Hospital Grade Plug
July 2005
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In response to feedback from hospital equipment OEMs and as a result of its own investigation of how cords are often abused in the hospital environment, the company has developed a new Hospital Grade (HG) Plug specifically designed to withstand the “real world” stresses imposed on HG plugs. The company developed a series of specific tests designed to simulate the wear and tear HG cords face in a variety of situations. The test results were then used to search the industry for the components necessary to create a superior design.
The new system consists of solid nickel-plated blades and a solid round ground pin contained in a “bridge” that holds both blades and the ground pin as an assembly. The bridge is bowl-fed into an automatic stripper/crimper machine, which, in addition to the controlled stripping and crimping operation, verifies correct polarity prior to crimping. According to the company, the use of the bridge system eliminates the use of solder, which contains lead on both the blades and ground pin, thus allowing compliance to the European Union’s RoHS requirements. It also reportedly eliminates the possibility of a “cold solder” joint. In addition to the necessary UL testing, the company has conducted two additional tests of ground pin bending, which are said to more closely simulate actual service conditions. Electri-Cord Manufacturing

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