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  2. Work method statement - Wikipedia

    en.wikipedia.org/wiki/Work_method_statement

    A work method statement, sometimes referred to as a safe work method statement or SWMS or a safe work procedure, is a part of a workplace safety plan. [1] It is primarily used in construction to describe a document that gives specific instructions on how to safely perform a work related task, or operate a piece of plant or equipment.

  3. Single-line diagram - Wikipedia

    en.wikipedia.org/wiki/Single-line_diagram

    A typical one-line diagram with annotated power flows. Red boxes represent circuit breakers, grey lines represent three-phase bus and interconnecting conductors, the orange circle represents an electric generator, the green spiral is an inductor, and the three overlapping blue circles represent a double-wound transformer with a tertiary winding.

  4. Mesh analysis - Wikipedia

    en.wikipedia.org/wiki/Mesh_analysis

    Mesh analysis (or the mesh current method) is a circuit analysis method for planar circuits. Planar circuits are circuits that can be drawn on a plane surface with no wires crossing each other. A more general technique, called loop analysis (with the corresponding network variables called loop currents ) can be applied to any circuit, planar or ...

  5. Knob-and-tube wiring - Wikipedia

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

    Knob-and-tube wiring (sometimes abbreviated K&T) is an early standardized method of electrical wiring in buildings, in common use in North America from about 1880 to the 1930s.

  6. Network analysis (electrical circuits) - Wikipedia

    en.wikipedia.org/wiki/Network_analysis...

    There is an underlying assumption to this method that the total current or voltage is a linear superposition of its parts. Therefore, the method cannot be used if non-linear components are present. [2]: 6–14 Superposition of powers cannot be used to find total power consumed by elements even in linear circuits. Power varies according to the ...

  7. Electrical resistivity measurement of concrete - Wikipedia

    en.wikipedia.org/wiki/Electrical_resistivity...

    On-site electrical resistivity of concrete is commonly measured using four probes in a Wenner array. The reason for using four probes is the same as in the laboratory method - to overcome contact errors. In this method four equally spaced probes are applied to the specimen in a line.

  8. Electrical resistivity tomography - Wikipedia

    en.wikipedia.org/wiki/Electrical_resistivity...

    2D resistivity inversion of ERT data Deployment of a permanent electrical resistivity tomography profile on a longitudinal section of an active landslide.. Electrical resistivity tomography (ERT) or electrical resistivity imaging (ERI) is a geophysical technique for imaging sub-surface structures from electrical resistivity measurements made at the surface, or by electrodes in one or more ...

  9. Mechanical, electrical, and plumbing - Wikipedia

    en.wikipedia.org/wiki/Mechanical,_electrical...

    However, this novel and complicated method requires careful and expensive planning from mechanical engineers, who must work closely with the engineers designing the electrical and plumbing systems for a building. A major concern for people designing HVAC systems is the efficiency, i.e., the consumption of electricity and water.

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