Document: 10 CFR Part 50
Document ID: cfc9c7b0-bbcd-4774-97ce-900cbc760408
Document Type: cfr
Title: Codes and standards.
Source: 10 CFR Part 50
Source URL: https://www.ecfr.gov/current/title-10/part-50/section-50.55a
Revision Date: 
Chapter: 
Section ID: 50.55a
CFR Part: 50
CFR Title: 10

Content:
When performing fusing procedure qualification tests in accordance with 2017 Edition of BPV Code Section III XXVI-2300 and XXVI-4330, the following essential variables must be used for the testing of electrofusion joints: ( 1 ) Joint Design: A change in the design of an electrofusion joint. ( 2 ) Fit-up Gap: An increase in the maximum radial fit-up gap qualified. ( 3 ) Pipe PE Material: A change in the PE designation or cell classification of the pipe from that tested (XXVI-2322(a)). ( 4 ) Fitting PE Material: A change in the manufacturing facility or production lot from that tested (XXVI-2322(b)). ( 5 ) Pipe Wall Thickness: Each thickness to be fused in production (XXVI-2310(c)). ( 6 ) Fitting Manufacturer: A change in fitting manufacturer. ( 7 ) Pipe Diameter: Each diameter to be fused in production (XXVI-2310(c)). ( 8 ) Cool-down Time: A decrease in the cool time at pressure from that qualified. ( 9 ) Fusion Voltage: A change in fusion voltage. ( 10 ) Nominal Fusion Time: A change in the nominal fusion time. ( 11 ) Material Temperature Range: A change in material fusing temperature beyond the range qualified. ( 12 ) Power Supply: A change in the make or model of electrofusion control box (XXVI-2310(f)). ( 13 ) Power Cord: A change in power cord material, length, or diameter that reduces current at the coil to below the minimum qualified. ( 14 ) Processor: A change in the manufacturer or model number of the processor. (XXVI-2310(f)). ( 15 ) Saddle Clamp: A change in the type of saddle clamp. ( 16 ) Scraping Device: A change from a clean peeling scraping tool to any other type of tool. ( xii ) Section III condition: Certifying Engineer. When applying the 2017 and later editions of ASME BPV Code Section III, the NRC does not permit applicants and licensees to use a Certifying Engineer who is not a Registered Professional Engineer qualified in accordance with paragraph XXIII-1222 for Code-related activities that are applicable to U.S. nuclear facilities regulated by