ISBN 978-0-7506-6396-0. (原始内容存档于2022-05-04). Deb, Anjan K. Power Line Ampacity System. CRC Press. 2000-06-29: 169–171 [2021-11-04]. ISBN 978-0-8493-1306-6
PROTECTIVE SYSTEMS IEEE 848 Standard Procedure for the Determination of the Ampacity Derating of Fire-Protected Cables (页面存档备份,存于互联网档案馆). UL 2196 Fire-Resistive