However, the maximum test pressure may not be more than 2.5 times the pressure determined under § 192.121 at a temperature not less than the pipe temperature during the test. No later than December 17, 2004, an operator of a covered pipeline segment must develop and follow a written integrity management program that contains all the elements described in § 192.911 and that addresses the risks on each covered transmission pipeline segment. (b) Ductile iron pipe may not be joined by brazing. [68 FR 69817, Dec. 15, 2003, as amended by Amdt. (a) General corrosion. Once any and all services have been located in the ground, their entire route should then be marked using markers or paint of a specific colour for the service it’s marking. Keep up to date with our DIY projects, tips and latest deals, © DIY Doctor Ltd 2021 All Rights Reserved. At a minimum, unless it is impracticable or unnecessary to do so, each new transmission line or replacement of line pipe, valve, fitting, or other line component in a transmission line must: (1) Be configured to reduce the risk that liquids will collect in the line; (2) Have effective liquid removal features whenever the configuration would allow liquids to collect; and. 192-98, 69 FR 48406, Aug. 10, 2004]. (2) For a temporary pipeline with an operating period of service not to exceed 5 years beyond installation, corrosion during the 5-year period of service of the pipeline will not be detrimental to public safety. 192-119, 80 FR 180, Jan. 5, 2015; 80 FR 46847, Aug. 6, 2015]. 192-119, 80 FR 181, Jan. 5, 2015; Amdt. 15, 2006]. Variations or exemptions. (2) The pipeline qualifies for use under this part according to the requirements in § 192.14. If injurious defects that are an integrity threat are found, the prefabricated unit or pressure vessel must be either non-destructively tested, re-pressure tested, or remediated in accordance with applicable part 192 requirements for a fabricated unit or with the applicable ASME BPVC requirements referenced in paragraphs (a) or (b) of this section. Found inside â Page 40... if reasonable care the work of excavating for said sewer was omitted in the course of its perat or near certain gas mains filled with formance , owing to the character of the gas , one of which was of high pressure work to be done ... 192-114, 75 FR 48603, Aug. 11, 2010, as amended by Amdt. A competent person should: assess any excavation near or below the footing of any structure, including retaining walls. Each of these affects the propagation of sound waves and influences the range of the test. (7) API Specification 5L, “Specification for Line Pipe,” 45th edition, effective July 1, 2013, (API Spec 5L), IBR approved for §§ 192.55(e); 192.112(a), (b), (d), (e); 192.113; and Item I, Appendix B to Part 192. (iii) Evaluate the potential for internal corrosion in all pipeline segments (both covered and non-covered) in the operator's pipeline system with similar characteristics to the ICDA region containing the covered segment in which the corrosion was found, and as appropriate, remediate the conditions the operator finds in accordance with § 192.933. An operator's plan must provide for evaluating the effectiveness of the ICDA process and continued monitoring of covered segments where internal corrosion has been identified. [Amdt. (2) Coating on pipe used for trenchless installation must be non-shielding and resist abrasions and other damage possible during installation. (a) Plastic pipe must be installed below ground level except as provided in paragraphs (g), (h), and (i) of this section. External corrosion control: Test stations. 192-66, 56 FR 31090, July 9, 1991; Amdt. 192-78, 61 FR 28786, June 6, 1996], Leakage surveys of a transmission line must be conducted at intervals not exceeding 15 months, but at least once each calendar year. (i) Determine the largest defect most likely to remain in the covered segment and the corrosion rate appropriate for the pipe, soil and protection conditions; (ii) Use the largest remaining defect as the size of the largest defect discovered in the SCC or ICDA segment; and. Evaluation means a process, established and documented by the operator, to determine an individual's ability to perform a covered task by any of the following: Qualified means that an individual has been evaluated and can: (b) Recognize and react to abnormal operating conditions. (a) General. [35 FR 13257, Aug. 19, 1970, as amended by Amdt. However, for cathodically unprotected distribution lines subject to § 192.465(e) on which electrical surveys for corrosion are impractical, a leakage survey must be conducted at least once every 3 calendar years at intervals not exceeding 39 months. (iii) Not more than 500 feet (153 meters) from the limits of the station. An operator must notify PHMSA in advance of using the other technology in accordance with § 192.18. (c) Each reverse current switch, each diode, and each interference bond whose failure would jeopardize structure protection must be electrically checked for proper performance six times each calendar year, but with intervals not exceeding 21⁄2 months. Additionally, if any other services are to be run near the gas supply pipe then there should be a minimum of 250mm clearance between them and the gas pipe. An operator must notify PHMSA in advance of using the other technology in accordance with § 192.18; or. (a) No person may make a plastic pipe joint unless that person has been qualified under the applicable joining procedure