Final answer:
System voltages of 600 volts or less are classified as low voltages. These are safe for use in residential and commercial settings and are achieved by stepping down higher voltages used for long-distance transmission.
Step-by-step explanation:
System voltages of 600 volts or less are classified as low voltages or utilization voltages. This is the level at which electricity is typically provided for standard use in homes and businesses. Electricity at this voltage level powers common appliances and devices. It is reduced from higher voltages, which are used for transmission over long distances to limit energy losses, through transformers to the lower, safer voltages for end-user applications. For instance, electric power is generated at greater than 10 kV and transmitted at voltages over 200 kV, sometimes as much as 700 kV, but eventually, it is stepped down to 120, 240, or 480 V for residential and commercial use.