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  2. Electrical conduit - Wikipedia

    en.wikipedia.org/wiki/Electrical_conduit

    FMT is a raceway, but not a conduit and is described in a separate NEC Article 360. It only comes in 1/2" & 3/4" trade sizes, whereas FMC is sized 1/2" ~ 4" trade sizes. NEC 360.2 describes it as: "A raceway that is circular in cross section, flexible, metallic and liquidtight without a nonmetallic jacket."

  3. Flow in partially full conduits - Wikipedia

    en.wikipedia.org/.../Flow_in_partially_full_conduits

    Closed channel flows are generally governed by the principles of channel flow as the liquid flowing possesses free surface inside the conduit. [1] However, the convergence of the boundary to the top imparts some special characteristics to the flow like closed channel flows have a finite depth at which maximum discharge occurs. [ 2 ]

  4. IDC (electrical connector) - Wikipedia

    en.wikipedia.org/wiki/IDC_(electrical_connector)

    In some instances USB through version 2 on motherboards – 2.54 mm pitch, 10 pins, 2×5 (2 rows of 5 pins) [9] For all of the above connectors, the computer manufacturer typically attaches a female IDC connector onto one end of a ribbon cable, and later slides that connector onto a matching male box header or pin header on the computer ...

  5. Conduit current collection - Wikipedia

    en.wikipedia.org/wiki/Conduit_current_collection

    Conduit for current collection between the rails of streetcars in Washington, D.C., 1939. Washington installed the system in 1895 [1] and it remained in operation until 1962 [2] Conduit current collection is an obsolete system that was used by some electric tramways to pass current to

  6. Hydraulic diameter - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_diameter

    Open from top by definition so that the wetted perimeter consists of the 3 sides of the duct (2 on the side and the base). D H = 4 a b 2 a + b {\displaystyle D_{\text{H}}={\frac {4ab}{2a+b}}} For the limiting case of a very wide duct, i.e. a slot of width b , where b ≫ a , and a is the water depth, then D H = 4 a .

  7. Electrical connector - Wikipedia

    en.wikipedia.org/wiki/Electrical_connector

    The number of times a connector can connect and disconnect with its counterpart while meeting all its specifications is termed as mating cycles and is an indirect measure of connector lifespan. The material used for connector contact, plating type and thickness is a major factor that determines the mating cycles. [35]