by: (1) Appropriate training or experience in the use of the procedure; and. Pressure limiting and regulating stations: Capacity of relief devices. External corrosion control: Cathodic protection. (b) The date, location, and description of each repair made to parts of the pipeline system other than pipe must be retained for at least 5 years. E = Longitudinal joint factor determined in accordance with § 192.113. [Amdt. (f) Components. Microsoft Edge, Google Chrome, Mozilla Firefox, or Safari. The operator must consider the results of the performance monitoring in these evaluations. (a) Each test lead wire must be connected to the pipeline so as to remain mechanically secure and electrically conductive. In performing the analyses of predicted or assumed anomalies or defects in accordance with this section, an operator must use data as follows. 192-85, 63 FR 37503, July 13, 1998]. Displaying title 49, up to date as of 11/04/2021. [35 FR 13257, Aug. 19, 1970, as amended by Amdt. Inspections by local fire marshal of cargo tank motor vehicle used to transport gas. (b) For each pipeline section, plastic pipe and components that are pulled through the ground must use a weak link, as defined by § 192.3, to ensure the pipeline will not be damaged by any excessive forces during the pulling process. The corresponding hoop stress may not exceed 72 percent of the SMYS of the pipe in Class 2 locations, 60 percent of SMYS in Class 3 locations, or 50 percent of SMYS in Class 4 locations. (2) If the pipeline has had a reportable incident, as defined in § 191.3, attributed to a girth weld failure since its most recent pressure test, then the ILI program must include a tool that can detect girth weld defects unless the ECA analysis performed in accordance with this section includes an engineering evaluation program to analyze and account for the susceptibility of girth weld failure due to lateral stresses. [35 FR 13257, Aug. 19, 1970, as amended by Amdt. As the duct essentially runs a given supply cable into a property, if hazardous gasses get into the duct then if its not sealed then they could possible leak into the interior the property. (ii) In the case of thermosetting plastic pipe, paragraph 8.5 (Minimum Hydrostatic Burst Pressure) or paragraph 8.9 (Sustained Static Pressure Test) of ASTM D2517- 00 (incorporated by reference, see § 192.7). 192-125, 84 FR 52245, Oct. 1, 2019]. The smaller design of these trucks gives less impact on their surroundings. Flanges, fittings, branch connections, extruded outlets, anchor forgings, and other components with material yield strength grades of 42,000 psi (X42) or greater and with nominal diameters of greater than 2 inches must have records documenting the manufacturing specification in effect at the time of manufacture, including yield strength, ultimate tensile strength, and chemical composition of materials. (b) No person may operate a segment to which paragraph (a)(4) of this section is applicable, unless over-pressure protective devices are installed on the segment in a manner that will prevent the maximum allowable operating pressure from being exceeded, in accordance with § 192.195. (2) Indirect inspection. [35 FR 13257, Aug. 19, 1970, as amended by Amdt. (3) In Class 3 and Class 4 locations, at crossings of major or navigable rivers, offshore, and within railroad or public highway rights-of-way, including tunnels, bridges, and overhead road crossings, 100 percent unless impracticable, in which case at least 90 percent. The description must include the potential impact radius when utilized to establish a high consequence area. for cold weld, lack of fusion, and selective seam weld corrosion; or. This combination may be used alone only in those cases where the inlet pressure on the service regulator does not exceed the manufacturer's safe working pressure rating of the service regulator, and may not be used where the inlet pressure on the service regulator exceeds 125 p.s.i. Distribution line means a pipeline other than a gathering or transmission line. 192-120, 80 FR 12779, Mar. An operator's plan must include provisions to: (1) Review SCADA safety-related alarm operations using a process that ensures alarms are accurate and support safe pipeline operations; (2) Identify at least once each calendar month points affecting safety that have been taken off scan in the SCADA host, have had alarms inhibited, generated false alarms, or that have had forced or manual values for periods of time exceeding that required for associated maintenance or operating activities; (3) Verify the correct safety-related alarm set-point values and alarm descriptions at least once each calendar year, but at intervals not to exceed 15 months; (4) Review the alarm management plan required by this paragraph at least once each calendar year, but at intervals not exceeding 15 months, to determine the effectiveness of the plan; (5) Monitor the content and volume of general activity being directed to and required of each controller at least once each calendar year, but at intervals not to exceed 15 months, that will assure controllers have sufficient time to analyze and react to incoming alarms; and. An operator must evaluate the risks associated with its distribution pipeline. Each swinging door located in an exterior wall must be mounted to swing outward. Transportation and handling of propane gas. "Backsiphonage" means a form of backflow caused by a negative or below atmospheric pressure within the potable water system. Except for cast iron or ductile iron pipe, each segment of distribution line pipe with localized corrosion pitting to a degree where leakage might result must be replaced or repaired. [35 FR 13257, Aug. 19, 1970, as amended by Amdt. The valve spacing is determined by the operating pressure, the size of the mains, and the local physical conditions. (41 MPa) where no close coiling or close bending is to be done, if visual examination indicates that the pipe is in good condition and that it is free of split seams and other defects that would cause leakage. 