Pub Date : 2014-05-21DOI: 10.1109/ICOLIM.2014.6934380
K. Petchsanthad
This paper describes the LW experienced on EGAT transmission line, the development and implementation of LW including training programs for the live line maintenance team through EGAT Lineman Training School. EGAT has extensive experience with LW using the Insulating tool and Bare-hand (contact) technique on conventional up-to 500 kV lines. EGAT also has the plan to develop LW technique suit to the constraints on the tower configuration and tower window clearances as well as the unseen problem on insulator string cause by bird drop as the previous serious experienced as well. Facing the new challenge, EGAT engineers carefully considered the suitable and sound methodology for the line maintenance by study about the innovative technique that success perform in many country to select the safe and more safe method that accept by the LW team. The lineman training school was set up for the actual training program for the new technique especially the LW training site for actual simulation in each safety scenario before the actual practical training program. The paper show the overall actual development in LW activity in Thailand such as type of LW, LW activity, live working in-house development and training program under EGAT lineman training school. Finally the summary overall actual LW activity and the future development plan of the new LW activity for EGAT in THAILAND shall be present as well.
{"title":"Live working practices & development for EGAT overhead line in Thailand","authors":"K. Petchsanthad","doi":"10.1109/ICOLIM.2014.6934380","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934380","url":null,"abstract":"This paper describes the LW experienced on EGAT transmission line, the development and implementation of LW including training programs for the live line maintenance team through EGAT Lineman Training School. EGAT has extensive experience with LW using the Insulating tool and Bare-hand (contact) technique on conventional up-to 500 kV lines. EGAT also has the plan to develop LW technique suit to the constraints on the tower configuration and tower window clearances as well as the unseen problem on insulator string cause by bird drop as the previous serious experienced as well. Facing the new challenge, EGAT engineers carefully considered the suitable and sound methodology for the line maintenance by study about the innovative technique that success perform in many country to select the safe and more safe method that accept by the LW team. The lineman training school was set up for the actual training program for the new technique especially the LW training site for actual simulation in each safety scenario before the actual practical training program. The paper show the overall actual development in LW activity in Thailand such as type of LW, LW activity, live working in-house development and training program under EGAT lineman training school. Finally the summary overall actual LW activity and the future development plan of the new LW activity for EGAT in THAILAND shall be present as well.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"1 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":"116701123","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.2014.6934343
L. Barbieri, R. Malgesini, A. Villa, G. De Donà, C. D. Milanello, A. Zanotti
The use of insulated aerial vehicles (IAVs) allows to carry out many live line maintenance (LLM) tasks efficiently. From a safety perspective, the approach distances must be taken into account. According to the standard IEC-61472, the IAVs must be considered as large metallic floating objects and specific tests and studies must be carried out to determine the dielectric strength. This paper covers the Italian practice for the use of IAVs in the LLM context. It includes some specific studies to verify the safety conditions of this kind of maintenance operations. The study is based on a solid experimental background and treats several tests carried out in high voltage laboratories. The tests take into account most of the configurations encountered. Moreover computing codes, specifically developed, have been used to determine the most critical configurations and to support the experimental results.
{"title":"Insulated aerial vehicles and high voltage live working in Italy: tests and studies to assess the safety aspects","authors":"L. Barbieri, R. Malgesini, A. Villa, G. De Donà, C. D. Milanello, A. Zanotti","doi":"10.1109/ICOLIM.2014.6934343","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934343","url":null,"abstract":"The use of insulated aerial vehicles (IAVs) allows to carry out many live line maintenance (LLM) tasks efficiently. From a safety perspective, the approach distances must be taken into account. According to the standard IEC-61472, the IAVs must be considered as large metallic floating objects and specific tests and studies must be carried out to determine the dielectric strength. This paper covers the Italian practice for the use of IAVs in the LLM context. It includes some specific studies to verify the safety conditions of this kind of maintenance operations. The study is based on a solid experimental background and treats several tests carried out in high voltage laboratories. The tests take into account most of the configurations encountered. Moreover computing codes, specifically developed, have been used to determine the most critical configurations and to support the experimental results.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"1051 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":"116281915","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.2014.6934352
Z. Bertalan, Z. Csedő, Z. A. Tamus
Live Line Maintenance has been developed due to its technical benefits: by the application of this maintenance method the number and duration of interruptions in the transmission system are also decreased. After the liberalization and integration of electricity markets, beside the technical advantages the economic benefits have become more determinant driver of this technology since the capacity of cross-border transmission lines are limited. Several studies have revealed economic benefits of electricity market coupling, which increases social welfare, but shipping of electric energy between coupled markets is still limited by the cross-border capacity. Long time ago cross-border lines have been constructed for emergency considerations with negligible market aspects. Cut-off cross-border lines for maintenance decreases the transfer capacity causing further distortion on each market, therefore a simple maintenance on these lines can decrease social welfare. In this paper, the authors introduce the effect of electricity market coupling on social welfare emphasizing the role of transfer capacity, which acts on market prices of interconnected countries. Social welfare gain resulting from live line maintenance of Hungarian cross-border interconnection lines has been investigated.
