Sparky66,
Stacking or bundling in excess of 24" requires derating per 310-15(b)(2)(a). I repeatedly see new residential construction home runs stacked 8-10 thick on the top sill (sole?) plate in basements. Derated ampacities are probably less than 50% in most cases. I dont know how these pass.
[This message has been edited by Redsy (edited 05-31-2001).]
