Pub Date : 2014-05-21DOI: 10.1109/ICOLIM.2014.6934351
Martin Portillo
This article brings together and complements previous discussions about the main contributions of Live Working (LW) in the modern management of electrical systems. Indeed, we will remember how LW are a good example of the application of the principles of Corporate Social Responsibility, how LW are an example of excellence in management and how along their many years of use, LW have been a continuous engine for innovation. These contributions -which can be considered as different approaches to LW- are especially important in current times where the companies responsible of the management of power grids, either transmission or distribution, have assumed a growing commitment with society. Today is imperative for these companies to find the right tools that will allow them to meet the growing social demand for quality of supply and network security, among many other challenges. This could be compared to a polyhedron where these different approaches to LW represent the different faces and in the interior we could find the service that grids provide to society as well as the LW themselves. We can look into this polyhedron through any of its faces, but we will always see within it the same set of benefits. A better understanding of this polyhedron will help us achieve a greater participation of LW in the maintenance and even construction tasks performed by the Electric Utilities. This article may help as well those people responsible for the human teams involved in Live Working techniques to motivate their members. Motivation is fundamental for a company if we want to keep a machine working in perfect condition. If an employee believes in the mission of the company, if he believes that his role is important, it is more than likely that his effectiveness will increase. This requires that the employee, in this case the Live Working expert, learns in depth all the aspects of his field to the point to achieve excellence. The achievement of excellence will generate in the worker a feeling of pride .. This article presents then some of the most noteworthy aspects of Live Working to be taken into account in the training and retraining courses to get motivation. This paper brings also some ideas on how to upgrade the communication strategies that will allow us as to get a greater penetration of LW, with the conviction that this increased penetration is very beneficial for both utilities as well as the companies that provide LW services. One of the many possible actions to undertake would be the formal teaching of LW in the university with the most appropriate study techniques. Engineering students are the future managers and operators of electrical systems so these specific studies would be a great opportunity to introduce them into the details of these construction and maintenance techniques as well as transmit them how exciting and challenging is to maintain electrical systems that are continuously operating every day of the year and every minute of the day.
{"title":"For a better understanding of Live Working","authors":"Martin Portillo","doi":"10.1109/ICOLIM.2014.6934351","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934351","url":null,"abstract":"This article brings together and complements previous discussions about the main contributions of Live Working (LW) in the modern management of electrical systems. Indeed, we will remember how LW are a good example of the application of the principles of Corporate Social Responsibility, how LW are an example of excellence in management and how along their many years of use, LW have been a continuous engine for innovation. These contributions -which can be considered as different approaches to LW- are especially important in current times where the companies responsible of the management of power grids, either transmission or distribution, have assumed a growing commitment with society. Today is imperative for these companies to find the right tools that will allow them to meet the growing social demand for quality of supply and network security, among many other challenges. This could be compared to a polyhedron where these different approaches to LW represent the different faces and in the interior we could find the service that grids provide to society as well as the LW themselves. We can look into this polyhedron through any of its faces, but we will always see within it the same set of benefits. A better understanding of this polyhedron will help us achieve a greater participation of LW in the maintenance and even construction tasks performed by the Electric Utilities. This article may help as well those people responsible for the human teams involved in Live Working techniques to motivate their members. Motivation is fundamental for a company if we want to keep a machine working in perfect condition. If an employee believes in the mission of the company, if he believes that his role is important, it is more than likely that his effectiveness will increase. This requires that the employee, in this case the Live Working expert, learns in depth all the aspects of his field to the point to achieve excellence. The achievement of excellence will generate in the worker a feeling of pride .. This article presents then some of the most noteworthy aspects of Live Working to be taken into account in the training and retraining courses to get motivation. This paper brings also some ideas on how to upgrade the communication strategies that will allow us as to get a greater penetration of LW, with the conviction that this increased penetration is very beneficial for both utilities as well as the companies that provide LW services. One of the many possible actions to undertake would be the formal teaching of LW in the university with the most appropriate study techniques. Engineering students are the future managers and operators of electrical systems so these specific studies would be a great opportunity to introduce them into the details of these construction and maintenance techniques as well as transmit them how exciting and challenging is to maintain electrical systems that are continuously operating every day of the year and every minute of the day.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"875 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114411265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-21DOI: 10.1109/ICOLIM.2014.6934375
A. Carreira
The paper provides a review of the conditions that may be found on new and in-service non-ceramic insulators (NCIs) that will affect the decision on whether the NCI can be worked on using live-line work methods or not. Insulator conditions will also be identified that are deemed to be inconsequential to live-line working. Various diagnostic tools and guidelines are reviewed indicating their strengths and limitations. Various electrical test practices of NCIs are also reviewed as a means of ensuring safety in live-line working on or in the vicinity of NCIs.
