{"operation":"document","citation":"PI-71-0113","title":"Hawaii Public Utilities Commission — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1971-06-15","effective_on":null,"summary":"PI-71-0113 response to Hawaii Public Utilities Commission concerning 192.227.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-71-0113.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-71-0113.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-71-0113","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1971/g71-06-15_Yuen_192.227-h.pdf","body":"<<<PAGE 1>>>\n\nPI-71-0113\nJune 18, 1971\nMr. LeRoy Yuen\nUtilities Administrator\nHawaii Public Utilities Commission\nP. O. Box S41\nHonolulu, Hawaii 56809\nDear Mr. Yuen:\nThis is in reply to your letter of May 17 1971, concerning qualification of welders who weld on pipe being operated at\nstress levels of less than 20% of SMYS.\nWe agree with your interpretations that a, welder who welds on pipe being operated At less than 20% of SMYS need\nonly fulfill the requirements Of 49 CFR, Section 192.227(c). However, we cannot agree with the statement in the third\nparagraph of Mr. Anderson's letter where he states they “Consider the basic test to be all inclusive.\" Section 192.227(c)\nrequires that welders who' make welded service line connections to mains qualify under Section II of Appendix C in\naddition to the basic test of Section I.\nIf we can be of further assistance, please let us know.\nSincerely,\nOriginal signed by:\nJoseph C. Caldwell\nActing Director\nOffice of Pipeline Safety\n\n<<<PAGE 2>>>\n\nState of Hawaii\nPublic Utilities Commission\nDepartment of Regulatory Agencies\nP.O. Box 541\nHonolulu, Hawaii 96809\nMay 17, 1971\nOffice of Pipeline Safety\nDepartment of Transportation\n400 Sixth Street, S. W.\nWashington, D. C. 20590\nAttention: Mr. Joseph Caldwell, Acting Director\nGentlemen:\nThe Honolulu Gas Company, Ltd., has requested verification of their interpretation of paragraph 192.227 (a) of\n49 USC Part 192 as shown in the accompanying Honolulu Gas Company letter dated April 22, 1971.\nThe Honolulu Gas Company system was designed for a maximum operating pressure of 125 psi but operates at a\nmaximum of 60 psi. The calculated hoop stresses at these pressures for the maximum sized pipes are 16 and 7.66\npercent, respectively, of the specified minimum yield strength.\nSince these hoop stresses are below 20 percent of the specified minimum yield strength, we are in agreement\nwith their interpretation but would appreciate your opinion.\nVery truly yours,\nLeRoy Yuen\nUtilities Administrator\n\n<<<PAGE 3>>>\n\nHonolulu Gas\n1050 Bishop Street\nP.O. Box 3379\nHonolulu, Hawaii 96301\nApril 22, 1 971\nThe Honorable Chairman and Members of the Public Utilities Commission\nHonolulu\nHawaii\nAttention: Mr. Vernon Nunokawa\nExecutive Director\nGentlemen:\nWe would like verification of our interpretation of paragraph 192.227 (a) of 49 USC Part 192, and the paragraphs\nreferenced therein.\nSince the Honolulu Gas Company's distribution system is operated at a pressure that produces a hoop stress of\nless than 20 percent of the specified minimum yield stress, we feel that we qualify for the exception (c) as noted in\nparagraph 192.227 (a). We specifically refer to the referenced Section I Basic Test of \"Appendix C, Qualification for\nWelders of Low Stress Level Pipe\".\nWe further consider the basic test to be all inclusive for the minimum requirements for qualification for welders of low\nstress level pipe.\nYour consideration of this matter and verification of our interpretation that we qualify for the exception and\nthat the test is all inclusive will be appreciated.\nVery truly yours,\nE.F. Anderson, Jr.\nDirector\nMaterial & Distribution","truncated":false,"body_characters":3128}