Haw. Code R. § 6-77-153 - General requirements
(a) Pressure
increases. Whenever the requirements of this subchapter require that an
increase in operating pressure be made in increments, the pressure must be
increased gradually, at a rate that can be controlled, and in accordance with
the following:
(1) At the end of each
incremental increase, the pressure must be held constant while the entire
segment of pipeline that is affected is checked for leaks; and
(2) Each leak detected must be repaired
before a further pressure increase is made, except that a leak determined not
to be potentially hazardous need not be repaired, if it is monitored during the
pressure increase and it does not become potentially hazardous.
(b) Records. Each operator who
uprates a segment of pipeline shall retain for the life of the segment a record
of each investigation required by this subchapter, of all work performed, and
of each pressure test conducted, in connection with the uprating.
(c) Written plan. Each operator who uprates a
segment of pipeline shall establish a written procedure to ensure compliance
with each applicable requirement of this subchapter.
(d) Limitation on increase in maximum
allowable operating pressure. Except as provided in section 6-77-154(c), a new
maximum allowable operating pressure established under this subchapter may not
exceed the maximum that would be allowed under this chapter for a new segment
of pipeline constructed of the same materials in the same location.
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