{"title":"Live-line working of non-ceramic insulators","authors":"A. Carreira","doi":"10.1109/ICOLIM.2014.6934375","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934375","url":null,"abstract":"The paper provides a review of the conditions that may be found on new and in-service non-ceramic insulators (NCIs) that will affect the decision on whether the NCI can be worked on using live-line work methods or not. Insulator conditions will also be identified that are deemed to be inconsequential to live-line working. Various diagnostic tools and guidelines are reviewed indicating their strengths and limitations. Various electrical test practices of NCIs are also reviewed as a means of ensuring safety in live-line working on or in the vicinity of NCIs.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117270990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-21DOI: 10.1109/ICOLIM.2014.6934344
V. Lovrenčič, B. Gomišček
Live working can be considered a contribution to safety at work, as it is an example of electrical installation maintenance with the zero accidents philosophy. The purpose of this paper is to promote the concepts of maintenance work without accidents or with “zero accidents”. Live working can be identified as an unquestionable foundation of business excellence. This paper introduces the legitimacy of implementing and carrying out live working from the perspective of safety and health at work, critically analyses accidents that happen at work in a de-energized state and arguments the goals of implementing live work as work with “zero injuries”. Organisations with an integrated management system have excellent organisational conditions for safe implementation of live work and can therefore achieve the goal “zero defects” or the idea “zero accidents” or “zero injuries” at work due to electrical shock.
{"title":"Live working as an example of electrical installation maintenance with the zero accidents philosophy","authors":"V. Lovrenčič, B. Gomišček","doi":"10.1109/ICOLIM.2014.6934344","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934344","url":null,"abstract":"Live working can be considered a contribution to safety at work, as it is an example of electrical installation maintenance with the zero accidents philosophy. The purpose of this paper is to promote the concepts of maintenance work without accidents or with “zero accidents”. Live working can be identified as an unquestionable foundation of business excellence. This paper introduces the legitimacy of implementing and carrying out live working from the perspective of safety and health at work, critically analyses accidents that happen at work in a de-energized state and arguments the goals of implementing live work as work with “zero injuries”. Organisations with an integrated management system have excellent organisational conditions for safe implementation of live work and can therefore achieve the goal “zero defects” or the idea “zero accidents” or “zero injuries” at work due to electrical shock.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"177 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130003371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-21DOI: 10.1109/ICOLIM.2014.6934392
C. Didier, G. Heroin
Low-voltage live working on electrical networks has been carried out in France since the 1960s. The Working Conditions (WCs) that cover these working activities are updated regularly to take account of lessons learned in the field. This article presents an overview of the improvement process that led to a revision of the low-voltage Working Conditions in 2013: an operating experience system and progress axes identified; a innovative method in the service of the operator and his local supervisor; the implication of all stakeholders for accompanying change.
