Condition based maintenance and the use of condition based maintenance systems ensures that the condition of an item is always monitored and alarm limits can be programmed or specified to alert. Make sure to include all details andor any additional documentation, such as section, page number and illustrations. Underground cable system maintenance tnb distribution division maintenance manual. A conditionbased maintenance policy for multicomponent systems with a high maintenance setup cost. These limits should not be used for cables subjected to pulling tensions during installation. This document covers the asset life cycle of the following powerlink hv underground cable assets. Size and length of the cables to be checked by the engineer in charge and supervisor before cutting the hv cables. We propose a new cbm policy for multicomponent systems with continuous stochastic deteriorations. Any equipment damaged in service should be taken out of service and repaired or destroyed. Underground distribution cable systems course, april. L5ug national implementation vendor engineering standards. On conditionbased maintenance is they key to maintain the correct equipment at the right time.
The ufgs master uses the latest csi masterformat, therefore, as of january 2012, the ufgs working group decided to. Printer parts locations the power off timer wireless printing from a mobile device. General cable is the leading manufacturer of wire and cable solutions in the world. The document is very helpful for mep qaqc engineers to develop the professional electrical method statement for their project. Method statement for installation of high voltage hv. Read guidance for the selection, use, and maintenance of. Corrective maintenance dominates in todays power industry. A twoway cable analyzer is used to test each cable link. By using of fluke networks dsp4000 scanner, usa made, is used to test the connectivity of each cable link. Product basics see these sections to learn about the basic features of your product. The fluke networks scanner is capable of performing all the tests mentioned above in section 3. This will give a maintenance concept for cable circuits as part of the total maintenance policy for the network.
As per cable cutting schedule, site electrical supervisor will ensure that the cable drums are shifted to the required locations. This method statement for electrical work shall help you understand the requirements before and during the cable s and wires pulling process. Results of the condition assessment are input for the economical and technical assessment. Condition based maintenance on mv cable circuits as part of asset management. Cbm for service aged medium voltage cable circuits is realised by means of cable diagnostics as part of the condition assessment of the underground cable. The intent of periodic maintenance is to keep the system operating at an acceptable level of service to the public. Utilities and transmission owners are dealing with municipalities and a public that does not want to see new transmission lines and are suggesting moving them underground, but this move is a. This course will provide a comprehensive look at emerging trends in the design and maintenance of underground distribution cable systems. This process will determine the asset health, and act only when maintenance is actually necessary. Guidance for the selection, use, and maintenance of cable barrier systems provides guidance to highway agencies on the selection, use, and maintenance of cable barrier systems to reduce serious injuries and fatalities as well as operational costs.
Security dilemmas a major concern in setting up and maintaining network systems is the. Two technically viable underground cable systems were considered for this 345 kv underground application. A tiff file format when multiple pages are saved to the same file, allowing you to edit the images using a compatible program. The following describes the design criteria and assumptions used in the analysis. Tnb cable maintenance manual free download as pdf file. Broken wires are most apt to occur in lengths of cable that pass over pulleys or through fairleads. Appendixes a through d to nchrp 711 are not included in the pdf or print. Condition based maintenance this checks underground power transmission cables and aboveground grid fixtures like joints and terminations that have already experienced partial damage. In overhead power lines, a structure based network is used to transmit. Slide the fixed jaw onto the cable and swage the ferrule onto the end of the cable to be attached to post a see swaging instructions, pages 1516. On condition based maintenance is they key to maintain the correct equipment at the right time. These limits are relatively unimportant on overhead lines but will severely limit high voltage underground cable systems the higher the voltage the shorter the line length must be. Figueiredo algorithm research center, school of engineering, university of minho, campus of azurem, 4800058 guimaraes, portugal email.
Electrical inspection checklists this pdf contains 77 electrical inspection checklists taken from the 2014 electrical inspection manual with checklists. Is 56 code of practice for design, installation and maintenance of overhead power lines. The aging of power cables begins long before the cable actually fails. As the city continues to expend funds for the maintenance of streets, investment preservation and sustentation must be exercised.
Guidance for the selection, use, and maintenance of cable. Although a distribution system with underground cables is less maintenance intensive than one with overhead lines, it is necessary to have clear procedures for preventive, corrective and condition based maintenance in order to ensure a long trouble free operational life for the cables. Cables must be kept clean and inspected periodically for broken wires, corrosion, kinking, and excessive wear. Underground cable system ug cable condition based maintenance. On condition maintenance is based on using realtime data to prioritise and optimise maintenance resources. Reliability based maintenance and condition based maintenance. Prepare preliminary engineering studies and designs based upon the scope of work and as outlined in the professional engineering services. Cired paper final cired international conference on electricity.
