IEEE 640-1985

New IEEE Standard - Inactive-Withdrawn. Environmental noise and occupational noise exposure are a matter of increasing public concern. Legislation requiring assessment, control, and abatement of noise has been enacted on all governmental levels. This guide provides guidance to control electric power-plant noise emissions to acceptable limits. There has been an increase in the noise emissions from power plants with the use of larger, more intensely used, machinery. To reduce this noise emission, power-plant engineers need to become familiar with noise-control principles. Noise control for new plants is usually expensive and may cost up to 4% of the total cost of the plant. It is necessary that noise-control planning be done prior to constructing a new plant or to modernizing an existing plant so as to eliminate or minimize excessive retrofit costs.