{"title":"Revision of the rules for carrying out low-voltage live working on electrical networks","authors":"C. Didier, G. Heroin","doi":"10.1109/ICOLIM.2014.6934392","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934392","url":null,"abstract":"Low-voltage live working on electrical networks has been carried out in France since the 1960s. The Working Conditions (WCs) that cover these working activities are updated regularly to take account of lessons learned in the field. This article presents an overview of the improvement process that led to a revision of the low-voltage Working Conditions in 2013: an operating experience system and progress axes identified; a innovative method in the service of the operator and his local supervisor; the implication of all stakeholders for accompanying change.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"1940 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129289514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-21DOI: 10.1109/ICOLIM.2014.6934388
H. Schau
The box test according to IEC/EN 61482-1-2 is one of the internationally harmonized test methods for textile material and protective clothing for arc flash protection. The standard is now under maintenance in an IEC TC 78 Project Team. In the frame of this work, among others, a round-robin-test was made for analyzing the reproducibility and repeatability of the test method. In the paper the results of this work are presented. Furthermore, the paper reports on laboratory measurements aimed to consider the influences of variations of the box test parameters on the electric and thermal arc energy. Main focus is the time and current dependency of the electric arc energy as well as the direct exposure incident energy. On this base the relationship between electric arc energy and incident energy is derived, allowing conclusions on PPE test energy levels in case of deviations from the standard conditions (class 1 and 2) as well as conclusions on arc exposures at real work places for risk assessment and PPE selection.
{"title":"Reproducibility of the box test according to EN 61482-1-2 and influences on the test energy parameters","authors":"H. Schau","doi":"10.1109/ICOLIM.2014.6934388","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934388","url":null,"abstract":"The box test according to IEC/EN 61482-1-2 is one of the internationally harmonized test methods for textile material and protective clothing for arc flash protection. The standard is now under maintenance in an IEC TC 78 Project Team. In the frame of this work, among others, a round-robin-test was made for analyzing the reproducibility and repeatability of the test method. In the paper the results of this work are presented. Furthermore, the paper reports on laboratory measurements aimed to consider the influences of variations of the box test parameters on the electric and thermal arc energy. Main focus is the time and current dependency of the electric arc energy as well as the direct exposure incident energy. On this base the relationship between electric arc energy and incident energy is derived, allowing conclusions on PPE test energy levels in case of deviations from the standard conditions (class 1 and 2) as well as conclusions on arc exposures at real work places for risk assessment and PPE selection.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116145798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-21DOI: 10.1109/ICOLIM.2014.6934366
R. Horstink
UE Systems manufactures and supports ultrasound instruments used for condition monitoring and energy conservation programs. The famous Ultraprobe series is the industry standard for ultrasonic inspection. These portable instruments are among other applications used to inspect, locate diagnose & trend electrical discharge on electrical apparatus. Identify early warning & locate electrical faults such as arcing, tracking and corona. Inspection results are enhanced with data management and spectral analysis software. With a knowledge base in ultrasonic detection that spans over 30 years, they have standardized many procedures that are currently being used in plants throughout the industrial world. This information is shared with clients through their field support group and through highly acclaimed training courses. Their Level I and Level II courses for certification in airborne/structure borne ultrasound meet the intent of NDT testing standards and are offered throughout the year in many locations nationally and internationally. They also conduct training courses in steam trap inspection and in Program Implementation for ultrasound inspection and data management. You are invited to visit UE Systems web site. The UE Systems website contains more than just product information. Technical information to assist in documenting and calculating energy loss, trending mechanical issues and typical fault sounds related to steam, electrical and mechanical conditions are to be found there along with articles, newsletters and webinars: www.uesystems.eu.
