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Testers, Impedance, Grounding System

Definition : Electrical testers designed to measure the impedance in a section of the grounding system, usually by measuring the ratio of the voltage between the point under test and a reference point to the current applied to the point under test. These testers consist of a direct-current source (e.g., a battery) and/or an alternating-current line power supply (e.g., through a step-down transformer); a measuring instrument; a display that shows the results, typically in ohms; and long-wire (e.g., 3 m [10 ft]) test leads appropriate for connection to both the test point and the ground reference point. Grounding system testers are used to measure the integrity and electrical characteristics of hospital grounding systems; some testers may be used to apply a resistance of known value between the phase and ground conductors to simulate a fault, measuring the ground-fault loop impedance.

Entry Terms : "Loop Impedance Testers" , "Ground-Fault Loop Impedance Testers" , "Grounding System Testers"

UMDC code : 11923

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1-5 of 5 Match(es).

Crest Healthcare Supply

Company Type: Parent

Crest Healthcare Supply is a trusted partner to Hospitals and Long Term Care facilities that has delivered knowledgeable customer support and reliable products for over forty years. Crest was founded in 1967 when Howard Page, the original owner, purchased rights to a nurse call system owned by IBM.

Hampden Engineering Corp

Company Type: Parent

HAMPDEN ENGINEERING (est. 1954) is a manufacturer of electrical power distribution systems for education. The quality and design of our engineering production process controls, maintenance and test facilities has made HAMPDEN a standard for US and abroad.

Hospital Systems Inc (HSI)

Company Type: Parent

At the end of a project the clinicians are happy with headwall functionality; the hospital is happy with the headwall budget; and the designers are happy that they have achieved the look and feel intended.

Ohmic Instruments Co

Company Type: Parent

QuadTech Inc

Company Type: Parent

QuadTech was established in March of 1991 with the purchase of the Precision Instrument Division of GenRad. The products and people joining QuadTech from GenRad at that time represented a long and successful heritage going back to 1915 when GenRad was founded. QuadTech has continued to build on that reputation by becoming a leader in the Electrical Safety marketplace with the sole mission of Making the Customer Successful.

1-5 of 5 Match(es).