29-336. (2) The ends of the second sample are flattened and the entire joint subjected to a tensile strength test. (h) Except for a valve that will isolate the system under protection from its source of pressure, be designed to prevent unauthorized operation of any stop valve that will make the pressure relief valve or pressure limiting device inoperative. Each operator must keep the appropriate parts of these manuals accessible at locations where UNGSF work is being performed. 192-90, 66 FR 43524, Aug. 20, 2001; Amdt. [73 FR 62177, Oct. 17, 2008, as amended by Amdt. Each service line connection to a main must be located at the top of the main or, if that is not practical, at the side of the main, unless a suitable protective device is installed to minimize the possibility of dust and moisture being carried from the main into the service line. (a) General. F = Design factor as set forth in § 192.111 of this part. 192-78, 61 FR 28785, June 6, 1996; Amdt. (b) When the internal volume is more than 75 cubic feet (2.1 cubic meters) but less than 200 cubic feet (5.7 cubic meters): (1) If the vault or pit is sealed, each opening must have a tight fitting cover without open holes through which an explosive mixture might be ignited, and there must be a means for testing the internal atmosphere before removing the cover; (2) If the vault or pit is vented, there must be a means of preventing external sources of ignition from reaching the vault atmosphere; or. (2) Outside business districts, at intervals not exceeding 71⁄2 months, but at least twice each calendar year. An operator must establish a reassessment interval for each covered segment operating below 30% SMYS in accordance with the requirements of this section. The use of subpart J pressure testing is appropriate for threats such as internal corrosion; external corrosion and other environmentally assisted corrosion mechanisms; manufacturing and related defects threats, including defective pipe and pipe seams; stress corrosion cracking; selective seam weld corrosion; dents; and other forms of mechanical damage. An operator must notify PHMSA in accordance with § 192.18 if it cannot meet the schedule for evaluation and remediation required under paragraph (c) of this section and cannot provide safety through a temporary reduction in operating pressure or through another action. The operator must justify the use of an alternative assessment method that will address the identified threats to the covered segment. The operator must consider, at minimum, the following categories of threats (existing and potential): Corrosion (including atmospheric corrosion), natural forces, excavation damage, other outside force damage, material or weld failure, equipment failure, and incorrect operation. (b) Aboveground oil or gasoline storage tanks must be protected in accordance with NFPA-30 (incorporated by reference, see § 192.7) . 3, 1985; Amdt. Both torsional and longitudinal waves must be used and use must be documented. (b) Each segment of pipeline that becomes unsafe must be replaced, repaired, or removed from service. The public awareness message must include: (1) A description of the purpose and reliability of the pipeline; (2) An overview of the hazards of the pipeline and prevention measures used; (4) How to recognize and respond to a leak; and, [Amdt. Gas means natural gas, flammable gas, or gas which is toxic or corrosive. Domestic gas meter used to supply a property with gas. (69 kPa) gage and each main to be operated at or above 1 p.s.i. All gas supply pipes must be connected to a meter. A welder who successfully passes a butt-weld qualification test under this section shall be qualified to weld on all pipe diameters less than or equal to 12 inches. [68 FR 69817, Dec. 15, 2003, as amended by Amdt. (b) Each external protective coating which is an electrically insulating type must also have low moisture absorption and high electrical resistance. If the dates between the manufacture or construction of the pipeline segments exceeds 2 years, those segments cannot be considered as the same vintage for the purpose of defining a population under this section. [Amdt. 7, 1980; Amdt. 192-49, 50 FR 13225, Apr. 11, 2015; Amdt. (3) Notifying responsible operator personnel when notice of an abnormal operation is received. [Amdt. One final point to mention is that where a water supply pipe is to run beneath a structure, it needs to be run through sealed ducting. 192-34, 44 FR 42973, July 23, 1979; Amdt. (c) Where a threaded tap is made in cast iron or ductile iron pipe, the diameter of the tapped hole may not be more than 25 percent of the nominal diameter of the pipe unless the pipe is reinforced, except that, (1) Existing taps may be used for replacement service, if they are free of cracks and have good threads; and. (c) For the purpose of paragraphs (a)(1) and (b)(1) of this section, where pipe of a diameter included in a listed specification is impractical to use, pipe of a diameter between the sizes included in a listed specification may be used if it: (1) Meets the strength and design criteria required of pipe included in that listed specification; and. ASTM A106/A-106M - Steel pipe, “Standard Specification for Seamless Carbon Steel Pipe for High Temperature Service” (incorporated by reference, see § 192.7). The operator must consider the results of the performance monitoring in these evaluations. 