{"title":"How ultrasound can detect electrical discharge non-invasively and help eliminate arc flash incidents","authors":"R. Horstink","doi":"10.1109/ICOLIM.2014.6934366","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934366","url":null,"abstract":"UE Systems manufactures and supports ultrasound instruments used for condition monitoring and energy conservation programs. The famous Ultraprobe series is the industry standard for ultrasonic inspection. These portable instruments are among other applications used to inspect, locate diagnose & trend electrical discharge on electrical apparatus. Identify early warning & locate electrical faults such as arcing, tracking and corona. Inspection results are enhanced with data management and spectral analysis software. With a knowledge base in ultrasonic detection that spans over 30 years, they have standardized many procedures that are currently being used in plants throughout the industrial world. This information is shared with clients through their field support group and through highly acclaimed training courses. Their Level I and Level II courses for certification in airborne/structure borne ultrasound meet the intent of NDT testing standards and are offered throughout the year in many locations nationally and internationally. They also conduct training courses in steam trap inspection and in Program Implementation for ultrasound inspection and data management. You are invited to visit UE Systems web site. The UE Systems website contains more than just product information. Technical information to assist in documenting and calculating energy loss, trending mechanical issues and typical fault sounds related to steam, electrical and mechanical conditions are to be found there along with articles, newsletters and webinars: www.uesystems.eu.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116770503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-21DOI: 10.1109/ICOLIM.2014.6934379
G. Florea, E. Mateescu, M. Oltean, M. Florea, M. Vaju, L. Lipan
The concept of the damping pendulum as torsional damper and detuner (TDD) was created and reported in 1993 by its authors led by Prof. Jean-Louis Lilien from University of Liege- Belgium. Several versions were designed, tested and even used in some minor projects, demonstrating their high capacity to solve the risk of the overhead line conductor galloping with usual frequencies in the range 0.4-0.6 Hz. The parameter describing the damping performance is the transfer function with values in the range 1.52.5 in the case of the previous versions. The new version transfer function came to 3.0, the best met value till now. A description of the pendulum parts, tests carried out and the final design are presented. The pendulum can be easy mounted in Iive-line conditions.
{"title":"The best damper of the conductor galloping as the tests confirm, the torsion and detuning damper type TDD 2.3- RO is developed and already mounted on 400 kV lines by live-line procedures in 2013","authors":"G. Florea, E. Mateescu, M. Oltean, M. Florea, M. Vaju, L. Lipan","doi":"10.1109/ICOLIM.2014.6934379","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934379","url":null,"abstract":"The concept of the damping pendulum as torsional damper and detuner (TDD) was created and reported in 1993 by its authors led by Prof. Jean-Louis Lilien from University of Liege- Belgium. Several versions were designed, tested and even used in some minor projects, demonstrating their high capacity to solve the risk of the overhead line conductor galloping with usual frequencies in the range 0.4-0.6 Hz. The parameter describing the damping performance is the transfer function with values in the range 1.52.5 in the case of the previous versions. The new version transfer function came to 3.0, the best met value till now. A description of the pendulum parts, tests carried out and the final design are presented. The pendulum can be easy mounted in Iive-line conditions.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123550562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-21DOI: 10.1109/ICOLIM.2014.6934378
Icaro Igor C. De M. Barros, Uilson V. da Silva
This article presents the live-line work technique, which has been developed to change the type of a tower from suspension to tension. It was necessary to allow the sectioning of the 138 kV Overhead Power Distribution Line. This allows to power a new industrial consumer in a new double circuit, without interruption of the supply of an industrial customer already in operation connected to the 138 kV Overhead Power Distribution Line. Stages of planning and implementation are detailed in this article, with particular attention to the adopted safety measures adopted for the successful development of the activity.
