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:
service in light-water-cooled nuclear power plants to ensure that the cables, field splices, and connec tions can perform their safety-related function sub ject to the following: 1. In lieu of Section 1.3.4.2.3, "Other Design Basis Events," -the following should be used: "The remainder of the complete spectrum of design basis events (e.g., events such as a steam line break) shall be considered in case they represent different types or more severe hazards to cable operation." 2. In lieu of Section 1.3.5.3, "Test Design Basis Event," the following should be used: ""Type tests for design basis event conditions shall consist of subjecting non-aged and aged cables, field splices, and connections to a se- quence of environmental extremes that simulate the most severe postulated conditions of a design basis event and specified conditions of installation. Type tests shall demonstrate margin by application of multiple transients, in creased level, or other justifiable means. Satisfactory performance of the cable will be evaluated by electrical and physical measure ments appropriate to the type of cable during or following the environmental cycle, or both. The factors for margin given in Section 6.3.1.5 of IEEE Std 323-1974 shall be used where ap plicable. "The values of pressure, temperature, radia tion, chemical concentrations, humidity, and time in IEEE Std 323-1974 do not represent ac ceptable limits for all nuclear power stations. The user of this standard shall ensure that the values used in the required type tests represent acceptable limits for the service conditions in which the cable or connections will be instal led." 3. In lieu of Section 2.1, "Introduction," the fol lowing should be used: "Type tests deqcribed in this document are methods that shall be used to qualify 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