The Shaw Group's recent initial rejection of more than 200 steel embedments supplied to Georgia Power's $14-billion Plant Vogtle nuclear power project, sited near Waynesboro, Ga., is the latest in a series of quality-control lapses by various project suppliers.

作为项目质量保证的主要承包商,九月向核监管委员会(NRC)报告的Shaw报道,该委员会(NRC)的核查委员会托马斯维尔托马斯维尔托马斯维尔汇率的800多名势委员会的211份。没有通过承包商的初步安装质量检验。用于含有花费核燃料的建筑物,这些钢板大约为18英寸。通过18英寸,作为加强钢的连接点,用于转移载荷。

根据该报告,据称缺陷的嵌入含有各种各样的故障,包括“不可接受的焊接和焊接维修,缺少纳尔逊铆钉,损坏的尼尔森铆钉,不正确的绘画,尺寸不正确,尺寸和难以辨认的标记。”

我的211,136年被重新定义nto compliance at the site, 50 were returned to Cives, and another 25 were to be examined further, Shaw stated. The contractor said it would report its full findings by Nov. 6.

Shaw和NRC都表示,这种最新的材料问题不会影响施工时间表。

这不是项目第一次接受缺乏材料。2012年早些时候,Shaw Idented由Joseph Oat Corp.,Camden,N.J.附着于218个嵌入而产生的钢铁加固钢筋促进了218个嵌入式。同样,承包商在安装前识别了这些项目。

Joseph Oat rebutted Shaw's claims of noncompliance and argued that its product met all specifications. Tests showed the rebar's actual yield strength exceeded the specified yield strength by more than 18,000 psi.

Also earlier this year, Shaw rejected a small percentage of rebar provided by Gerdau Ameristeel, Tampa, Fla., for threading defects.

Shaw in Charlotte的高级副总裁Jeffrey Merrifield表示,供应商问题强调了在超过35年的美国建造美国第一个新核反应堆的挑战。困难建议公司,未使用的工作,缺乏对NRC标准的全面了解。

Merrifield说:“我们必须与供应商保持非常警惕,以确保他们提供的组件完全满足预期,并符合NRC要求。”

Merrifield, who previously served as an NRC commissioner, says some suppliers to the Vogtle project may need to improve their quality-assurance efforts.

"Our expectation would be that [these components] would've been put through a quality-assurance program that would've resulted in our getting items that are fully in compliance," Merrifield says. "There is a learning curve that we're dealing with right now."

The NRC says the identification of potentially non-compliant materials shows the project's inspection program is working.

“[Shaw]确定了这个问题并标记了它,”亚特兰大的NRC公共事务官Joey Ledford说。“甚至没有达到我们的检查人员在现场找到[问题]的观点。”

In August, Georgia Power Co. reported to the Georgia Public Service Commission that the estimated cost of the "original engineering, procurement and construction" of the project was $92 million less than projected at the time of the facility's certification. The utility estimated the total cost for project financing, the EPC contract and quality assurance at $6.2 billion, with the overall investment estimated at $14 billion. Vogtle's nuclear units are scheduled to be in service by November 2016 and November 2017, respectively.