This article was posted 02/21/2007 and is most likely outdated.

Guidelines for Grounding Information Technology Equipment (ITE)
 

 
Topic - Grounding and Bonding
Subject - Guidelines for Grounding Information Technology Equipment (ITE)

February 21, 2007  

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Guidelines for Grounding Information Technology Equipment (ITE)

ImageNinety percent (90%) of the problems with ITE installations are internal to the facility; only 10% are related to conditions on the utility electric service. Importantly, 75% of the problems arising within a facility are related to grounding making proper and adequate grounding the single-most important factor in reliable ITE system performance.

The purpose of the following letter of information is to establish guidelines for grounding of power systems and equipment for ITE installations.

Click Here or on the image to read the full letter provided by the Information Technology Industry Council (ITI, formerly CBEMA).
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Comments

  • Mike: Why in America do we require the neutral-ground bond at the main switchboard, why not simply allow the bond only at the Utility transformer in non dwelling-unit (commercial) applications? A stable 0V reference ground is essential to solid state circuit operation, such as amplifiers. Often pad mounted transformers have significant distance D from the main bonding jumper location, which is not ideal per figure 6-A. Jamie M. Fox, PE, LEED AP Mazzetti & Associates San Francisco, CA

    Jamie Fox
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