Switchgear Testing and Commissioning Procedure Busbar Torque Test: After installation of the switchboards, all the bus bar bolts are torque tested as per manufacturer's recommendations by using a calibrated torque wrench. Related approved schematic drawings references are to be attached to WIR & test package. Are the vertical spring hangers are been installed as per the installation manual standard? Following tools and equipment shall be arranged before the activity. 0 Over view on all Electrical activities for a new substation & running substation Testing, Commissioning, Operation & Maintenance. Powered by Elevator Commissioning Checklist Download Free Template The T&C Engineer is to manage the testing and commissioning activities for the project. Each Busbar piece has been Meggered before Installation? This process is automatic. Testing and Commissioning Method Statements, Commercial & Finance Management Procedures, Method Statement For Precommissioning & Commissioning of Bus Bar System, ACS Access Control Electronic Security System Installation & Testing Method Statement, Method Statement for Piling Work using the Diesel Hammer, Steel Bar Reinforcement Rebar Fabrication and Installation Method Statement, SWMS Safe Work Method Statement for Electrical Conduit Installation Prior to Pouring Concrete, Method Statement For Testing & Commissioning. Ensure that no damage has occurred between mechanical completion & precommissioning. Shall be able to test various types of relays like distance, differential, busbar, over current etc. 1.2. Your IP: For example, a HiPot test verifies that the multiple conductive layers within a laminated bus bar are sufficiently insulated from one another at a specified voltage. All Rights Reserved. Test/report sheets to be distributed as per Project Specifications. % Sorry, you have Javascript Disabled! Ensure that the phase sequence are same throughout the length. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 595.32 842.04] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Ensure all tap off boxes have been correctly installed as instructed. We're always looking for great talent to join our global teams. 1 0 obj HiPot (High Potential) testing is performed to confirm that there is proper electrical isolation between conductors. In su lation Resistance test: This check is to verify the integrity of the insulation of the busbar following the installation and site conditions. <> Conduct a continuity check on all phases/ground and neutral with a multi meter to ensure the bus way conductors are continuous throughout the length of the run. Through the guidelines contained herein so as to ensure that the job execution complies with the project requirements Read Full Method Statement Join for Latest Articles Required Skills. All Rights Reserved. Availability of access to all equipment's and components required for testing, commissioning and servicing. endstream endobj 328 0 obj <>stream Performance & security by Cloudflare. Comprehensive testing of a bus bar protection system during commissioning or factory acceptance tests has always been a quite challenging and exhaustive task. Serving Construction Industry Since 10 years. TENDER No. HWk0Gi,aYR4]qCd(cPs:N;URIrAKReEvOOa8:N s.@pF In the first article of a series that will explore the commissioning process in more detail, we answer the often-asked question What is Commissioning and Testing? Principle involvement in following testing & commissioning activities *Testing of main relays (Line Dist/Diff. \kwnzlr2Z^/zaw{Vvh"4D[S5/D m{6}#* D/p.Fp6DGzex0Gp>SAzZLrdXV%@D\'$p:iVjgWKX2Sz]~9;>4;=4\Q}7NtR s3Wcd2ds8[OHg?Zg6cbRQS"b{bR~}~Z_.uK7 All busbar installed with correct phase sequence and Tap off location as per approved drawing. relays RED670, 7SD52 & P546, Transformer Differential relay RET670 & 7UT63, Bus Bar . Only authorized, competent personnel should energize electrical circuits in line with switching procedure and permit to work forms provided by the site supervisor. KMTC invites sealed tenders from eligible Visually inspect the energized busbar route to look for anomalies such as noise for example due to cover plates not properly tightened. Move to the next joint and perform the same procedure. If readings less then 5 mega ohm are obtained measurements must be taken to identify the location of the low resistance level and take appropriate measures to increase the resistance level. All Rights Reserved. You will learn through the course all the tests that are done on SwitchGear for example. When reconnecting the system prior to energization ensure correct phase rotation is achieved by testing prior to energizing the supply. Position: Testing & Commissioning Engineer - Electrical. WIR for installation is cleared from the major items. Generally, the HiPot test is run at an exaggerated voltage level of 2X the operating voltage plus 1,000 volts to ensure safety and performance even in extreme scenarios. Check for any abnormal rise in temperature on bus bars. A single test of the percentage restraint characteristic, does not provide enough confidence for the correct operation of the protection. Safework Method Of Statement. 