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:
ble specimens." 7. In lieu of Section 2.5.2.2, the following should be used: "The fire test provisions of the standard are useful in screening out cable insulation materials that are inadequately self extinguishing, but they shall not be construed as qualification of any installed cable system con figuration. If field splices are to be used in cable trays, special provisions -shall be made to demonstrate that the fire retardant properties of the cable are not altered unacceptably in an adverse way by the field splice." 8. Section 2.5.4.2-Vertical tray configuration should be used and understood to mean perpen dicular to the plane of the horizon. 9. In lieu of Section 2.5.4.4, the following should be used: "The gas burner flame source shall consume propane gas so as to release approximately 70,000 Btu per hour at an air-gas ratio of 5 to 1. Natural grade propane shall be used. The procedure detailed below shall be followed:" 10. In lieu of the first sentence of Section 2.5.4.4.1, the following should be used: "The ribbon gas burner' shall be mounted horizontally such that the flame impinges on the specimen midway between the tray rungs and so that the burner face is in front of and 4 inches from the cable and approximately 2 feet above the bottom of the tray." 11. In lieu of Section 2.5.4.4.3, the following should be used: "Flame size will normally be achieved when the propane flow is 27.8 standard ft3 per hour and the air flow is 139 standard ft' per hour." 12. Section 2.5.4.5 is not endorsed by this regulatory guide. 13. The recommendations indicated by "should" and the options indicated by "may" in the sections of IEEE Std 383-1974 indicated below have sufficient importance to be treated the same as requirements of the standard: a. Section 1.3.1, "Cable Description" b. Section 1.3.2, "Field Splices or Connection Description" c. Section 1.3.4.1, "Meeting Service Conditions"; the first sentence. 'An American Gas Furnace Co. 10-in, 11-55 drilling, ribbon-type,