The United States has developed a new technology to contain oil spills in substations

Substation oil spills are very harmful to the environment. The general substation to contain oil spills is to use concrete baffles or land barriers. The amount of work is large and the capital investment is large. In the case of bad weather, the maintenance of electrical equipment will be affected. To this end, the American Electric Power Company has developed a glass fiber composite anti-seepage oil facility with a hollow grid structure. This 6.6 cm × 61 cm glass fiber hollow grid partition is flexible and can be installed around electrical equipment to form an anti-seepage. Oil cellar and easy to install.
In the field test, there was no lining at the beginning, and there was no leakage after 3 weeks of water injection. After the addition of the ground composite lining at the bottom, no leakage was observed. Finally, the drain pipe was added to the partition plate, and the test was carried out, and the effect was also good. The facility also successfully passed the fire test, which was only slightly deformed under fire, but no oil leakage occurred.

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Screws are threaded fasteners that create permanent or temporary assemblies. They are inserted and removed by turning in one direction or another. Wood screws, floor screws, and sheet metal screws have flat heads that sit flush when holding material together. Machine screws fasten metal to metal and are inserted into a prethreaded hole or mated with a nut. Thread-cutting screws are self-tapping screws that cut away and remove the surrounding material to create a tapped hole. Deck screws resist rust and corrosion to hold outdoor decking materials together. Drywall screws have fine tips, coarse threads, and tapered bugle heads to penetrate drywall and grip wood without damaging material. Hex-head bolts, cap screws, and lag screws are driven with wrenches rather than screwdrivers or drill bits. Captive panel screws and thumb screws can be tightened and loosened without tools on parts that are frequently removed such as access panels. Screw caps can help to cover screw heads for both safety and aesthetic purp

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