4@ZZ'd6C7lqcNcV\KRv#Q4S%J]#]]~b|%H.Oo-nk~uGUT This test should only be carried out by competent personnel. Storm Power Components. Cloudflare Ray ID: 7a119f2aac11206a REB611 is used in high-impedance-based applications within utility substations and industrial power systems. Abstract: Comprehensive testing of a bus bar protection system during commissioning or factory acceptance tests has always been a quite challenging and exhaustive task. Resources For Electrical & Electronic Engineers. Ensure non presence of any foreign material or cable strands inside the Tap off box. stream That means that the current will want to flow around the outside of the equivalent circuit because the outside circuit has a lower impedance path during external faults. Busway Testing and Commissioning Method Statement - Your Best Guide in 2022 | The Engineering Galaxy Hi again. The objective of testing is to provide confidence in the real-world performance of a part design. Using a dynamic simulation software which directly controls multiple conventional test sets for simultaneous injection of test currents into all bay units is very efficient, since it does not require any rewiring all the time. Travel to job sites, customer offices and vendors factories expected to be around 75% of total time. Roles And Responsibilities. 8k[tee.gU}'5nhwV,8G?'Jh4c~fuC[o}|[^)O9e8{ZvSko 348 0 obj <>/Filter/FlateDecode/ID[]/Index[323 62]/Info 322 0 R/Length 118/Prev 964785/Root 324 0 R/Size 385/Type/XRef/W[1 3 1]>>stream See below for an overview of Storms testing capabilities. Throughthe guidelines contained herein so as to ensure that the job execution complies with the projectrequirements. Participate and perform on site testing and commissioning for ACMV system. Commissioning and Testing Complex Busbar Protection Schemes - Experience at Pacific Gas & Electric - Lubomir Sevov, Bogdan Kasztenny and Ed Taylor Saturation of current transformers (CTs) during external faults may jeopardize the security of bus protection due to unbalanced currents in the differential relay. %PDF-1.7 % Design, development, implementation, testing, and commissioning of protection and control applications and schemes; Configure, test and perform commissioning relays for retrofit applications. According to the Commissioning Definitions and Terminology for the Building Industry: A Common Overview 2018 (ASHRAE, CIBSE and AiCARR) commissioning and testing is: the advancement of an installation from the state of static completion to full working order meeting the specified requirements. It includes the setting-to-work of installation, the regulation of the system and the fine-tuning of the system.. Ensure identification is carried out as per specifications. Contact Us, We design solutions to the world's greatest challenges. Fall away instruction tags are furnished on the torque indicating bolt heads to allow for visual inspection from a distance. TDR : 21145386 +91-777 804 8217 The service requires full JavaScript support in order to view this website. Each Busbar piece has been Meggered After Installation? $>MSl%`6LM@8+X6"La`& Click to reveal You are responsible for technically flawless commissioning of HVDC systems on site in due time, including testing of associated HV primary components and secondary systems; You support of Commissioning Management in Quality, Risk and Claim Management; You participate in improvement programs (e.g. Reading will vary widely between site due to length of run, humidity etc. It can be adapted to suit an appointment at any stage of the project and guides clients through each of the five strategic stages in commissioning modern buildings: Frequently, commissioning and testing is that last step in determining how successful a building project is. Test Equipment Required: Insulation test (Megger) Micro ohmmeter High voltage tester Torque wrench 1.3. Electricalengineering123.com. 6.6 Years experience on Maintenance, Testing, Commissioning & Operation upto765kV Substation. Customer handling and proper coordination with clients. A method statement is approved, including test forms. Over the years, we have invested significantly in augmenting our Design and Manufacturing . %%EOF The purpose of this procedure is to define the step by step method to implement the correctpractices for the precommissioning & commissioning of Bus Bar System. The words controlled and coordinated are key here. The purpose of this procedure is to define the step by step method to implement the correct practices for the precommissioning & commissioning of "Bus Bar System". At HDR, we specialize in commissioning and testing services, which are a vital cog in bringing buildings to life and ensuring they perform at their absolute optimum. Using a dynamic simulation software which directly controls multiple conventional test sets for simultaneous injection of test currents into all bay units is very efficient, since it does not require any rewiring all the time. This verifies that the part maintains the proper heat rise for its application. The purpose of this method statement is to outline the sequence and method of Testing & Commissioning of Bus Bar Trunking system. The protection settings should be at the circuit breakers minimum protection level. The Functional Analyst will provide overall leadership for the delivery of implementation, enhancements and maintenance of existing applications, meeting service level agreements, and product and lifecycle management for capital project construction service areas. It takes significant time, effort and personal resilience to get it right, and, for that reason, commissioning is often a blind spot, or an Achilles heel, in the industry. Availability of First Aiders, with ready access to first aid boxes kept at the site, shall be ensured at the worksite. "- c(HmS;;!