This standard applies to surge protectors for application on multiconductor balanced or unbalanced information and communications technology (ICT) circuits, and smart grid data circuits. These surge protectors are designed to limit voltage surges, current surges, or both. The surge protectors covered are generally multiple-component series or parallel combinations of linear or nonlinear elements, packaged or organized for the purpose of limiting voltage, current, or both. This standard describes the methods of testing and criteria (where appropriate) for the characteristics and ratings of surge protectors used in information and communications technology (ICT) circuits, and smart grid data circuits. This standard is not intended to cover packaged single gas tube, air gap, varistor, or avalanche junction surge-protective devices, which are covered by IEEE Std C62.31 [IEEE Standard Test Specifications for Gas-Tube Surge-Protective Devices], IEEE Std C62.32 [IEEE Standard Test Specifications for Low-Voltage Air Gap Surge-Protective Devices], IEEE Std C62.33 [IEEE Standard Test Specifications for Varistor Surge-Protective Devices], and IEEE Std C62.35 [IEEE Standard Test Specifications for Avalanche Junction Semiconductor Surge Protective Devices], respectively. Specifically excluded from this standard are test methods for low-voltage power circuit applications. For protection of wire-line communication facilities under the specialized conditions found at power stations, consult IEEE Std 487 [IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations].
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