{"title":"Social welfare and Live Line Maintenance","authors":"Z. Bertalan, Z. Csedő, Z. A. Tamus","doi":"10.1109/ICOLIM.2014.6934352","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934352","url":null,"abstract":"Live Line Maintenance has been developed due to its technical benefits: by the application of this maintenance method the number and duration of interruptions in the transmission system are also decreased. After the liberalization and integration of electricity markets, beside the technical advantages the economic benefits have become more determinant driver of this technology since the capacity of cross-border transmission lines are limited. Several studies have revealed economic benefits of electricity market coupling, which increases social welfare, but shipping of electric energy between coupled markets is still limited by the cross-border capacity. Long time ago cross-border lines have been constructed for emergency considerations with negligible market aspects. Cut-off cross-border lines for maintenance decreases the transfer capacity causing further distortion on each market, therefore a simple maintenance on these lines can decrease social welfare. In this paper, the authors introduce the effect of electricity market coupling on social welfare emphasizing the role of transfer capacity, which acts on market prices of interconnected countries. Social welfare gain resulting from live line maintenance of Hungarian cross-border interconnection lines has been investigated.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"55 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":"121335996","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.2014.6934389
Mario Angel Ramos
This paper presents the steps performed in Edenor to prevent incidents caused by failure of tools and equipment used in Live Working and the development of new ideas aimed at establishing methods of equipment's inspection and control in a systematic basis.
{"title":"How to avoid failures on tools and equipment used in LW? The preventive control","authors":"Mario Angel Ramos","doi":"10.1109/ICOLIM.2014.6934389","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934389","url":null,"abstract":"This paper presents the steps performed in Edenor to prevent incidents caused by failure of tools and equipment used in Live Working and the development of new ideas aimed at establishing methods of equipment's inspection and control in a systematic basis.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"18 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":"129901661","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.2014.6934371
Paul Komaromi
Electrical power continues to be the economic lifeblood of cities in the 21st century as customers continue to demand an increase in reliable electrical power from their utility supply company. The delivery of this service can often be measured as being successful only if it has a workforce that is trained, skilled and committed. At the same time a company's safety performance can also be measured through well trained staff and the correct application of the knowledge that they have gained. Fundamental importances are to encourage trade's staff to work at their peak which is most likely achieved by the company providing skill / knowledge upgrades from time to time. This allows the workers to perform to the highest level of safety, to be proficient in all tasks, in addition to crews becoming notably more efficient. With Live Line training being continually in demand, we have built fundamental components into the work methods during training, establishing a solid foundation and commonalities for the three methods of live line work. This has allowed the Powerline workers to further demonstrate their competencies and skills through measured performance indicators and observable improvements in safety awareness. This presentation will attempt to provide a study on operational excellence. This presentation will attempt to provide a study on operational excellence.
