EMERSON KJ1501X1-BB1 Thyristor module
) Conduct an EM survey at the facility location using the proper equipment and experienced personnel, examine the history of performance of the similar equipment at other sites with comparable environments, and consider the measured EMI characteristics of the equipment. (3) Determine the amount of shielding necessary. If the measured signal strength is greater than the susceptible level, arrange to provide the extra shielding necessary either as part of the structure or building or require that the equipment’s shielding be upgraded. If susceptibility data is not available, make a best estimate of the amount of required shielding from the historical performance of the equipment (or similar types) at other sites. (4) Before deciding what type or how much supplemental shielding material is necessary, estimate the amount of shielding inherently provided by conventional building materials and techniques. Estimate the shielding provided by normal construction techniques (steel skeleton with brick or concrete block exterior with standard wood, gypsum board, or concrete block interior walls).
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