Section PSC 113.0703 - Variations of voltage(1) Service interruptions, or voltage sags, swells and transients caused by the action of the elements, temporary separation of parts of the system from the main system, infrequent or unavoidable fluctuations of short duration, equipment failure, normal system operations necessary operations to safeguard employees or the general public, or other causes beyond the control of the utility shall not be considered a violation of these rules. Note: Voltage fluctuations, transients, sags and swells may affect the performance of certain types of equipment or operations and should be considered by the customer. Customers having equipment or operations that are sensitive to such voltage fluctuations, or that require service other than that specified by these rules may find it necessary to install, at their own expense, power conditioning equipment or other modifications to protect, mitigate or otherwise provide the type of service needed.
(2) In order to limit the impact of voltage variations, utilities may establish starting and operating criteria for equipment on customer premises. Customer loads shall be sized and operated in accordance with such criteria.(3) If procedures for voltage reduction during emergency operating conditions have been filed with and accepted or approved by the commission, variations of voltage in excess of those specified in ss. PSC 113.0702 and 113.0703, resulting from implementation in accordance with the specified procedures, shall not be considered a violation of these rules.Wis. Admin. Code Public Service Commission § PSC 113.0703
CR Register, July, 2000, No. 535, eff. 8-1-00.