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  2. Electrical room - Wikipedia

    en.wikipedia.org/wiki/Electrical_room

    An electrical room is a technical room or space in a building dedicated to electrical equipment. Its size is usually proportional to the size of the building; large buildings may have a main electrical room and subsidiary electrical rooms. Electrical equipment may be for power distribution equipment, or for communications equipment. [1]

  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. Electrical wiring in North America - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring_in_North...

    Leg as in "hot leg" refers to one of multiple hot conductors in an electrical system. The most common residential and small commercial service in Canada and the U.S., single split-phase, 240 V, features a neutral and two hot legs, 240 V to each other, and 120 V each to the neutral. The most common three-phase system will have three hot legs ...

  5. Shop drawing - Wikipedia

    en.wikipedia.org/wiki/Shop_drawing

    Installation information will need to be reviewed with electrical and plumbing trades to coordinate third-party service connections. A shop drawing is a drawing or set of drawings produced by the contractor , supplier , manufacturer, subcontractor , consultants, or fabricator .

  6. Electric power distribution - Wikipedia

    en.wikipedia.org/wiki/Electric_power_distribution

    Electric power distribution is the final stage in the delivery of electricity. Electricity is carried from the transmission system to individual consumers. Distribution substations connect to the transmission system and lower the transmission voltage to medium voltage ranging between 2 kV and 33 kV with the use of transformers . [ 1 ]

  7. List of construction trades - Wikipedia

    en.wikipedia.org/wiki/List_of_construction_trades

    Electrician, specializing in electrical wiring of buildings and related equipment. Electricians may be employed in the construction of new buildings or maintenance of existing electrical infrastructure, they can also install A/C and Telecommunications systems. [2] [3] Elevator mechanic installs vertical lift and transporting equipment.

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