kenaslan
Senior Member
- Location
- Billings MT
Are the derating sched used together, or does the highest take presidence.
I have a cable tray consisting of 8 cables with a total of 24 curent caring conductors. The ambient temp is 40C Using #1 Teck90 cable good for 140A temp derating at 40C 126A. Now the question is do I derate the .7 from the 140A or the 126A? I believe I need to use the 126A for a total derating of 88.2A
BTW I am using the CEC, the project is in Canada
Thanks
Ken
I have a cable tray consisting of 8 cables with a total of 24 curent caring conductors. The ambient temp is 40C Using #1 Teck90 cable good for 140A temp derating at 40C 126A. Now the question is do I derate the .7 from the 140A or the 126A? I believe I need to use the 126A for a total derating of 88.2A
BTW I am using the CEC, the project is in Canada
Thanks
Ken