Rules & Regulations of the State of Tennessee
Title 1220 - Tennessee Public Utility Commission
Subtitle 1220-04 - Division of Public Utilities
Chapter 1220-04-04 - Regulations for Electric Companies
Section 1220-04-04-.43 - VOLTAGE LIMITS

Universal Citation: TN Comp Rules and Regs 1220-04-04-.43

Current through September 24, 2024

(1) Each utility shall adopt and file with the Authority standard nominal service voltages for each of the several areas into which its distribution system or systems may be divided.

(a) Secondary Voltages - Delivery Point

The variations of voltage shall be no more than 71/2 or below the standard voltage at any time. Where three (3) phase service is provided, the utility shall exercise reasonable care to assure that the phase voltages are in balance.

(b) Primary Voltages - Delivery Point

The variations of voltage shall be no more than five per cent (5%) above or below the standard voltage at that time.

(c) Limitations

Limitations in subparagraphs (c) and (d) above do not apply to special contracts in which the customer specifically agrees to accept service with unregulated voltage.

(d) Exceptions to Voltage Requirements:

Voltage outside the limits specified will not be considered a violation when the variations

1. Arise from the action of the elements.

2. Are infrequent fluctuations not exceeding five (5) minutes duration.

3. Arise from service interruptions.

4. Arise from temporary separation of parts of the system from the main system.

5. Are from causes beyond the control of the utility.

Authority: T.C.A. § 65-2-102.

Disclaimer: These regulations may not be the most recent version. Tennessee may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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