{"title":"Maintaining system reliability through training strategy initiatives","authors":"Paul Komaromi","doi":"10.1109/ICOLIM.2014.6934371","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934371","url":null,"abstract":"Electrical power continues to be the economic lifeblood of cities in the 21st century as customers continue to demand an increase in reliable electrical power from their utility supply company. The delivery of this service can often be measured as being successful only if it has a workforce that is trained, skilled and committed. At the same time a company's safety performance can also be measured through well trained staff and the correct application of the knowledge that they have gained. Fundamental importances are to encourage trade's staff to work at their peak which is most likely achieved by the company providing skill / knowledge upgrades from time to time. This allows the workers to perform to the highest level of safety, to be proficient in all tasks, in addition to crews becoming notably more efficient. With Live Line training being continually in demand, we have built fundamental components into the work methods during training, establishing a solid foundation and commonalities for the three methods of live line work. This has allowed the Powerline workers to further demonstrate their competencies and skills through measured performance indicators and observable improvements in safety awareness. This presentation will attempt to provide a study on operational excellence. This presentation will attempt to provide a study on operational excellence.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"50 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":"134589704","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.2014.6934341
Luis Neira, H. Pascual, Martin Portillo, Francisco Perez, A.A. Albanese, O.A. Fata, Rodrigo Franchini, A. Burna, Ivan Stivanello
This work presents the research being undertaken by the regional faculties of Concordia and La Plata of the Universidad Tecnológica Nacional, regarding conductive garments used in Live Working. We have researched the behavior of the different options provided by the market and what possible changes could be done so that they became more comfortable without compromising shielding conditions. We worked both on new and used clothes with different degrees of wearing, and conductivity and shielding measurements were made in the presence of intense electric and magnetic fields. At this stage of the research, it was established an interesting correlation between the composition of each garment and the shielding that it provides, which represents a very important contribution to manufacturers and users. In light of the results obtained and given that the current garments only protect against electric fields, we have began to work with the aim of achieving some shielding as well against Magnetic Fields. In this sense, we are working on paints containing carbon nanotubes (CNT) to verify what degree of shielding against Magnetic Fields could provide these new materials.
{"title":"A research on conductive clothing for life working","authors":"Luis Neira, H. Pascual, Martin Portillo, Francisco Perez, A.A. Albanese, O.A. Fata, Rodrigo Franchini, A. Burna, Ivan Stivanello","doi":"10.1109/ICOLIM.2014.6934341","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934341","url":null,"abstract":"This work presents the research being undertaken by the regional faculties of Concordia and La Plata of the Universidad Tecnológica Nacional, regarding conductive garments used in Live Working. We have researched the behavior of the different options provided by the market and what possible changes could be done so that they became more comfortable without compromising shielding conditions. We worked both on new and used clothes with different degrees of wearing, and conductivity and shielding measurements were made in the presence of intense electric and magnetic fields. At this stage of the research, it was established an interesting correlation between the composition of each garment and the shielding that it provides, which represents a very important contribution to manufacturers and users. In light of the results obtained and given that the current garments only protect against electric fields, we have began to work with the aim of achieving some shielding as well against Magnetic Fields. In this sense, we are working on paints containing carbon nanotubes (CNT) to verify what degree of shielding against Magnetic Fields could provide these new materials.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"314 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":"116352395","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.2014.6934328
E. Marshall
The Eskom transmission network comprises of some 30 000 kilometres of HV and EHV overhead transmission line ranging in voltage from 220 kV to 765 kV AC and 533 kV DC. Quality and continuity of supply and network outage constraints requires the use of live line maintenance techniques to achieve required network performance and circuit availability. Stick and bare hand techniques using insulated ladders, insulated aerial platforms, rope hoisting methods and helicopters are utilised to gain access to live conductors and structures to carry out essential preventative maintenance. Tools and techniques have been developed and optimised for local conditions and designs, based on maintenance requirements and available resources.
{"title":"Eskom transmission live line maintenance techniques and practices","authors":"E. Marshall","doi":"10.1109/ICOLIM.2014.6934328","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934328","url":null,"abstract":"The Eskom transmission network comprises of some 30 000 kilometres of HV and EHV overhead transmission line ranging in voltage from 220 kV to 765 kV AC and 533 kV DC. Quality and continuity of supply and network outage constraints requires the use of live line maintenance techniques to achieve required network performance and circuit availability. Stick and bare hand techniques using insulated ladders, insulated aerial platforms, rope hoisting methods and helicopters are utilised to gain access to live conductors and structures to carry out essential preventative maintenance. Tools and techniques have been developed and optimised for local conditions and designs, based on maintenance requirements and available resources.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"6 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":"128521827","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.2014.6934374
A. Cardoso
CME, Leadership, Integrity, Professionalism and Respect are words that are “confused” with the daily life of the Company, and values which favor a strong presence in the market of engineering design, construction, operation of facilities and infrastructure, and also, the training activity.The implementation of Live Line Maintenance in the CME Group began in 1989 covering both overhead and underground low voltage networks in the city of Lisbon, evolving afterwards to higher voltage levels. CME has a Training Center, located in the center of Portugal, which has unique facilities deployed in an area of 15,000 m2, able to train crews from low level tensions up to very high tension. This article intends to explain the facilities of the training center, and how we select and train our live line crews.
