Interpretation Response #PI-75-0106 ([Illinois Commerce Commission] [Mr. Harold E. Shutt])
Below is the interpretation response detail and a list of regulations sections applicable to this response.
Interpretation Response Details
Response Publish Date:
Company Name: Illinois Commerce Commission
Individual Name: Mr. Harold E. Shutt
Location State: IL Country: US
View the Interpretation Document
Response text:
June 12, 1975
Mr. Harold E. Shutt
Chief Engineer - Gas & Electric
Illinois Commerce Commission
527 East Capitol Avenue
Springfield, Illinois 62706
Dear Mr. Shutt
This refers to your letter of May 26, 1975, notifying us of your advice to the Central Illinois Public Service Company (CIPSC) about uprating a distribution line to a pressure permitted by Section 192.619(a)(2)(ii) of 100 psig, or more, that will produce a hoop stress of less than 30 percent of SMYS. You stated, that in accordance with Advisory Bulletin No. 75-2, the line may be uprated "without performing a strength test."
While your advice is not incorrect, we believe that it may be misleading. By informing CIPSC that a "strength test" is not required in uprating to a pressure permitted by Section 192.619(a)(2)(ii), CIPSC may not understand that the published interpretation of this Office is that some type of pressure test is required, whether it be a strength test or a leak test. The purpose of the interpretation to which you refer in Advisory Bulletin No. 75-2 is to clarify this point. Accordingly, we suggest that you so notify CIPSC.
Sincerely,
Original signed by
Joseph C. Caldwell
Director
Office of Pipeline Safety