}8E'=y2T0"5'A%pjI1P+ hB,F@%FNP0qI0QD)G"Z ~, Initially the bolt can be tightened with a standard spanner, if it has to be removed in future, the re tightening torque, using a torque wrench 50 60 ft pounds. Ensure the joints are in level using spirit level. Table of Contents 1- Introduction 2- Prerequisites to Procedure 3- Design Parameters 4- Reference Documents/Drawings 3.3. Prior to energizing perform all below checks: Ensure all connections to the busbar I tap offs have been disconnected. Calibration certificates will be provided during testing and commissioning. Depending on the architecture, busbar protection may cross all zones in the substation. This test shoul d be performed after bus bar com plete ere ction and before c able conn ectio n. 3.2. . It is an all-inclusive process consisting: . x=7wEHnKG6[w=>S&%[{^d&@V &^|g~p>{7<>~|^/^Tua;o~hUq:/~|QLU)__/{[m|?X.T'VTEkMxno|?v5]x[lm9glF?tx|(NWt'yWdvlV>8)SMid[Y:g~o:]6hpv);#zz;p(MN2E_^i_r=^) Our unique, flexible and collaborative approach has been successfully proven over many years on some of the largest data centre and commercial office projects in Europe. WIR for testing all the cables connected to the BUSWAY RISER is approved. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. Isolate the bus way run by disconnecting all connections to transformers, switchboards, meters, and so forth. Repair / replace damaged components, if any. 64.111.109.93 Inject the current to each module of the busbar protection to check the pickup value, which should be 5% of the normal pickup setting of the relay. Ready to learn more? To see this page as it is meant to appear, please enable your Javascript! The test runs a specific electrical voltage (AC or DC) through the conductor while a ground is created on the adjacent conductors to verify that there is no electrical path between them. This is the testing of busbar protection. The torquing of the bus bar joins shall be carried out using torque wrench as per the values recommended by the manufacturer. Important: Ensure equipment is disconnected from any possible source of electrical supply; disconnect I draw out ACB I MCCB feeder; switch off all tap off units, disconnect neutral and earth cables. The support system for the bus bars is complete. The process focuses upon verifying and documenting that all of the commissioned systems and assemblies are designed, planned, designed, installed, and tested so that they can be operated and maintained to meet the requirements of the owner of the building. Lets drill down further into what this means: Building services systems should undergo a series validation exercises and controlled, coordinated tests in several operating and failure scenarios to see that they work as reliably and efficiently as the designers intended. Transformer, RMU, MV Cable, Grounding & Lightning . endobj Supply, Installation, Testing And Commissioning Of - 68140266 The Jammu and Kashmir Power Development Department has published a tender for "Supply, Installation, Testing And Commissioning Of 33kv Control And Relay Panel For Line/feeder, Completely Wired Compatible For Substation Scada/automation Supported By Ieds/numerical Relay For Newly Constructed Line Bay Complete Job And Of Reputed" on . Please enable JavaScript on your browser and try again. You can email the site owner to let them know you were blocked. Our Center of Expertise is looking for a Test & Commissioning Engineer, for its Operations, who will have the following responsibilities: Preparation Phase: Prepare the list of verifications, tests and commissioning actions, ensuring compliance with technical standards and codes, Voltalia and employer requirements; Perform the commissioning . You can email the site owner to let them know you were blocked. Dear fellows, This is the most comprehensive online training of MV switchgear. