Electricity meters. Domestic electricity equipment mounted on a wall. There are three types of meters here, ranging from the oldest (lower right, with
Electricity meters. Domestic electricity equipment mounted on a wall. There are three types of meters here, ranging from the oldest (lower right, with pointer dials) to the next oldest (centre, with a cylindrical number display) to the newest (centre right, white, with a liquid crystal display). They all measure the electricity used in kilowatts per hour (kWh), a measure of the energy used. Other electrical equipment includes a fuse box (upper left). Fuses break overloaded electrical circuits. The residual current device (RCD, centre left) is a newer type of fuse that trips (switches off) an overloaded circuit. It can be switched back on, unlike a fuse, which has to be replaced.
Size: 3612px × 4887px
Photo credit: © CORDELIA MOLLOY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: -generation, amount, basement, box, cellar, changing, charging, contrast, crystal, current, cylindrical, device, dial, digital, display, domestic, electrical, electricity, energy, equipment, fuse, fuses, generation, historical, history, household, industry, instrument, instruments, lcd, liquid, measuring, meter, meters, modern, newer, older, oldest, paying, physics, pointer, pointers, power, progress, rcd, replacement, replacements, replacing, residual, technological, technology, tumbler, type, types, updated, wall
