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2. Pattress - Wikipedia

   en.wikipedia.org/wiki/Pattress

   External pattress boxes: power and data sockets. A pattress or pattress box or fitting box (in the United States and Canada, electrical wall switch box, electrical wall outlet box, electrical ceiling box, switch box, outlet box, electrical box, etc.) is the container for the space behind electrical fittings such as power outlet sockets, light switches, or fixed light fixtures.

3. Knob-and-tube wiring - Wikipedia

   en.wikipedia.org/wiki/Knob-and-tube_wiring

   When a generic power outlet was desired, the wiring could run directly into the junction box through a tube of protective loom and a ceramic bushing. Wiring devices such as light switches, receptacle outlets, and lamp sockets were either surface-mounted, suspended, or flush-mounted within walls and ceilings.

4. Tie (engineering) - Wikipedia

   en.wikipedia.org/wiki/Tie_(engineering)

   In wood-frame construction ties are generally made of galvanized steel. [2] Wood framing ties generally have holes allowing them to be fastened to the wood structure by nails or screws . The number and type of nails are specific to the tie and its use.

5. Penetrant (mechanical, electrical, or structural) - Wikipedia

   en.wikipedia.org/wiki/Penetrant_(mechanical...

   Penetrants, or penetrating items, are the mechanical, electrical or structural items that pass through an opening in a wall or floor, such as pipes, electrical conduits, ducting, electrical cables and cable trays, or structural steel beams and columns. When these items pierce a wall or floor assembly, they create a space between the penetrant ...

6. Timber framing - Wikipedia

   en.wikipedia.org/wiki/Timber_framing

   The dragon-beam which runs diagonally from one corner to another, and supports the corner posts above and supported by the corner posts below; The jetty beams or joists conform t floor dimensions above, but are at right angles to the jetty-plates that conform to the shorter dimensions of "roof" of the floor below. Jetty beams are mortised at 45 ...

7. Twist-on wire connector - Wikipedia

   en.wikipedia.org/wiki/Twist-on_wire_connector

   Twist-on wire connectors are a type of electrical connector used to fasten two or more low-voltage (or extra-low-voltage) electrical conductors. They are widely used in North America and several European countries in residential, commercial and industrial building power wiring, but have been banned in some other jurisdictions.

8. Utility pole - Wikipedia

   en.wikipedia.org/wiki/Utility_pole

   A utility pole, commonly referred to as a transmission pole, telephone pole, telecommunication pole, power pole, hydro pole, telegraph pole, or telegraph post, is a column or post used to support overhead power lines and various other public utilities, such as electrical cable, fiber optic cable, and related equipment such as transformers and ...

9. Laminated veneer lumber - Wikipedia

   en.wikipedia.org/wiki/Laminated_veneer_lumber

   In LVL, the direction of the wood grain is always parallel to the length of the billet. [6] The stacking of these veneers into a complete board, called a billet, creates a single piece of LVL sharing a common direction of wood grain. [1] LVL is typically rated by the manufacturer for elastic modulus and allowable bending stress.