GENERAL PROVISIONS
§ 61.1. Definitions.
The following words and terms, when used in this chapter, have the following meanings, unless the context clearly indicates otherwise:
Critical valves—Valves that are deemed critical in case of emergencies or shut down.
Customer—A party supplied with steam service by a public utility.
Customer’s piping—The pipe of the customer which extends from the service line termination point to the point of utilization.
Degree day—A unit used in estimating quantities of fuel and power consumption based on a daily ratio of consumption the mean temperature below 65°F.
Facilities—Mains and service lines owned or operated by a steam utility for the purpose of transporting steam from where it is produced to the customer’s piping.
Failure investigation—The process of collecting and analyzing data to determine the cause of failure.
Hot water—Water heated by an energy source above its initial temperature.
Main—Piping that transports steam from where it is produced and delivers it to the beginning of the service line.
Pounds of steam—The quantity of steam supplied, measured in pounds and equal to the same amount of water, which would result from condensing the steam used by the customer.
Service line—The pipe connecting the utility main to the customer’s piping. The point of service termination is the customer’s property line unless otherwise provided by contract.
Steam—Water vapor kept under pressure so as to supply energy for heating.
Steam distribution system—A system that takes steam from where it is produced and delivers it to end users.
Steam trap—A device used to discharge condensate and noncondensable gases with a negligible consumption or loss of live steam.
Steam utility—A utility that provides the public services associated with steam distribution.
Water hammer—The phenomenon that occurs when steam charges in the pipeline while condensate is present.
Authority The provisions of this § 61.1 amended under the Public Utility Code, 66 Pa.C.S. § § 501 and 1501.
Source The provisions of this § 61.1 amended December 1, 2017, effective December 2, 2017, 47 Pa.B. 7314. Immediately preceding text appears at serial pages (239219) to (239220).
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