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  2. Cross-linked polyethylene - Wikipedia

    en.wikipedia.org/wiki/Cross-linked_polyethylene

    A cross-linked polyethylene (PEX) pipe. Cross-linked polyethylene, commonly abbreviated PEX, XPE or XLPE, is a form of polyethylene with cross-links.It is used predominantly in building services pipework systems, hydronic radiant heating and cooling systems, domestic water piping, insulation for high tension (high voltage) electrical cables, and baby play mats.

  3. First fix and second fix - Wikipedia

    en.wikipedia.org/wiki/First_fix_and_second_fix

    Second fix work requires a neater finish than first fix. The division of work is a convenient description because electricians, plumbers and carpenters will probably have to make two separate visits to one property under construction, at separate times. Project managers can report "first fix complete" or "second fix 50% done" and others can ...

  4. Infiltration (HVAC) - Wikipedia

    en.wikipedia.org/wiki/Infiltration_(HVAC)

    Smoke candles and blower-door tests can help identify less-than-obvious leaks. The Weatherization article describes methods for energy savings further. If infiltration is reduced below 0.35 ACH, it is recommended that mechanical ventilation (typically an exhaust fan or heat recovery ventilation ) be implemented.

  5. Air Transat Flight 236 - Wikipedia

    en.wikipedia.org/wiki/Air_Transat_Flight_236

    The transferred fuel was lost through the fractured fuel line, which was leaking at about 13 tonnes per hour (more than 3.6 kg/s). This caused a higher-than-normal fuel flow through the fuel-oil heat exchanger, which in turn led to a drop in oil temperature and a rise in oil pressure for the no. 2 engine.

  6. Grand Designs New Zealand - Wikipedia

    en.wikipedia.org/wiki/Grand_Designs_New_Zealand

    Grand Designs New Zealand is a New Zealand television series. [1] It is based on the British television series Grand Designs and it was originally presented by the architect Chris Moller and aired on TV3 . [ 2 ]

  7. Kalamazoo River oil spill - Wikipedia

    en.wikipedia.org/wiki/Kalamazoo_River_oil_spill

    A 6-foot (1.8 m) break in the pipeline resulted in one of the largest inland oil spills in U.S. history (the largest was the 1991 spill near Grand Rapids, Minnesota [1]). The pipeline carries diluted bitumen (dilbit), a heavy crude oil from Canada's Athabasca oil sands to the United States. [2] Cleanup took five years. [3]

  8. Space Shuttle thermal protection system - Wikipedia

    en.wikipedia.org/wiki/Space_Shuttle_thermal...

    These concerns were sufficiently great that NASA did significant work developing an emergency-use tile repair kit which the STS-1 crew could use before deorbiting. By December 1979, prototypes and early procedures were completed, most of which involved equipping the astronauts with a special in-space repair kit and a jet pack called the Manned ...

  9. Wreckx-n-Effect - Wikipedia

    en.wikipedia.org/wiki/Wreckx-N-Effect

    Title Details Peak chart positions Certifications; US US R&B AUS [10]Wrecks-n-Effect: Release date: September 1, 1989; Label: Motown 103 16 — Hard or Smooth: Release date: November 24, 1992