A oneyear license for the quartus ii software is included with your purchase of this kit. Powerlink hv underground cable asset methodology framework. The city of san antonio is concerned and charged with the maintenance of a fundamental infrastructure component that provides modal carriage for safe transportation, quality of life, etc. To reduce the high setup cost of maintenance, a joint maintenance interval is introduced. For print quality, a variable amount of ink remains in the cartridge after the replace cartridge indicator comes on. Onsite preventive maintenance is designed around drive maintenance schedules and significantly reduces the risk of failure while increasing the lifetime of. No predictive maintenance program or strategy significant liability risk and system outage potential from old equipment vulnerable to failure limited assessment tools for determining asset condition decreasing expertise in both field maintenance and engineering no formalized capital spending program asset information in a. Underground cable system construction tnb cable installation guideline latest arahanand pekelilingfrom tnb precommissioning inspection and test piat 3 2 2. Crosslinked polyethylene xlpe and highpressure fluidfilled hpff systems. Currently, there are three maintenance methods employed by utilities. The checklists are in pdf format and can be completed electronically or printed and used as hard copy.
A conditionbased maintenance policy for multicomponent systems with a high maintenance setup cost citation for published version apa. Users guide downloadableprintable version workforce pro. Your product may look different from the illustrations in this guide, but the instructions are the same. Nns active duty, reserve and veteran seabees came together with the naval facilities engineering command navfac to commemorate the 78th birthday of the seabees march 7 with a ceremonial wreath laying at the seabee memorial in arlington memorial cemetery. Condition based maintenance on mv cable circuits as part.
Medium voltage cable diagnostics condition based maintenance on power cables nico van schaik, e. Sep 30, 2009 a unique preventive maintenance approach for a fluidfilled underground transmission system. Attendees will gain valuable insights into the science and practical steps to at least double the assumed life expectancy of their underground cable systems. Why should vlf be used for testing of mv underground cables. The limiting effects become very important at transmission voltages, especially 100,000 volts and above. You use sopc builder to define and integrate nios ii processorbased hardware systems. Standard for electric installation and use xcel energy. Introduction since the loads having the trends towards growing density.
On condition maintenance predictive maintenance cable testing. The city of san antonio is concerned and charged with the maintenance of a fundamental infrastructure component that provides modal carriage for safe. Assessing the condition and remaining life of underground electrical cables first edition december 2016 published by energy institute, london the energy institute is a professional membership body incorporated by royal charter 2003. Make sure all equipment used during cable installation is in good operating condition.
Company of colorado and southwestern public service company, xcel energy companies. Pdf condition based maintenance on mv cable circuits as part of. It helps to predict when and what kind of repairs might be needed in the future, or if faulty sections need immediate replacement. Underground distribution cable systems course, april 2018. Continual monitoring and maintenance of all hardware can mitigate the majority of the abovementioned risks and prevent timeconsuming and often costly restructuring andor overhauls of network systems. This process will determine the asset health, and act only when maintenance is. Chapter 9 electrical system maintenance general all electrical systems require periodic maintenance in addition to nonscheduled maintenance caused by unpredictable events such as storms, accidents, and equipment failure. To use the quartus ii software included in your kit, you must first obtain a license file. Method statement for installation of high voltage hv cables.
Next to that the methods for diagnosing xlpe cables, based on loss factor. While the complete chip level design package can be found on the the the adi web site, information on the card and how to use it, the design package that surrounds it, and the software which can make it work can be found here. Assessing the condition and remaining life of underground. Abstract maintenance is the combination of all technical, administrative and managerial actions during the life cycle of an item intended to retain it in, or restore it to, a state in which it can perform the required function en 306. The unified facilities guide specifications ufgs are published only in electronic format and are intended to be used with specsintact software. Key voice products accompanying this installation manual shall be referred to collectively herein as the product. Maintenance management proposal based on organization maturity level marcelo a. What are the maintenance procedures for underground.
