The final element in the service entrance is the service panel. As stated earlier, the service panel performs two important functions: 1. It houses the overload protection components (circuit breakers in most cases, and fuses in older p. The final element in the service entrance is the service panel. As stated earlier, the service panel performs two important functions: 1. It houses the overload protection components (circuit breakers in most cases, and fuses in older panels) 2.It serves as the connection point between the main Feeder and Branch Circuits. A typical residential serv. The service drop illustrated in Figure 1has two 120V lines and a neutral conductor. The three lines may be independent conductors or housed in a three conductor cable called a triplex cable (As shown in the figure). Figure 1:A service Drop The three conductors comprising the service drop consist of two hotlines and one neutral. Each hotline as a po. There are two types of overhead service drops, mast, and clevis. A mast service drop is illustrated in Figure 3. The term Mast refers to the conduit and weather head that extend upward from the roof. The service drop is attached to the mast at the mast knob. Figure 3:Mast-type Service Drop The conduct Tails (or drip loops) serve two purposes. First. An underground service connection, or Service Lateral, is illustrated in Figure 5. The primary power lines pass through the conduit to the pad transformer input. The secondary power lines connect the transformer output to the electrical service meter. Figure 5:A service lateral Transformers are devices that are used to raise or lower a voltage leve. As stated earlier, the service meter measures the amount of energy that is used by the customer. Two electrical services meters are shown in Figure 6, one providing an analog display (rotary dials) and the other providing digital display. Figure 6: Analog Vs Digital Energy Meter The electrical service measures energy in Kilowatt-hours (kWh). A kilo.
