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The Myth of 'Aging' Pole Tower Infrastructure on Long-Term Reliability: Why Quality Manufacturing is a Far More Important Factor!

机译:长期可靠性的“老龄化”杆和塔基础设施的神话:为什么优质的制造是一个更重要的因素!

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We hear an almost constant reference to "Aging Utility Infrastructure" these days. The recent events with the power grid possibly initiating the California wildfire damage have inevitably began to put an entirely new focus on the structural reliability of our electrical T&D infrastructure. Everyone, including Regulators, will likely be looking more critically at this infrastructure in the future, and trying to determine what the long-term ramifications might be if failures occur on parts of this infrastructure. The latest ASCE Infrastructure Report Card has again assigned the Energy Industry a D+ grade primarily due to it "Aged" infrastructure. For sure, everything (including people) deteriorate with age. But is "Age" really the issue we should prioritize our efforts around when it comes to addressing long-term structural performance and reliability of our Pole and Tower assets? In our experience, "Quality", not "Age" should be the primary consideration in the assessment of structural integrity and reliability. We likely all know of structural defects or failures that have happened within the first few years following installation, and at loads well below those the assets are being designed to resist. It is also likely that we know of similar assets that have not failed after more than 60+ years of reliable service. What was the difference? Most likely the newer assets had an undetected "quality escape" during initial manufacture of those assets which caused the problem. A "quality escape" is an asset released by a supplier that is subsequently determined to be nonconforming to a purchase contract and/or product specification requirements. When the applicable codes, standards, and specifications are clearly and unambiguously met, or better yet, exceeded, we end up with far more reliable, and higher quality assets that will perform as expected over the long-term. To most effectively improve long-term O&M programs, most Utilities would be well served to put age of assets aside and focus more on initial asset quality. Applying more resources into critically improving specifications and diligently monitoring initial manufacturing quality of the poles, towers, and other equipment being purchased will help improve asset quality and reduce "quality escapes". As well, such focus will provide dramatic improvements in overall long-term reliability of a system and will serve to reduce unexpected maintenance and repair costs of these assets over the long-term.
机译:我们这些天听到了“老化效用基础设施”的几乎不断提及。最近可能启动加州野火损坏的电网的事件不可避免地开始对电气T&D基础设施的结构可靠性进行完全新的重点。在包括监管机构在内的每个人都可能在这个基础架构中更为批判,并试图确定如果发生故障发生在这部分基础架构的情况下可能是什么。最新的ASCE基础设施报告卡再次将能源行业分配为D +等级,主要是由于它是“老化”基础设施。肯定,一切(包括人)随着年龄恶化而恶化。但是,“年龄”真的是我们应该在解决我们杆和塔资产的长期结构性能和可靠性时,我们应该优先考虑我们的努力?在我们的经验中,“质量”,而不是“年龄”应该是对结构完整性和可靠性评估的主要考虑因素。我们普遍了解在安装后的前几年内发生的结构缺陷或故障,并且在低于这些资产以抵抗的负载。我们也可能知道在超过60多年的可靠服务后没有失败的类似资产。有什么区别?最有可能在初始制造造成此问题的资产的初始制造期间具有未调配的“质量逃逸”。 “质量逃生”是供应商发布的资产,随后被确定为不符合购买合同和/或产品规范要求。当适用的代码,标准和规格明确而明确达到或更好,超过,我们最终会更加可靠,更高质量的资产,这些资产将从长期的预期执行。为了大量有效地改善长期O&M计划,大多数公用事业公司将在一边将资产增长放在一边,并更多地关注初始资产质量。将更多资源应用于批判性提高规范,并努力监控杆子,塔楼和购买的其他设备的初始制造质量,将有助于提高资产质量,减少“质量逃脱”。此外,这种重点将为系统的整体长期可靠性提供急剧改进,并将有助于减少长期内这些资产的意外维护和维修费用。

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