{"title":"Supplying power to a new industrial consumer a new work technique in live-line developed to change the type of towers","authors":"Icaro Igor C. De M. Barros, Uilson V. da Silva","doi":"10.1109/ICOLIM.2014.6934378","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934378","url":null,"abstract":"This article presents the live-line work technique, which has been developed to change the type of a tower from suspension to tension. It was necessary to allow the sectioning of the 138 kV Overhead Power Distribution Line. This allows to power a new industrial consumer in a new double circuit, without interruption of the supply of an industrial customer already in operation connected to the 138 kV Overhead Power Distribution Line. Stages of planning and implementation are detailed in this article, with particular attention to the adopted safety measures adopted for the successful development of the activity.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"236 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121869941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-21DOI: 10.1109/ICOLIM.2014.6934387
M. S. Silva, A. P. Nóbrega, T. F. Guth, R. Menezes
Electricity distribution systems based on aerial networks are susceptible to transient or permanent failures that can interrupt power supply in affected sections of the grid. In recent years, there has been great concern in Brazil over the need to modernize the supervision and control systems of electric utilities, leading to huge engineering efforts and significant investments in automation. The automation of power distribution networks contributes to improving quality indicators by isolating faulty sections of the grid through remote controls for opening and closing devices, as well as by transferring non-faulty sections to alternative supply sources. This paper presents the results of a statistical study carried out in a sample of a system already implemented in a power distributor that compares quality gains achieved through the Structural Logframe (Matriz Logica Estrutural - MLE) methodology and applies a multi-criteria decision model to use in Live Working area.
{"title":"Evaluating the implementation of automatic recomposition systems on electricity distribution networks in Brazil","authors":"M. S. Silva, A. P. Nóbrega, T. F. Guth, R. Menezes","doi":"10.1109/ICOLIM.2014.6934387","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934387","url":null,"abstract":"Electricity distribution systems based on aerial networks are susceptible to transient or permanent failures that can interrupt power supply in affected sections of the grid. In recent years, there has been great concern in Brazil over the need to modernize the supervision and control systems of electric utilities, leading to huge engineering efforts and significant investments in automation. The automation of power distribution networks contributes to improving quality indicators by isolating faulty sections of the grid through remote controls for opening and closing devices, as well as by transferring non-faulty sections to alternative supply sources. This paper presents the results of a statistical study carried out in a sample of a system already implemented in a power distributor that compares quality gains achieved through the Structural Logframe (Matriz Logica Estrutural - MLE) methodology and applies a multi-criteria decision model to use in Live Working area.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126611945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-21DOI: 10.1109/ICOLIM.2014.6934354
Hyung-kwon Lee, Ho-Kwon Lee, Hoi-Gon Koo
There are two types of the 765kV transmission line(hereinafter T/L), namely double and single circuit lines. But the single circuit line has no fungible line, so dead line work is very difficult. Moreover it's very hard to set a no-power day for maintenance of the line also. Due to such reasons the 765kV single circuit T/L will be maintained by live line work using bare-handing method and helicopter live working. But in case of the bare-hand method, it's difficult to approach conductors from tower posts because of the complicated tower structures with many step bolts and configuration. Especially tower arm length is very long. So in order to access to the live parts easily on the towers, this paper presents the stepping pendulum method by using two polymer insulator strings or two insulating supports. Moreover this paper proposes application propriety of the stepping pendulum method to long arms in UHV lines.
{"title":"Application of the stepping pendulum method to long tower arms in 765kV transmission line for live working","authors":"Hyung-kwon Lee, Ho-Kwon Lee, Hoi-Gon Koo","doi":"10.1109/ICOLIM.2014.6934354","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934354","url":null,"abstract":"There are two types of the 765kV transmission line(hereinafter T/L), namely double and single circuit lines. But the single circuit line has no fungible line, so dead line work is very difficult. Moreover it's very hard to set a no-power day for maintenance of the line also. Due to such reasons the 765kV single circuit T/L will be maintained by live line work using bare-handing method and helicopter live working. But in case of the bare-hand method, it's difficult to approach conductors from tower posts because of the complicated tower structures with many step bolts and configuration. Especially tower arm length is very long. So in order to access to the live parts easily on the towers, this paper presents the stepping pendulum method by using two polymer insulator strings or two insulating supports. Moreover this paper proposes application propriety of the stepping pendulum method to long arms in UHV lines.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132097647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：