Limiting Tension for Conductors and NESC

I'd Google for the tables you want specifically and that might help you track down the appropriate book for your needs.

I tried that. It just takes me to OTHER references of the table. Weird how the tables aren't put up.

Actually, the NESC does define limiting tension for overhead conductors but it is done indirectly by defining wind and ice loading, sag and swing clearances, safety clearances, structure loading, etc. for various voltages, construction grades and Rules.

Sags and tensions for open supply conductors, for example, is defined in NESC, "Conductor sags shall be such that, under the assumed loading of Rule 251 for the district concerned, the tensions of the conductor shall be not more than 60% of its rated breaking strength. Also the tension at 60° F (15°C), without external load, shall not exceed the following percentages of the conductor rated breaking strength:

Initial unloaded tension 35%

Final unloaded tension 25%"

(And there are exceptions).

By the way, if your NESC "Handbook" is ANSI C2 it's the same as the one on the IEEE site. The NESC is published by the IEEE and is the responsibility of IEEE Accredited Standards Committee C2.

Nothing is ever easy.

Good luck.