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Commercial

Virtually all commercial buildings have areas with elevated AC (60 Hz – power frequency) magnetic fields which can cause interference problems with sensitive electronic commercial-1equipment, and may be of possible health concern when continuously occupied. These are unavoidable; they are caused by electrical distribution equipment such as transformers, distribution switchboards, distribution service panels, and distribution electrical feeders/conduits. Most commercial buildings have background fields in the range of 2-4 milliGauss, but also have areas containing “hotspots” with much higher readings near these current sources. With today’s increasingly sensitive electronic technology, even relatively low background fields may be sufficient to cause equipment interference.

Problems with AC (60 Hz – power frequency) magnetic fields frequently emerge immediately after a new tenant moves in or after a build out or renovation. Space that commercial-2was either previously unused or not used for sensitive electronic equipment operations may suddenly develop a problem. For example, a previous “low tech” tenant may not have used computers extensively, but a new high-tech tenant has sensitive data communications and processing equipment that is sensitive to interference from AC (60 Hz – power frequency) magnetic fields as low as 2 to 3 mG.

New EMI problems are also common when there is a change in the building’s power structure. Proper planning during a renovation or lease negotiation can save considerable time and money if there is a potential EMF problem.

Commercial Projects

Letterman Digital Arts Center

Letterman Digital Arts Ltd, a division of Lucas Films Ltd constructed a new Digital Arts Center complex at the site of the former Letterman Army Hospital at the Presidio of San Francisco.

85 Broad Street

To mitigate EMI threat concerns, FMS designed and implemented multiple special magnetic field shielding schemes to lower EMF levels to acceptable, non EMI threat levels.

Novartis World Headquarters

Novartis AG operates in 140 countries and offers a wide range of healthcare products through its Pharmaceuticals, Vaccines and Diagnostics, Sandoz and Consumer Health divisions.

FMS EXPERIENCE

Over its 20 years, FMS has successfully completed hundreds of EMI projects which included a diverse range of consulting and mitigation services.

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