192-74, 61 FR 18517, Apr. Utility pipe and cable plans available from utility suppliers. (2) As applicable, additional lengths of line described in the fourth column to provide a safety buffer: [Amdt. (ii) For each sample cross section, a minimum of 13 readings (three for each heat affected zone, three in the weld metal, and two in each section of pipe base metal). Alternatively, operators may submit reports by mail, fax or e-mail to the Office of Pipeline Safety, Pipeline and Hazardous Materials Safety Administration, U.S. Department of Transportation, Information Resources Manager, PHP-10, 1200 New Jersey Avenue, SE., Washington, DC 20590-0001; fax (202) 366-4566; e-mail InformationResourcesManager@phmsa. Connecting rods and pistons. However, corroded pipe may be repaired by a method that reliable engineering tests and analyses show can permanently restore the serviceability of the pipe. Tracer wire may not be wrapped around the pipe and contact with the pipe must be minimized but is not prohibited. The reduced MAOP must account for differences between discharge and upstream pressure on the pipeline by use of either the lowest value for the entire pipeline segment or the operating pressure gradient (i.e., the location specific operating pressure at each location); (ii) Conduct patrols in accordance with § 192.705 paragraphs (a) and (c) and conduct instrumented leakage surveys in accordance with § 192.706 at intervals not to exceed those in the following table 1 to § 192.624(c)(5)(ii): (iii) Under Method 5, future uprating of the pipeline segment in accordance with subpart K is allowed. (6) Cracks. (iii) Seals and bonds in a manner that meets the strength, environmental, and chemical compatibility requirements of §§ 192.53 (a) and (b) and 192.143. All materials employed for pipe and components must be designed to meet the particular conditions of service and the following: (1) Each takeoff connection and attaching boss, fitting, or adapter must be made of suitable material, be able to withstand the maximum service pressure and temperature of the pipe or equipment to which it is attached, and be designed to satisfactorily withstand all stresses without failure by fatigue. An operator must maintain for review during inspection: (1) Records that demonstrate compliance with the requirements of this section; and. Pacific Tek founders have created innovations, such as the Angled Vacuum Excavator Tank (1997) and 180° Swivel Mount Valve Operator (1999). For example, if you were running a new gas main to your property, it may be possible for you to dig the trench for the new supply line where it runs over your own private land, this can in some instances save you a fair chunk of money. Each distribution system that is supplied from a source of gas that is at a higher pressure than the maximum allowable operating pressure for the system must -, (1) Have pressure regulation devices capable of meeting the pressure, load, and other service conditions that will be experienced in normal operation of the system, and that could be activated in the event of failure of some portion of the system; and. (d) Data analysis. (3) Direct examination. (a) Except as provided in paragraphs (d) and (e) of this section, each operator of a buried pipeline must carry out, in accordance with this section, a written program to prevent damage to that pipeline from excavation activities. Alternative maximum allowable operating pressure for certain steel pipelines. carried out near our gas mains, as thereâs potential for heat damage to plastic pipeline/coatings. [Amdt. III. 192-124, 83 FR 58719, Nov. 20, 2018]. Each operator must keep records necessary to administer such procedures and review and update these manuals at intervals not exceeding 15 months, but at least once each calendar year. 192-85, 63 FR 37503, July 13, 1998; Amdt. The records must include copies of superseded integrity management plans developed under this subpart. I. (a) Except as provided in paragraphs (b) and (c) of this section, each new transmission line and each replacement of line pipe, valve, fitting, or other line component in a transmission line, must be designed and constructed to accommodate the passage of instrumented internal inspection devices in accordance with NACE SP0102, section 7 (incorporated by reference, see § 192.7). Abandonment or deactivation of facilities. Found inside â Page 20The 12 - inch , cast - iron , highpressure gas main was ruptured when an 8 - inch steel I - beam pile was driven through the pipe at a construction site . Within minutes , natural gas at 10 - psig pressure migrated through the ground ... The voltage reading after the immediate shift must be used as the base reading from which to measure polarization decay in paragraphs A(3), B(2), and C of section I of this appendix. DEAN THOMPSON HIGH POINTS AWARD: Named after the National Sprint Car Hall of Famer. 192-119, 80 FR 178, 182, Jan. 5, 2015; 80 FR 46847, Aug. 6, 2015].
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