{"title":"Live line works training center","authors":"A. Cardoso","doi":"10.1109/ICOLIM.2014.6934374","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934374","url":null,"abstract":"CME, Leadership, Integrity, Professionalism and Respect are words that are “confused” with the daily life of the Company, and values which favor a strong presence in the market of engineering design, construction, operation of facilities and infrastructure, and also, the training activity.The implementation of Live Line Maintenance in the CME Group began in 1989 covering both overhead and underground low voltage networks in the city of Lisbon, evolving afterwards to higher voltage levels. CME has a Training Center, located in the center of Portugal, which has unique facilities deployed in an area of 15,000 m2, able to train crews from low level tensions up to very high tension. This article intends to explain the facilities of the training center, and how we select and train our live line crews.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"18 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":"134598947","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.2014.6934349
Z. Bertalan, J. Kiss, Z. A. Tamus
The practical application of Live Line Work was started in the '60s and since that time, this technology has become a general practice in the maintenance of the Hungarian transmission network. The technical advantages of the technology - e.g. consumers not suffering from loss of supply - are not questionable nowadays, however improvement and development of the live line maintenance technologies are not only technical issue, since economic analysis of live works can help to reveal its weak points.
{"title":"Technical economic feasibility study on Live Line maintenance on Hungarian transmission network","authors":"Z. Bertalan, J. Kiss, Z. A. Tamus","doi":"10.1109/ICOLIM.2014.6934349","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934349","url":null,"abstract":"The practical application of Live Line Work was started in the '60s and since that time, this technology has become a general practice in the maintenance of the Hungarian transmission network. The technical advantages of the technology - e.g. consumers not suffering from loss of supply - are not questionable nowadays, however improvement and development of the live line maintenance technologies are not only technical issue, since economic analysis of live works can help to reveal its weak points.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"69 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":"116397650","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.2014.6934333
M. Oltean, T. Fagarasan, Dorin Lucian Brabete
The Live Working techniques on overhead lines are already a common place in Romanian Transmission Grid. From 1979 a lot of maintenance works where done in Live technologies. From insulators replacement to complex reparation works where done on 400 and 220kV OHL. New technologies where developed in the last period, such as replacement of anchors, mounting of monitoring systems, mounting of line arresters, replacement of ground wire, etc. From this to overlaying almost all maintenance works needed on maintenance projects of OHL's it is a small step. The paper presents actual and possible works in Live technologies for refurbishing OHLs. From common practices to modern new technologies (including robots) all Live methods should be included in maintenance to avoid the deenergizing of the line. The new tools and technologies developed in the world are taken into consideration. Finally almost all maintenance works can be done without deenergizing the line.
{"title":"Complete solutions for LW maintenance of high voltage OHL","authors":"M. Oltean, T. Fagarasan, Dorin Lucian Brabete","doi":"10.1109/ICOLIM.2014.6934333","DOIUrl":"https://doi.org/10.1109/ICOLIM.2014.6934333","url":null,"abstract":"The Live Working techniques on overhead lines are already a common place in Romanian Transmission Grid. From 1979 a lot of maintenance works where done in Live technologies. From insulators replacement to complex reparation works where done on 400 and 220kV OHL. New technologies where developed in the last period, such as replacement of anchors, mounting of monitoring systems, mounting of line arresters, replacement of ground wire, etc. From this to overlaying almost all maintenance works needed on maintenance projects of OHL's it is a small step. The paper presents actual and possible works in Live technologies for refurbishing OHLs. From common practices to modern new technologies (including robots) all Live methods should be included in maintenance to avoid the deenergizing of the line. The new tools and technologies developed in the world are taken into consideration. Finally almost all maintenance works can be done without deenergizing the line.","PeriodicalId":238060,"journal":{"name":"2014 11th International Conference on Live Maintenance (ICOLIM)","volume":"7 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":"129284655","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}
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