properly installed, operated, and maintained. Sidewalls shall extend above
ground line. The boxes shall be provided with [steel door] [cast iron
manhole] covers with locking provisions and 100 mm (4 inch) 4 inch diameter
vents. One key or other unlocking device shall be furnished with each
cover. Discharge stacks, vents, or outlet ports of all pressure relief
devices shall be located where gas can be discharged into the atmosphere
without undue hazard. Stacks and vents shall be provided with fittings to
preclude entry of water.
3.10.2
Service Line Regulators
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NOTE: Delete inapplicable requirements.
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A shutoff valve, meter set assembly, and service regulator shall be
installed on the service line outside the building, 450 mm 18 inches above
the ground on the riser. An insulating joint shall be installed on the
inlet side of the meter set assembly and service regulator and shall be
constructed to prevent flow of electrical current. A 10 mm (3/8 inch) 3/8
inch tapped fitting equipped with a plug shall be provided on both sides of
the service regulator for installation of pressure gauges for adjusting the
regulator. All service regulator vents and relief vents shall terminate in
the outside air in rain and insect resistant fittings. The open end of the
vent shall be located where gas can escape freely into the atmosphere, away
from any openings into the building and above areas subject to flooding.
3.11
METER INSTALLATION
Meters shall be installed in accordance with ASME B31.8. Permanent gas
meters shall be installed with provisions for isolation and removal for
calibration and maintenance, and shall be suitable for operation in
conjunction with an energy monitoring and control system.
3.12
CONNECTIONS TO EXISTING LINES
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NOTE: If connections to existing mains are
required, retain this subparagraph, and select the
appropriate Paragraph. Drawings will show existing
gas lines when interface with the existing gas
system is required.
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Connections between new work and existing gas lines, where required, shall
be made in accordance with ASME B31.8, using proper fittings to suit the
actual conditions. When connections are made by tapping into a gas main,
the connecting fittings shall be the same size as the pipe being connected.
3.12.1
Connections to Publicly or Privately Operated Gas Utility Lines
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NOTE: Delete inapplicable requirements.
**************************************************************************
Contractor shall provide materials for the connections to the existing gas
lines. Final connections and the turning on of gas shall be made by the
utility. Existing lines that are to be a abandoned or taken out of service
shall be disconnected, purged and capped, plugged or otherwise effectively
SECTION 02556A
Page 24
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