectural ServicesDepartment (ArchSD) Internet homepage.

2 Aspart of the Government s efforts to limit paper consumption, hard copies of this T & CProcedure will not be put up for Architectural Services Department welcomes comments on its contents atanytime since the updating of this T & C PROCEDURE is a continuous process to tie in withtechnological T & C PROCEDURE is solely compiled for use on electrical installation carriedout for or on behalf of the ArchSD in Government buildings of the are no representations, either expressed or implied, as to the suitability of thisT & C PROCEDURE for purposes other than that stated above. The material contained in this T& C PROCEDURE may not be pertinent or fullycover the extent of the installation in non-government buildings. Users who choose to adopt this T & C PROCEDURE for their works areresponsible for making their own assessmentsand judgement of all information containedhere. The Architectural Services Department does not accept any liability and responsibilityfor any special, indirect or consequential loss or damage whatsoever arising out of or inconnection with the use of this T & C PROCEDURE or reliance placed on of ContentsPage 1 of 5EE_TCP2007 EditionTABLE OF of the TESTING and COMMISSIONING (T&C) of the T&C Preliminary Steps for TESTING and COMMISSIONING (T&C) TESTING and Inspection during Statutory Test and Functional Performance Documentation and and COMMISSIONING (T&C)

3 Tests and Inspections during Statutory Inspection and Test for Low Voltage Inspection before Sequence of Conductor Insulation Earth Electrode Earth Fault Loop Functions of All Devices including Protective Additional Check for installation in Statutory Inspection and Test for High Voltage Inspection before TESTING Functional Test of System Lightning Protection Circuitry Check12 Table of ContentsPage 2 of 5EE_TCP2007 EditionTABLE OF Charger and Battery Lighting Digital Multifunction Power Digital Power Busbar Trunking Equipment and Any Other Tests that are Considered Necessary toMeet the Design Assessment of Any Characteristics of Equipment Likely to haveHarmful Test and Inspection for Low Voltage Cubicle Visual Site Test before Connection of Incoming Site Test after Connection of Incoming Power Notification of Preliminary Steps for Power Switch On Calibrated Equipment20 AnnexAnnex ITesting and COMMISSIONING Certificate on electrical InstallationAnnex II TESTING and COMMISSIONING Progress Chart for electrical InstallationAnnex III TESTING and COMMISSIONING Certificate on Low Voltage CubicleSwitchboard (LVSB) InstallationAnnex IV TESTING and COMMISSIONING Progress Chart for Low Voltage CubicleSwitchboard (LVSB) InstallationTable of ContentsPage 3 of 5EE_TCP2007 EditionTABLE OF CONTENTSPageAnnex ITesting and COMMISSIONING Certificate on electrical InstallationPart 1 :Details of Project1 Part 2 :Declaration1 Part 3.

4 Items Inspected and Statutory Inspection and Test for Low Voltage ( ) Visual Inspection (COP Code 21A and Appendix 13) Conductor Continuity (COP Code 21B (3) and (4)) Insulation Resistance (COP Code 21B (5)) Polarity (COP Code 21B (6)) Earth Electrode Resistance (COP Code 21B (7)) Earth Fault Loop Impedance (COP Code 21B (8)) Function of All Devices including Protective Devices(COP Code 21B (9)) Additional Check for Installations in HazardousEnvironment (COP Code 21B (10)) Statutory Inspection and Test for High Voltage Visual Inspection (COP Code 21C and Appendix 13) TESTING of High Voltage ( ) Installations (COPCode 21D) Functional Test of System Lightning Protection Circuitry Charger and Battery Lighting Digital Multifunction Power Digital Power Busbar Trunking Equipment and Any Other Tests that are Considered Necessary toMeet the Design Assessment of Any Characteristics of Equipment Likely to haveHarmful Effects (COP Code 4D(3)) Comments26 Table of ContentsPage 4 of 5EE_TCP2007 EditionTABLE OF CONTENTSPagePart 4 :Test Record attached to the Test for Low Voltage ( ) for High Voltage ( ) Test for System Equipment27 Annex IITesting and COMMISSIONING ProgressChart for electrical InstallationTable of ContentsPage 5 of 5EE_TCP2007 EditionTABLE OF CONTENTSPageAnnex IIIT esting and COMMISSIONING Certificate on Low Voltage Cubicle Switchboard(LVSB) InstallationPart 1 :Details of Project1 Part 2 :Declaration1 Part 3.

5 Items Inspected and Visual Site Any Other Tests that are Considered Necessary to Meet theDesign Comments8 Part 4 :Test Record attached to the Test Test Before Connection of Incoming Functional Test of All Test After Connection of Incoming TESTING Equipment9 Annex IVTesting and COMMISSIONING progress chart for Low Voltage Cubicle SwitchboardInstallationPage 1 of 21EE_TCP2007 EditionTesting and COMMISSIONING PROCEDURE forElectrical Installation1. IntroductionThe procedures stated in this document cover the activities in preliminary tests andinspections, functional performance tests and the COMMISSIONING of newly completedinstallations and existing ones after major alteration. They are so compiled to facilitatethe work of Project Building Services Engineer (PBSE) and Project Building ServicesInspector (PBSI) in the following aspects with respect to TESTING and COMMISSIONING (T&C):(i)To vet and approve the T&C procedures proposed and submitted by theContractor;(ii)To witness those T&C procedures as specified; and(iii)To accept the T&C certificates and other supporting Contractor shall carry out the T & Cworks as detailed in this T&C plans may be proposedby the Contractor as appropriate andagreed by PBSE, for special equipment supplied and/or installed by the administrative requirements for T & C works are in general as specified in thelatest General Specification for electrical installation (the General Specification) issuedby the Building Services Branch of the Architectural Services Department.

