Figure 2-15.—Electrical site plan.Figure 2-15 shows a simple electrical site plan. Thisplan shows the routing of a new 13.8-kilovolt (kV)primary service line to a new dining facility. The newservice is tapped to an existing 13.8-kV overheadprimary feeder, runs down existing pole Number 126,and then runs underground to a new pad-mounted75-kilovoltampere (kVA) transformer located next tothe new facility.Although a competent Construction Electrician orcontractor could install this new service line from onlythe site plan, as shown in figure 2-15, he would have toprepare additional drawings or sketches to show hisworkmen the specific details of the construction.Therefore, to provide a better description of theinstallation, the electrical designer prepares additionalelectrical details.Electrical DetailsThe purpose of details is to leave little doubt aboutthe exact requirements of a construction job. In pre-paring the details for the installation shown in figure2-15, the designer chose to begin at the existing pole andwork towards the new transformer pad. Figure 2-16 is adetail of the existing pole. This detail leaves little doubtabout the requirements at the pole. For example, itshows the existing pole, crossarm, the existing 13.8-kVfeeder, and required clearance distances. It also showsthat the new circuit taps the existing conductors and then2-12
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
