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It is the point where electric utilities provide power to their customers. [1] The customer connection to an underground distribution system is usually called a "service lateral". Conductors of a service drop or lateral are usually owned and maintained by the utility company, but some industrial drops are installed and owned by the customer. [2]
Commutated electric motors, such as universal motors, will run at reduced speed or reduced torque. Depending on the motor design, no harm may occur. However, under load, the motor may draw more current due to the reduced back-EMF developed at the lower armature speed. Unless the motor has ample cooling capacity, it may eventually overheat and ...
Commercial and residential customers are connected to the secondary distribution lines through service drops. Customers demanding a much larger amount of power may be connected directly to the primary distribution level or the subtransmission level. [2] General layout of electricity networks. The voltages and loadings are typical of a European ...
An electrical fault melts the fuse, and the device drops open to give a visual indication of trouble. Lineworkers can also manually open it while the line is energized using insulated hot sticks. In some cases, completely self-protected transformers are used, which have a circuit breaker built in, so a fused cutout isn't needed.
In North America, service drops provide 240/120 V split-phase power for residential and light commercial service, using cylindrical single-phase transformers. In Europe and most other countries, 230 V three phase (230Y400) service drops are used.
In 2022, a U.S. fire department responded to a fire somewhere in the country every 21 seconds on average. (NFPA – Fire Loss in the U.S.)A single home fire occurred every 88 seconds in 2022.