OAR 860-023-0020
Quality of Electric Service
(1)
Every electric company shall adopt a set of normal standard voltages at the point of delivery for the different classes of service in its service areas. The nominal standard voltages applicable to residential and commercial customers shall be specified in the tariffs filed by the electric company. Except as may be caused by the customer’s operation of apparatus in violation of the electric company’s rules, or by conditions beyond the electric company’s control, every electric company shall maintain the adopted standard secondary voltages so the same shall not normally vary more than plus or minus 5 percent of the standard at the service entrance.(2)
Each electric company shall make a sufficient number of voltage surveys to indicate the service furnished is in compliance with the standard as indicated under section (1) of this rule.(3)
Each electric company shall keep a complete record of each test of voltage and service conditions, as made under these rules, and this record shall be accessible to the Commission or its authorized representatives. Each record of tests of voltage or service conditions so kept shall contain complete information concerning the test, including such items as the Commission may from time to time require.
Source:
Rule 860-023-0020 — Quality of Electric Service, https://secure.sos.state.or.us/oard/view.action?ruleNumber=860-023-0020.