Site Requirements
51
vacuum cleaners, or printer component wear. Because metallic particulates
conduct electricity, they have an increased potential for creating short
circuits in electronic equipment. This problem is exaggerated by the
increasingly dense circuitry of electronic equipment.
Over time, very fine whiskers of pure metal can form on electroplated zinc,
cadmium, or tin surfaces. If these whiskers are disturbed, they may break
off and become airborne, possibly causing failures or operational
interruptions. For over 50 years, the electronics industry has been aware of
the relatively rare but possible threat posed by metallic particulate
contamination. During recent years, a growing concern has developed in
computer rooms where these conductive contaminants are formed on the
bottom of some raised floor tiles.
Although this problem is relatively rare, it may be an issue within your
computer room. Since metallic contamination can cause permanent or
intermittent failures on your electronic equipment, HP strongly
recommends that your site be evaluated for metallic particulate
contamination before installation of electronic equipment.
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