(a)  These rules shall apply to any person, firm, or corporation (except municipalities, or agents thereof) which is now or may hereafter become engaged as a public utility in the business of furnishing electric current for domestic, commercial or industrial consumers within the State of North Carolina.

(b)  The rules are intended to define good practice which can normally be expected. They are intended to insure adequate service and to protect the public from unfair practices and the utilities from unreasonable demands. The cooperation of the utilities with the Commission and the Public Staff is expected.

(c)  In any case where compliance with any of these rules introduces unusual difficulty, such rule may be temporarily waived by the Commission upon application of the utility. If in such case compliance with the rule would cost more than the results of such compliance are worth to the public and consumers of electric current, it may be permanently set aside by the Commission.

(NCUC Docket No. M‑100, Sub 75, 10/27/77.)