This trench may have steep walls for the majority of the excavation but includes "bell holes" where it anticipated that workers will need to enter the trench. Another type uses a prefabricated shoring box that provides protection for workers. The trench box is moved as the work progresses ...
423 Meter Socket and Conduit Installation Detail for Primary Metered Service 424 Remote Meter Cabinet for primary metered service, 201 - 800A 425 Terminating Box or Section 426 Combination Terminating Box and Main Disconnect 429 Commercial CT Power and Control Cabinet, 400-800A 430 Current Transforme...
service conductors, underground – The underground conductors between the service point and the first point of connection to the service-entrance conductors in a terminal box, meter, or other enclosure, inside or outside the building wall (see Figure 1). service drop - The overhead conductors ...