Hi Group
I am hoping that I can get your opinions with an issue regarding the correction factor of power supply cords. For instance, in the NEC table 310-17, for single conductors in free air, there is a chart at the bottom of the table that allows you to determine how to factor in the ambient temperature. However, for a flexible power cord, the table 400-5 does not have any correction factor table. At first I thought that this is because cords always have a temperature rating marked on them, but then I recall that most (if not all) single conductors have this marking too.... Is there a need to "de-rate" a power cord's current rating based on the expected ambient temperature? If so, where in the NEC did I miss this fact? If not, why not? Thanks for your help, Kelly **************************************************************** Kelly Tsudama Cisco Systems [email protected] 408-527-0216 408-525-9150 fax 408-322-9024 pager ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