This paper provides an introduction to the cable system types and presents an overview into considerations for using underground cable systems. The ufgs master uses the latest csi masterformat, therefore, as of january 2012, the ufgs working group decided to discontinue support of masterformat 1995. The discussion is focused on transmission cables but also has relevance for distribution cable applications. Slide the body onto the cable and swage the ferrule onto the end of the cable to be attached to post a see swaging instructions, pages 1516. The consequences of ineffective equipment maintenance can be huge in terms of system. Pdf condition based maintenance cbm is an part of asset management in a liberalised. Conditionbased maintenance cbm is becoming increasingly important due to the development of advanced sensor and information technology, which facilitates the remote collection of condition data. Communications applications include digital and analog, telephony, data, video, digital broadcasting, computer networks, local area networks lan, wide area networks wan and multimedia. Introduction increasingly, utilities, developers and power. Predictive conditionbased maintenance in predictive maintenance, machinery conditions are periodically monitored and this enables the maintenance crews to take timely actions, such as machine adjustment, repair or overhaul it makes use of human sense and other sensitive instruments, such as audio gauge, vibration analyzer, amplitude meter. The working load limits of rigging and hoisting equipment are determined for static loads. Download as docx, pdf, txt or read online from scribd. Users guide downloadableprintable version epson stylus.
Commission relating to cable systems contained in subpart k of part 76 of the fccs. Cable and rigid control systems maintenance cable and rigid control systems maintenance includes inspection to discover actual and potential defects, servicing with lubricants, and correction of reported malfunctions and defects. A condition based maintenance policy for multicomponent systems with a high maintenance setup cost citation for published version apa. Jun 14, 2015 condition based maintenance cbm is becoming increasingly important due to the development of advanced sensor and information technology, which facilitates the remote collection of condition data. The working load limits of rigging and hoisting equipment are. Trbs national cooperative highway research program nchrp report 711. Predictive maintenance programs are beneficial for improving the reliability of medium voltage cable systems. Unified facilities guide specifications ufgs wbdg whole. Click the binoculars toolbar icon to open the find dialog. The adrv9371wprbz, adrv9371npcbz and adrv9375npcbz are fmc radio cards for the ad9371 respectively ad9375, a highly integrated rf transceiver. Diagnostic tests used on new and on service aged cable systems. Power cable installation guide figure f5 multiple sheaves figure f6 sheave arrangements for feeding into cable tray training radius the training radius is the final positioning of cable ends after the cable has been placed in the raceway. A condition based maintenance policy for multicomponent systems with a high maintenance setup cost.
Underground transmission lines are a very small percentage of the transmission grid across the country, yet they are more complicated and time consuming in design, construction, repair, and maintenance. Limiting effects may also be important for subtransmission. Nov 29, 2014 predictive conditionbased maintenance in predictive maintenance, machinery conditions are periodically monitored and this enables the maintenance crews to take timely actions, such as machine adjustment, repair or overhaul it makes use of human sense and other sensitive instruments, such as audio gauge, vibration analyzer, amplitude meter. To reduce the high setup cost of maintenance, a joint maintenance interval is. A conditionbased maintenance policy for multicomponent. For both types of cable systems a number of variables remain constant. Being able to predict the incipient problems, condition based. Users guide downloadableprintable version workforce. At present, numerous high voltage xlpe cable systems with nominal voltages up to 500 kv and. Implementation of condition based maintenance for medium. The development of high voltage xlpe cable systems goes back to the since then production and material technology have improved significantly, providing reliable and maintenancefree products to the utility industry. When the cables are received inspect the protective covering on the cable for evidence of shipment damage. Mafijur rahman electrical and electronic engineer professional associates limited.
Implementation of conditionbased maintenance for medium. This method statement defines the procedure step by step to implement the correct practices for installation of high voltage hv cable in order to ensure that the job execution complies with the project requirements and serves the intended function to satisfactory level. Condition based maintenance on mv cable circuits as part of. Pdf technical design of condition based maintenance system. On condition maintenance predictive maintenance cable. Summary condition based maintenance cbm on power cable circuits is an important part of. Condition based maintenance cbm program for medium voltage underground cables after early application of very low frequency vlf. Condition of poles, recurring fees, number of attachments, clearance and safety concerns must all be taken into account when considering aerial placement. Technical staff who install underground cable for new and upgrades of telecommunications cabling infrastructure apply the skills and knowledge in this unit. Limited warranty the initial hardware and software of all key voice technologies, inc. Maintenance manual chapter 9 electrical system maintenance. High voltage xlpe cable systems technical user guide. Cable control systems require more maintenance than rigid linkage systems.
940 175 701 973 996 604 128 1053 982 1133 996 54 608 1152 154 1268 464 1211 583 1040 1422 680 37 1376 1335 578 983 613 1310 859 1093 1037 258 1422 247 504 116 55 1057 1193 393 276 421 217 394 593 184