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  2. 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.

  3. Circuit total limitation - Wikipedia

    en.wikipedia.org/wiki/Circuit_total_limitation

    The 1965 edition of the NEC, article 384-15 was the first reference to the circuit total limitation of panelboards. [1] As of 2008, the location of this language is at Article 408.54 now titled "Maximum Number of Overcurrent Devices."

  4. Wiring diagram - Wikipedia

    en.wikipedia.org/wiki/Wiring_diagram

    A set of wiring diagrams may be required by the electrical inspection authority to approve connection of the residence to the public electrical supply system. Wiring diagrams will also include panel schedules for circuit breaker panelboards, and riser diagrams for special services such as fire alarm or closed-circuit television or other special ...

  5. Printed circuit board - Wikipedia

    en.wikipedia.org/wiki/Printed_circuit_board

    A panel consisting of a design duplicated n-times is also called an n-panel, whereas a multi-panel combines several different designs onto a single panel. The outer tooling strip often includes tooling holes , a set of panel fiducials , a test coupon , and may include hatched copper pour or similar patterns for even copper distribution over the ...

  6. NEMA enclosure types - Wikipedia

    en.wikipedia.org/wiki/NEMA_enclosure_types

    The National Electrical Manufacturers Association (NEMA) defines standards used in North America for various grades of electrical enclosures typically used in industrial applications. Each is rated to protect against personal access to hazardous parts, and additional type-dependent designated environmental conditions.

  7. Electric switchboard - Wikipedia

    en.wikipedia.org/wiki/Electric_switchboard

    It is an assembly of one or more panels, each of which contains switching devices for the protection and control of circuits fed from the switchboard. Several manufacturers make switchboards used in industry, commercial buildings, telecommunication facilities, oil and gas plants, data centers, health care, and other buildings, and onboard large ...

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    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Plugboard - Wikipedia

    en.wikipedia.org/wiki/Plugboard

    A plugboard or control panel (the term used depends on the application area) is an array of jacks or sockets (often called hubs) into which patch cords can be inserted to complete an electrical circuit. Control panels are sometimes used to direct the operation of unit record equipment, cipher machines, and early computers. The array of holes is ...