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  2. Intrinsic safety - Wikipedia

    en.wikipedia.org/wiki/Intrinsic_safety

    The United States Coast Guard requires that the two way radio must be certified as intrinsically safe. Another example is intrinsically safe or explosion-proof mobile phones used in explosive atmospheres, such as refineries. Intrinsically safe mobile phones must meet special battery design criteria in order to achieve UL, ATEX directive, or ...

  3. Electrical equipment in hazardous areas - Wikipedia

    en.wikipedia.org/wiki/Electrical_equipment_in...

    Explosion-proofing designs equipment to contain ignition hazards, prevent entry of hazardous substances, and, contain any fire or explosion that could occur. Different countries have approached the standardization and testing of equipment for hazardous areas in different ways. Terminology for both hazards and protective measures can vary.

  4. craigslist - Wikipedia

    en.wikipedia.org/wiki/Craigslist

    Craigslist headquarters in the Inner Sunset District of San Francisco prior to 2010. The site serves more than 20 billion [17] page views per month, putting it in 72nd place overall among websites worldwide and 11th place overall among websites in the United States (per Alexa.com on June 28, 2016), with more than 49.4 million unique monthly visitors in the United States alone (per Compete.com ...

  5. Improvised explosive device - Wikipedia

    en.wikipedia.org/wiki/Improvised_explosive_device

    An IED has five components: a switch (activator), an initiator (fuse), container (body), charge (explosive), and a power source (battery). An IED designed for use against armoured targets such as personnel carriers or tanks will be designed for armour penetration, by using a shaped charge that creates an explosively formed penetrator. IEDs are ...

  6. Blowout (well drilling) - Wikipedia

    en.wikipedia.org/wiki/Blowout_(well_drilling)

    The blowout caused the explosion of the Deepwater Horizon, a mobile offshore drilling platform owned by Transocean and under lease to BP at the time of the blowout. While the exact volume of oil spilled is unknown, as of June 3, 2010 [update] , the United States Geological Survey Flow Rate Technical Group has placed the estimate at between ...

  7. Drilling and blasting - Wikipedia

    en.wikipedia.org/wiki/Drilling_and_blasting

    The decision whether to construct a tunnel using a TBM or using a drill and blast method includes a number of factors. Tunnel length is a key issue that needs to be addressed because large TBMs for a rock tunnel have a high capital cost, but because they are usually quicker than a drill and blast tunnel the price per metre of tunnel is lower. [ 2 ]

  8. Texas chemical plant explosion sparks large fire, evacuation ...

    www.aol.com/news/texas-chemical-plant-explosion...

    They’ve made sure everyone is safe,” he said. The blaze prompted the evacuation of a private school on Farm-to-Market Road 1127 and officials to issue a five-mile shelter-in-place warning.

  9. Pyrotechnic fastener - Wikipedia

    en.wikipedia.org/wiki/Pyrotechnic_fastener

    A pyrotechnic fastener (also called an explosive bolt, or pyro, within context) is a fastener, usually a nut or bolt, that incorporates a pyrotechnic charge that can be initiated remotely.