ELCAP: Measurement Plans and Equipment Installation

摘要

Based on the problems noted in the pilot study, it was apparent that several changes were needed. First, the procedures for preparing the measurement plan and installing the metering equipment have been expanded to provide a checklist for various task activities. Second, more illustrations have been placed in the procedures to show the configuration of the equipment and to identify various checkpoints in the FDAS. These checklists provide repetitive checks that allow some measure of contractor quality-control checking. Some additional procedures have also been generated. For example, if the measurement plan is altered by the installation team to overcome installation problems, such as changing the recommended current transformer (CT) size, an Installation Change Notice (ICN) form is completed. A standard load test was developed to catch installation problems, such as misoriented or misplaced CTs, improper scaling resistors, and CTs with reversed leads. This procedure requires the installation team to subject each CT to a known current. The CT output is then monitored via a communication link with a portable computer to determine if the same approximate current is observed. This information is typically sent over the dedicated telephone line to a portable computer at PNL, and provides the additional assurance that the communication link with the laboratory exists, and the system functions as planned. The installation contractor now provides an initial review and cost estimate for generating a measurement plan and completing the installation for each building. During this initial visit, various obstacles to completing the installation or metering program are listed by the contractor for review by PNL staff. If these obstacles are deemed to be excessive or to markedly increase the cost of the installation effort, the building will be rejected. (ERA citation 10:046456)