6 If there isany discrepancy between this PROCEDURE and the General Specification, the GeneralSpecification shall take precedence. Major Alteration of an existing electricalinstallation means alteration involving workon any distribution board or electrical equipment having an electrical current ratingexceeding 100A single phase or 60A three phases in an existing electrical PROCEDURE is also intended to lay down the minimum TESTING and commissioningrequirements to be carried out by the Contractor on a new Low Voltage CubicleSwitchboard installation uponcompletion or on an existing Low Voltage CubicleSwitchboard installation after a major alteration involving modification of the mainbusbar such as upgrading, reposition and Objectives of the TESTING and COMMISSIONING (T&C) WorksThe objectives of the T & C works are:(i)To verify proper functioning of the equipment/system after installation ; and(ii)To verify that the performance of the installed equipment/systems meet withthe specified design intent through a series of tests and adjustments.

7 (iii)To capture and record performance data of the whole installation as thebaseline for future operation and 2 of 21EE_TCP2007 EditionFor the avoidance of doubt, depending onthe specific demands of individualinstallation, the PBSE may require additional or substitute T & C works in regard to anyelements in the installation other than those indicated in this Scope of the TESTING and COMMISSIONING (T&C) Steps for TESTING and CommissioningBefore carrying out T&C, the Contractor shall take the following steps:(a)Submit draft T&C procedures tothe PBSE for approval. The draftT&C procedures shall include essential procedures mentioned in thisprocedure plus additional T&C procedures required for specificinstallations as well as manufacturer s recommendation;(b)Obtain design drawings and specifications and to be thoroughlyacquainted with the design intent;(c)Obtain copies of approved shop drawings and equipment schedules;(d)Review approved shop drawings and equipment schedules;(e)Check manufacturer s operating instructions and statutoryrequirements;(f)Physically inspect the installation and equipment to determinevariations from designs and/or specifications.

8 (g)Check individual components, switches, control equipment,circuit breaker status, etc. for proper position and settings forcompleteness of installation .(h)Check inclusion of manufacturer s typical equipment TESTING data orfactors before T&C of particular and Inspection during ConstructionThe purpose of these tests is to ensure that all components and systems are in asatisfactory and safe condition before start up. Preliminary adjustment andsetting of equipment at this stage shall also be carried out at the same time topave way for the coming functional performance carrying out any test, the Contractor shall ensure that the installationcomplies with all relevant statutory requirements and regulations. The T&Cworks shall comply with all site safety regulatory requirements currently inforce, including but not limited to:(i)Electricity Ordinance, Chapter406, and other subsidiary legislationherein;Page 3 of 21EE_TCP2007 Edition(ii)The Code of Practice for the Electricity (Wiring) Regulations (COP)(iii) IEC 60364 electrical Installations of Building (iv)Electricity supply rules of the relevant power supply Test and InspectionThe statutory test and inspection herein stated in this T&C PROCEDURE shall referto the Regulations Nos.

9 19, 20, 21 and 22 of the Electricity (Wiring)Regulations under the Electricity Ordinance Chapter Performance TestsThe purpose of functional performance tests is to demonstrate that theequipment/ installation can meet the functional and performance requirementsas specified in the General/Particular Specifications. Functional performancetest should proceed from the TESTING of individual components to the TESTING ofdifferent systems in the Contractor may have to make temporary modifications as the testproceeds. The specific tests required and the order of tests will vary dependingon the type and size of systems, number of systems, sequence of construction,interface with other installations, relationship with the building elements andother specific requirements as indicated in the General/ParticularSpecifications. The TESTING of systems may have to be carried out in stagesdepending on the progress of work or as proposed by the of the tests may be required to becarried out in suppliers premises inaccordance with the provisions in the General/Particular performance deficiencies revealed during the functional performance testsmust be evaluated to determine the cause and whether they are part of thecontractual obligations.

10 After completion of the necessary corrective measures,the Contractor shall repeat the any test cannot be completed becauseof circumstances that are beyond thecontrol of the Contractor, it shall beproperly documented and reported to thePBSE, who shall then liaise with the relevant parties to resolve the Contractor shall resume his TESTING work immediately upon the attainmentof a suitable TESTING and DeliverablesThe Contractor shall submit his proposed T&C procedures together with theTesting and COMMISSIONING ProgressChart shown in Annex I to Annex IV,where applicable, to PBSE for inspection and T&C results shall be recorded by the Contractor in theappropriate test record forms, the reference of which is shown against eachindividual test. Sample of these forms can be found in Annex I and 4 of 21EE_TCP2007 EditionData recorded in other formats may also acceptable subject to agreementbetween the PBSE and the Contractor. Upon completion of all the requiredT&C works, the Contractor s project engineer shall complete and sign thetesting and COMMISSIONING certificate as shown in Part 1 and 2 of Annex Iand/or Annex III to the effect that the agreed T&C works have been dulycarried test reports covering all measured data, data sheets, and acomprehensive summary describing the operation of the system at the time ofthe functional tests shall be prepared and submitted to the PBSE.