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  2. Pipefitter - Wikipedia

    en.wikipedia.org/wiki/Pipefitter

    A pipefitter or steamfitter [1] is a tradesman who installs, assembles, fabricates, maintains, and repairs mechanical piping systems. Pipefitters usually begin as helpers or apprentices. Pipefitters usually begin as helpers or apprentices.

  3. List of construction trades - Wikipedia

    en.wikipedia.org/wiki/List_of_construction_trades

    Pipefitter (or steamfitter), a person who lays out, assembles, fabricates, maintains, and repairs large-sized piping systems capable of enabling high-pressure flow. [ 9 ] Plasterer , a tradesperson who works with plaster , such as forming a layer of plaster on an interior wall or plaster decorative moldings on ceilings or walls.

  4. Welding power supply - Wikipedia

    en.wikipedia.org/wiki/Welding_power_supply

    A transformer-style welding power supply converts the moderate voltage and moderate current electricity from the utility mains (typically 230 or 115 VAC) into a high current and low voltage supply, typically between 17 and 45 (open-circuit) volts and 55 to 590 amperes. A rectifier converts the AC into DC on more expensive machines.

  5. Piping and plumbing fitting - Wikipedia

    en.wikipedia.org/wiki/Piping_and_plumbing_fitting

    Polypropylene fittings for solvent welding. A solvent is applied to PVC, CPVC, ABS or other plastic piping to partially dissolve and fuse the adjacent surfaces of piping and fitting. Solvent welding is usually used with a sleeve-type joint to connect pipe and fittings made of the same (or compatible) material.

  6. Industrial and multiphase power plugs and sockets - Wikipedia

    en.wikipedia.org/wiki/Industrial_and_multiphase...

    Industrial devices may also be constructed to be dust or water-tight. NEMA wiring devices are made in current ratings from 15–60 A, and voltage ratings from 125–600 V. There are two basic configurations of NEMA plug and socket: straight-blade and locking. Numbers prefixed by L are twist-lock, others are straight blade. Locking type ...

  7. List of welding codes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_codes

    Gas welding equipment - Small kits for gas brazing and welding ISO 14175: Welding consumables — Gases and gas mixtures for fusion welding and allied processes. Replaced EN 439:1994 in Europe. ISO 14341: Welding consumables. Wire electrodes and deposits for gas shielded metal arc welding of non alloy and fine grain steels. Classification ISO 14554

  8. Induction welding - Wikipedia

    en.wikipedia.org/wiki/Induction_welding

    The apparatus used for induction welding processes includes a radio frequency power generator, a heating station, the work piece material, and a cooling system. The power generator comes in either the form of solid state or vacuum tube and is used to provide an alternating current of 230-340 V or a frequency of 50–60 Hz to the system.

  9. Cable harness - Wikipedia

    en.wikipedia.org/wiki/Cable_harness

    A cable laced wiring harness installed in a component of a Tesla coil Harness of car audio cables.. A cable harness, also known as a wire harness, wiring harness, cable assembly, wiring assembly or wiring loom, is an assembly of electrical cables or wires which transmit signals or electrical power. [1]