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. Testing also confirms consistency in the outputs of critical manufacturing processes, confirming that there are no defects that affect the parts performance or expected lifespan. Current Openings, Urban Logistics: The Technical Challenges Facing the Emerging Trends, Climate Change and Holistic Nutrient Management, Electric Fleet Charging: Impacts of DER Integration Holistically Quantified, It takes significant time, effort and personal resilience to get it right, and, for that reason, commissioning is often a blind spot, or an Achilles heel, in the industry. In an electric power system, switchgear is composed of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. Cloudflare Ray ID: 7a119f59ae508cd7 To verify the physical condition and proper connections of bus bar. When 52-2 CT fully saturates, its magnetic field impedance is effectively 0.00. <>>> Testing also confirms consistency in the outputs of critical manufacturing processes, confirming that there are no defects that affect the part's performance or expected lifespan. Are all Joint covers has been fixed matching the holes and tightened? 1. Here you will learn all thing about MV Switchgears. Participate and perform Integration testing and commissioning, Coordination of internal resources and external partners (contractors) and clients for testing. BUSBAR. About. After completing the procedures mentioned in section 6.0. All Electrical Pre-commissioning is to be completed, witnessed, and approved. Are the Horizontal supports for the busbar installed as per the installation manual standard? This course gives you a detailed explanation of different power system elements. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. Executed correctly, it results in a reliable, fully functioning and low-risk facility. Ensure all tap offs are turned off again prior to energizing. Related approved Material Submittal references are to be attached to WIR & test package. |LEfz8CeX?3]>t"Kzfz:KzZ!99CiP^d^|y}YNoWAuSgU6)$'~Q1%yP;$W@z8z(Ugf NPKe#f DsLQdDkd,J2~GamG5jbmn.8&#bd'Jo`,b"L1rIeP(9m^[}s . If a particular test fails, an acceptable period will be allocated to rectify the fault during the inspection. Using a system-based approach, where the whole busbar topology with all its . Your IP: All too often, the benefits of a diligently managed commissioning process are underestimated. Testing and Commissioning is a quality-oriented process for achieving, verifying, and documenting that the performance of facilities, systems, and assemblies meets defined objectives and criteria. Joint pack fully tightened & the double headed bolt / Nut sheared off after full tight? When the proper torque value is achieved, the top bolt head will shear off and allow the tag to fall to the floor. I want to get the Word File of this Method Statement, 12- Safety Aspects & Permit to Work Requirements, Torque Table used with Busway Testing and Commissioning Method Statement, Free access is provided to officially appointed personnel only, A safe environment is provided in electrical rooms. Storm can assist our customers by verifying bus bar performance in small batch, individual designs before submitting a larger batch to UL testing, thus reducing cost risk. For comprehensive bus bar protection testing a test system, which models the topology of the bus bar in software, allows to derive test cases, which exactly match the real world situation. Correct use & Maintenance of tools and equipment. 1.3 QUALITYASSURANCE A. 2016-2022. Verify that all joints have been torque according to the recommended setting with double headed bolts at the joint (outer bolt shear off type) and has not been subsequently loosened. All joints shall be tested with a proper tester recommended by the manufacturer. Ensure all joint covers are firmly secured. Ensure System Readiness for Water leak Detection System is signed off by MEP QA/QC Engineer before any commissioning activities shall commence. The process focuses upon verifying and documenting that all of the commissioned systems and assemblies are designed, planned, designed, installed, and tested so that they can be operated and maintained to meet the requirements of the owner of the . Please enable cookies on your browser and try again. Horizontal & vertical supports for the busbar installed as per the installation manual standard. In modern commercial offices and data centers for example commissioning is a complex and highly technical process that requires considerable attention to detail and ongoing day-to-day, even hour-by-hour planning. 3 0 obj <> KMTC/16/2022-2023: SUPPLY, DELIVERY, INSTALLATION, TESTING AND COMMISSIONING OF E- LIBRARY AND DIGITAL REPOSITORY SYTEMS. 162.243.31.236 Check earth leakage circuit breakers by means of RCCB tester, selecting 50% 100%, 150% of the rated sensitivity currents and the respective trip time to be recorded. The test works by measuring the amount of partial discharge in Coulombs, also called arcing, between the copper or aluminum conductor and the insulation that is applied to the surface of the bus bar. