Document: NRC Regulatory Guide
Document ID: 503ea0ef-6ca4-4230-99f2-c94521f9e62a
Document Type: regulatory_guide
Title: Qualification Tests of Electric Cables, Field Splices, and Connections for Light-Water-Cooled Nuclear Power Plants
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0037/ML003740128.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.131
CFR Part: 
CFR Title: 

Content:
alify electrical cables, field splices, and connections for use in nuclear power generating stations. Tests of the cable or connection assembly, as applicable, shall then supplement the cable tests in order to qualify the connections and other aspects uni que to planned usage. "The values of pressure, temperature, radia tion, chemical concentrations, humidity, and time indicated in IEEE Std 323-1974 do not represent acceptable limits for all nuclear power generating stations. "The user of this guide shall ensure that the values used in the required type tests represent acceptable limits for the service conditions in which the cable, or connections, or both, will be installed. "Results of prior tests that are being used as the bases for the present tests shall be referenced in the documentation." 4. In lieu of Section 2.3.2, "Long-Term Physical Aging Properties," the following should be used: "Aging data shall be submitted to establish long-term performance of the insulation. Data may be evaluated using the Arrhenius tech nique. A minimum of 3 data points, including 136°C and two or more others at least 10°C apart in temperature, shall be used. "If there is not sufficient evidence that ac celerated aging techniques can reliably produce 1.131-2 I_ end-of-life conditions, the following ongoing qualification procedure should be used: "Ongoing Qualification Procedure-Some types of cables, field splices, and connections (hereafter referred to only as cables) may not respond in a representative manner to ac celerated aging techniques to establish end-of design-life conditions. Consequently, the qualified life would be less than the required design life. There are two suggested methods of achieving long-term (design life) qualification: (a) After a planned period less than the qualified life of the cable has been reached, representative cables should be replaced with new cables and the removed cables subjected to a qualification test similar to that performed prior to