IEEE Approved Draft Standard for Procedure for the Determination of the Ampacity Derating Factor for Fire-Protected Cable Systems
STANDARD published on 24.12.2026
Designation standards: IEEE P848
Publication date standards: 24.12.2026
Approximate weight : 300 g (0.66 lbs)
Country: International technical standard
Category: Technical standards IEEE
Revision Standard - Active - Draft.
A detailed test procedure is provided for determining the ampacity derating factor in the following cable installation configurations: block-out or sleeve-type cable penetration fire stops; conduits covered with a protective material; tray covered with a protective material; cable directly covered or coated with fire-retardant material; and free-air drops enclosed with a protective material.
ISBN: 979-8-8557-3705-9, 979-8-8557-3705-9
Number of Pages: 32
Product Code: STDUD29004, STDAPE29004
Keywords: ampacity derating factor, cable penetration fire stops, electrical separation wrap systems, fire-protected cable system, fire-protected conduits, IEEE 848
Category: Insulated Conductors
Draft Number: P848/D2a, Jun 2026 - UNAPPROVED DRAFT, P848/D2a, Jun 2026 - APPROVED DRAFT