ensto today | THE WAY WE WORK Incentive for More Reliable Networks Ensto grants three-year extensions on guarantees for underground cable joints and terminations when the installer is certified by Ensto. Riina Silvennoinen Markus Sotikov Cae num doluptiur, ut faccus aut et maio es necatem volorrum simi, odit volupta perae ex enectemodi ipicipid maio ommoluptis mi, culparibus ex ex et, cuptates sunt, omni cus sum ut rernam et quae voluptae. 46 ENSTO TODAY 1/2016 PKS Sähkönsiirto's Jukka Leppänen, Ensto's Markku Rantio and Enerke's Janne Huotari think the certification standards are comprehensive. Formerly, medium voltage cables were installed only by specializing installers. Today, cabling is part of the expertise of all installers. Installers find the certification very useful: it boosts their confidence and adds reliability to their work. Aremarkable share of the delivery breaks for an under-ground cable network is caused by installation faults of cables and cable accessories, says the Europacable Accessory Committee, a cooperative organization of cable manufacturers. The organization strives to find a solution for this increased problem via pan- European- and regional trainings, plus accreditations. “The number of installation errors has significantly increased in Central Europe,” says Markku Wederhorn, the President of Ensto Utility Networks and a member of Europacable. “This is probably because of the change of installer generations and thus the disappearance of existing know-how.” The influences of installation faults in this field are well recognized in Finland, too. It’s important for network companies to take care of their property and look for more accurate information on the prevalence of installation-based defects. No research-based material is publicly available, but some electricity companies in Finland have conducted their own studies, examining items that are in use now or that were disassembled during renovation projects. According to an investigation by the Aalto University School of Electrical Engineering, up to 50 percent of installations showed deviations from installation instructions. Certification project started in Finland As a pioneer in the field, Ensto has offered installation trainings for a long time. A next logical step was to develop an installer certification system for underground cable products. Markku Rantio, Sales Director, Ensto Utility Networks, is a member of the installer examination work group (subordinate to the Finnish National Board of Education), which creates examination questions and oversees the organization of installer examinations in Finland. “We thought that the same examination concept could be applied to the certification process. The same principle could be applied to installer training and certification could be obtained via a skills test, and this way we could ensure a high quality of work,” says Rantio.
EnstoToday 2016 No1 / ENG
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