ATIS 0600338.2021

Many types of communications devices contain secondary surge protection devices or components either integral to their designs or placed near the protected equipment. External primary surge protection devices or components, typically placed where the outside plant enters a structure, are normally used to prevent excessive currents and voltages from entering the structure or equipment, where they could cause injury or damage. This standard addresses the proper electrical coordination of primary devices or components and secondary surge protection devices or components.