# 255.715 Transmission lines: permanent field repair of welds. Each weld that is unacceptable und...

- **operation:** document
- **citation:** 16 NYCRR 255.715
- **title:** 255.715 Transmission lines: permanent field repair of welds. Each weld that is unacceptable und...
- **source type:** regulation
- **agency:** New York State Public Service Commission
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** Not available
- **summary:** Transmission and Distribution of Gas. (a) If it is feasible to take the segment of transmission line, or distribution main operating at 125 psig (862 kPa) or more in a Class 3 or 4 location, out of service, the weld must be repaired in accordance with the applicable requirements of section 255.245 of this Part.

(b) A weld may be repaired in accordance with section 255.245 of this Part while the
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(a) If it is feasible to take the segment of transmission line, or distribution main operating at 125 psig (862 kPa) or more in a Class 3 or 4 location, out of service, the weld must be repaired in accordance with the applicable requirements of section 255.245 of this Part.

(b) A weld may be repaired in accordance with section 255.245 of this Part while the segment is in service if:

(1) the weld is not leaking;

(2) the pressure in the segment is reduced so that it does not produce a stress that is more than 20 percent of SMYS; and

(3) grinding of the defective area can be limited so that at least ⅛-inch thickness in the pipe weld remains.

(c) A defective weld which cannot be repaired in accordance with subdivision (a) or (b) of this section must be repaired by installing a full encirclement welded split sleeve of appropriate design.
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