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A receptacle with a green dot is a so-called "hospital grade" device; The primary reason to use a hospital-grade receptacle at a patient bed location is to ensure that a receptacle with a greater contact tension is provided to minimize possibilities that an attachment plug supplying medical or life support equipment may be disconnected because ...
BS 546, "Two-pole and earthing-pin plugs, socket-outlets and socket-outlet adaptors for AC (50-60 Hz) circuits up to 250 V" describes four sizes of plug rated at 2 A, 5 A (Type D), 15 A (Type M) and 30 A. The plugs have three round pins arranged in a triangle, with the larger top pin being the earthing pin.
Industrial outlets may have weatherproof covers, waterproofing sleeves, or may be interlocked with a switch to prevent accidental disconnection of an energized plug. Some types of connectors are approved for hazardous areas such as coal mines or petrochemical plants, where flammable gas may be present.
Tamperproofing is a methodology used to hinder, deter or detect unauthorised access to a device or circumvention of a security system. Since any device or system can be foiled by a person with sufficient knowledge, equipment, and time, the term "tamperproof" is a misnomer unless some limitations on the tampering party's resources is explicit or assumed.
There are requirements for the minimum number of branches, and placement of receptacles, according to the location and purpose of the receptacle outlet. Ten important items in Article 210 have been summarized in a codebook. [10] Feeder and branch circuit wiring systems are designed primarily for copper conductors.
The agency also says to wash fruits and vegetables thoroughly before consuming them, and to cook oysters and other shellfish to an internal temperature of at least 145°F, which is the temperature ...
The heavy case is secured with tamper-resistant bolts to deter unauthorized opening of the case. The International Electrotechnical Commission publishes the 60079 series of standards [ 2 ] which defines a system for classification of locations, as well as categorizing and testing of equipment designed for use in hazardous locations, known as ...
Average mortgage rates are edging down moderately week over week of Monday, January 6, 2024, though remain at elevated levels for benchmark 30-year and 15-year fixed terms, this despite three back ...