4Definition of “basic metering equipment”

4 Definition of “basic metering equipment”

4 Definition of “basic metering equipment”

For the Act, Dictionary, definition of basic metering equipment, the following equipment is prescribed—

(a) valves to isolate gas supply,

(b) pipe work, including a combination of pipes, flanges, tees, elbows and other pipe-connecting equipment designed to convey gas,

(c) fittings, smaller instruments used in connection with fittings, pressure sensing tubing and tube fittings, instrument valves and associated equipment,

(d) filters designed to trap and remove foreign matter from gas streams,

(e) pressure regulators designed to reduce and control pressure,

(f) over-pressure protection devices designed to protect downstream equipment from exposure to excessive pressure if upstream equipment fails,

(g) non-return valves designed to ensure gas flow travels in only one direction and to prevent reverse flow,

(h) mechanical indexes designed to indicate consumption of raw metered gas,

(i) meter bars and other equipment designed to support a gas meter, and associated equipment that forms part of the meter installation,

(j) electrical connections and wiring designed to convey electrical signals for gas meters, flow correction devices, alarms and metering communications equipment,

(k) flow correction devices or software designed to enable raw metering data to be—

(i) adjusted for the effects of temperature, pressure or gas quality, and

(ii) referenced to standard temperature and pressure conditions,

(l) temperature and pressure correction devices designed to enable raw metering data to be adjusted for the effects of temperature and pressure,

(m) devices and equipment designed to analyse and calculate the heating value of a gas stream.

Example—

Chromatography equipment and calorimeters.