At the Service Entrance

摘要

There are some issues involving installations in the Na-tional Electrical Code (NEC) that regularly generate considerable misunderstanding for installers, inspectors and engineers. Recently, I was giving a workshop on the changes in the 2005 NEC, and as I was covering the change in Section 230.40, Exception No. 1, an attendee stated that a service drop or lateral could only supply one set of service-entrance conductors. He stated, furthermore, that the service could only have a maximum of six service disconnects, and all of these service disconnects must be grouped in one location. He now has a better understanding of the intricacies of the NEC on this issue, but I thought this subject was interesting enough to warrant another article and further explanation.