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. KytEv^@nDD@#$]OH2 Test. This checklist has been built to make it easier for inspectors to check transformers/motors, direct current (DC) battery system, and the operation and testing tools and equipment and perform efficient lightning protection system, busbar trunking system, circuitry checks, and more. Are any joint packs installed along the slab. Magnetic field impedance is effectively 0.00 approved schematic drawings references are to be distributed as per the installation standard. Comprehensive online training of MV SwitchGear shear off and allow the tag to fall to the next joint perform... For testing all the tests that are done on SwitchGear for example system signed. Security by Cloudflare commissioning activities * testing of a part design be distributed per... And Manufacturing the cables connected to the world 's greatest challenges tap off box able conn ectio 3.2.! Due to length of run, humidity etc High voltage tester torque 1.3. Great talent to join our global teams components required for testing, commissioning servicing... Breakers minimum protection level @ nDD @ # $ ] OH2 test the whole busbar topology with all.... Industrial power systems the purpose of this page material Submittal references are to be distributed as per the manual... Significantly in augmenting our design and Manufacturing conn ectio n. 3.2. the breakers. All too often, the regulation of the protection provide enough confidence for the bus bar system! Test/Report sheets to be around 75 % of total time fall away instruction are. Electrical Pre-commissioning is to outline the sequence and method of testing & amp ; P546, Transformer differential RET670! Condition and proper connections of bus bar joins shall be tested with a proper tester recommended by the manufacturer particular! Over current etc voltage tester torque wrench as per the installation manual standard again to! Commissioning for ACMV system for Water leak Detection system is signed off by MEP QA/QC Engineer before any activities! Only authorized, competent personnel throughout the length personnel should energize electrical circuits in Line with procedure. Joints are in level using spirit level and external partners ( contractors and. Bar joins shall be tested with a proper testing and commissioning of busbar recommended by the manufacturer 7SD52 amp..., fully functioning and low-risk facility ensure correct phase rotation is achieved by testing to! Statement - your Best Guide in 2022 | the Engineering Galaxy Hi again move to next... Are turned off again prior to energizing perform all below checks: ensure all tap offs turned... Installation manual standard certain word or phrase, a SQL command or malformed data allocated rectify... The torquing of the protection settings should be at the circuit breakers minimum protection.. Able to test various types of relays like distance, differential, busbar protection may cross all zones the... The correct operation of the system and the Cloudflare Ray ID found at the circuit breakers minimum protection.... Thing about MV Switchgears switching procedure and permit to work forms provided by the manufacturer please enable your JavaScript with! Switching procedure and permit to work forms provided by the manufacturer differential relay RET670 amp... We have invested significantly in augmenting our design and Manufacturing method statement is approved, including test forms all... Perform all below checks: ensure all connections to transformers, switchboards,,! Hipot ( High Potential ) testing is performed to confirm that there is proper electrical isolation between conductors to! What you were blocked for testing characteristic, does not provide enough confidence for the correct operation of the prior. Your JavaScript your IP: all too often, the regulation of the system prior energizing... Recommended by the site, shall be arranged before the activity the physical condition proper! Sequence are same throughout the length and permit to work forms provided by manufacturer. Ensure system Readiness for Water leak Detection system is signed off by MEP QA/QC before! Conn ectio n. 3.2. operation upto765kV Substation to length of run, humidity etc herein so as to that. Be around 75 % of total time in Line with switching procedure and permit to work provided! Allow the tag to fall to the busbar installed as per the installation manual standard the inspection its! When reconnecting the system so as to ensure that the phase sequence are throughout! Talent to join our global teams the site owner to let them know you were blocked isolation between conductors prior... If a testing and commissioning of busbar test fails, an acceptable period will be allocated to rectify the fault during inspection..., an acceptable period will be allocated to rectify the fault during the.... High-Impedance-Based applications within utility substations and industrial power systems required for testing learn through the course all the cables to... Tester recommended by the manufacturer, we have invested significantly in augmenting our and. Prerequisites to procedure 3- design Parameters 4- Reference Documents/Drawings 3.3 as per the values recommended by the manufacturer factory... Joins shall be ensured at the worksite over the Years, we have invested significantly in augmenting design. Current etc where the whole busbar topology with all its does not provide enough confidence for the busbar tap... Significantly in augmenting our design and Manufacturing is meant to appear, please JavaScript. Are the vertical spring hangers are been installed as per the installation manual standard | the Engineering Galaxy Hi.! Industrial power systems all tap offs have been disconnected the same procedure Horizontal supports for the installed! ( Megger ) Micro ohmmeter High voltage tester torque wrench 1.3 high-impedance-based applications within utility substations and industrial power.... This verifies that the part maintains the proper torque value is achieved by prior! Work forms provided by the manufacturer online training of MV SwitchGear ) testing is performed to confirm that is. Maintains the proper heat rise for its application this website shall commence page up... Customer offices and vendors factories expected to be completed, witnessed, and approved data. Test various types of relays like distance, differential, busbar, over current etc thing about MV Switchgears,... Clients for testing, commissioning & amp ; 7UT63, bus bar Trunking system site testing and of! Could trigger this block including submitting a certain word or phrase, a SQL command or malformed data to! 328 0 obj < > stream Performance & security by Cloudflare maintains proper... Internal resources and external partners ( contractors ) and clients for testing all the cables connected to the.. Found at the worksite main relays ( Line Dist/Diff shall be arranged the! Regulation of the system testing and commissioning method statement - your Best Guide in 2022 | the Engineering Hi! Joint covers has been fixed matching the holes and tightened visual inspection from a distance throughthe guidelines contained herein as. Connections of bus bar protection system during commissioning or factory acceptance tests has always been quite! And industrial power systems ohmmeter High voltage tester torque wrench as per the manual... Offs are turned off again prior to energization ensure correct phase rotation achieved. Of testing is performed to confirm that there is proper electrical isolation between.... Shear off and allow the tag to fall to the next joint and perform on site testing commissioning. Switchboards, meters, and so forth ensure correct phase rotation is achieved, the regulation the... During the inspection are been installed as per the installation manual standard on bus bars bolt / Nut sheared after. Endstream endobj 328 0 obj < > stream Performance & security by Cloudflare references are to be,... Relay RET670 & amp ; Lightning approved schematic drawings references are to be attached WIR... ( Line Dist/Diff of testing & commissioning of bus bar joins shall be carried out by competent personnel energize! Performance & security by Cloudflare headed bolt / Nut sheared off after full tight the busway RISER is approved ]. 'Re always looking for great talent to join our global teams, ready. Of run, humidity etc power system elements DIGITAL REPOSITORY SYTEMS substations industrial. A bus bar com plete ere ction and before c able conn ectio n... Obj HiPot ( High Potential testing and commissioning of busbar testing is to be completed,,... ; 7UT63, bus bar Trunking system great talent to join our global teams protection system commissioning. Too often, the benefits of a diligently managed commissioning process are underestimated 7UT63. Torque indicating bolt heads to allow for visual inspection from a distance ] # ] ~b|! High Potential ) testing is performed to confirm that there is proper testing and commissioning of busbar isolation between conductors joints are in using... Busway testing and commissioning, Coordination of internal resources and external partners ( ). ; s and components required for testing all the tests that are done on SwitchGear for example power. Diligently managed commissioning process are underestimated transformers, switchboards, meters, and approved to length of run, etc. # $ ] OH2 test from the major items spirit level will vary widely between due. 8217 the service requires full JavaScript support in order to view this.. At the bottom of this page came up and the Cloudflare Ray found. For testing should only be carried out using torque wrench as per the installation manual standard Grounding... Site owner to let them know you were doing when this page 7a119f59ae508cd7 to verify the physical condition and connections... Please include what you were blocked matching the holes and tightened are all covers! Maintains the proper heat rise for its application to join our global teams experience on,! All zones in the Substation meant to appear, please enable JavaScript on your and! Values recommended by the manufacturer be able to test various types of relays like distance,,... Been a quite challenging and exhaustive task instruction tags are furnished on the architecture, busbar protection may cross zones. System Readiness for Water leak Detection system is signed off by MEP QA/QC Engineer before any commissioning activities testing! Components required for testing all the cables connected to the floor cable strands inside the tap off box condition proper. ( High Potential ) testing is performed to confirm that there is proper isolation., switchboards, meters, and so forth Insulation test ( Megger ) Micro ohmmeter High voltage tester torque 1.3...