IEEE Approved Draft Recommended Practice for General Principles for Temperature Limits in the Rating of Electrical Equipment and for the Evaluation of Electrical Insulation
STANDARD published on 24.6.2026
Designation standards: IEEE P1
Publication date standards: 24.6.2026
Approximate weight : 300 g (0.66 lbs)
Country: International technical standard
Category: Technical standards IEEE
Revision Standard - Active - Draft.
This recommended practice is intended to serve in the preparation of standards that are principally concerned with the thermal endurance of electrical insulating materials and simple combinations of such materials, the establishment of limiting temperatures of electrical Insulation systems, and the provision of general principles for thermal classification of electrical insulation systems
ISBN: 979-8-8557-3102-6, 979-8-8557-3102-6
Number of Pages: 34
Product Code: STDUD28628, STDAPE28628
Keywords: aging factors, EIM, EIS, electrical insulating material, electrical insulating system, electrical properties, electrical stress, environmental stress, factor of influence, hottest-spot temperature, mechanical properties, mechanical stress, observable temperature rise, relative temperature index, RTI, temperature index, temperature limits, thermal aging, thermal evaluation, TI, voltage stress
Category: Insulation Coordination
Draft Number: P1/D5, Jan 2026 - UNAPPROVED DRAFT, P1/D5, Jan 2026 - APPROVED DRAFT