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2. Fuse (electrical) - Wikipedia

   en.wikipedia.org/wiki/Fuse_(electrical)

   Normal fast-blow fuses are the most general purpose fuses. A time-delay fuse (also known as an anti-surge or slow-blow fuse) is designed to allow a current which is above the rated value of the fuse to flow for a short period of time without the fuse blowing. These types of fuse are used on equipment such as motors, which can draw larger than ...

3. Distribution board - Wikipedia

   en.wikipedia.org/wiki/Distribution_board

   A distribution board (also known as panelboard, circuit breaker panel, breaker panel, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit breaker for each circuit in a common enclosure.

4. Circuit breaker - Wikipedia

   en.wikipedia.org/wiki/Circuit_breaker

   An early form of circuit breaker was described by Thomas Edison in an 1879 patent application, although his commercial power distribution system used fuses. [2] Its purpose was to protect lighting circuit wiring from accidental short circuits and overloads.

5. IEC 60269 - Wikipedia

   en.wikipedia.org/wiki/IEC_60269

   The first letter is a if the fuse is for short-circuit protection only; an associated device must provide overload protection. The first letter is g if the fuse is intended to operate even with currents as low as those that cause it to blow in one hour. These are considered general-purpose fuses for protection of wires.

6. Glossary of electrical and electronics engineering - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_electrical_and...

   In circuit theory, a hypothetical element that maintains a specified voltage between its terminals independent of the current through it. voltage spike A transient electrical voltage higher than normal appearing on an electrical supply. voltage-to-current converter A circuit that produces an output current proportional to an input voltage. volt ...

7. Electronic component - Wikipedia

   en.wikipedia.org/wiki/Electronic_component

   Fuse – over-current protection, one time use; Circuit breaker – resettable fuse in the form of a mechanical switch; Resettable fuse or PolySwitch – circuit breaker action using solid state device; Ground-fault protection or residual-current device – circuit breaker sensitive to mains currents passing to ground

8. Reference designator - Wikipedia

   en.wikipedia.org/wiki/Reference_designator

   A reference designator unambiguously identifies the location of a component within an electrical schematic or on a printed circuit board.The reference designator usually consists of one or two letters followed by a number, e.g. C3, D1, R4, U15.

9. AC power plugs and sockets: British and related types

   en.wikipedia.org/wiki/AC_power_plugs_and_sockets:...

   In this arrangement a cable connected to a fuse, or circuit breaker, in the distribution board was wired in sequence to a number of sockets before being terminated back at the distribution board, thus forming a final ring circuit. In the final ring circuit, each socket-outlet was supplied with current by conductors on both sides of the 'loop.'