Electrical Services

5. Clamp-on ammeters operate on the same principle as ______type CTs.
6. Most analog watt-hour meters have ______ dials.
9. This element is often abbreviated CT.
10. Diagram showing conduit and conductor sizes for service.
12. A group of CTs is typically used in services rated ______Amps and above.
13. Designed to distribute energy through branch circuits landed on breakers.
14. The meter plugs in to this component.
15. The NEC requirements for services can be found in

1. Underground power connection to electrical service.
2. The ___________ for a service drop should be a minimum of 13'6" above grade.
3. Overhead power connection to electrical service.
4. A metal enclosure containing factory mounted bare or insulated conductors, which are usually Cu or Al bars, rods or tubes.
7. 208Y/120V is a type of _________ phase service.
8. The ______ provides specifications for the location and wiring of CTs.
11. Grounding _________________ are sized using Table 250.66.