Steve,
I sense your frustration, so do others it would seem;
From pg 6 sep.-oct IAEIThere appears to be interest, especially in the international area, to promote the use of performance based electrical safety code rules instead of those of a prescriptive tyoe. While that concept may sound good when described by promoters of that concept, it is not a practical approach by itself. Without clear guidlines of a prescriptive code with readily definable parameters on how to achieve the objective on performance based rules, enforcement of those rules is extreemly difficult. If a roadway sign states " Drive at a Safe Speed", is it possible to enforce taht rule? While it can be agreed that the stated rule is an ideal one, it is easily recognized that drivers will not interpet that general rule as the same.
seems to hit the 'nail' on the head....As an example, performance requirements are stated in 250.4 as to the objectives of grounding and bonding and reference is made to the remainder of art 250 for the rules needed to accomplish those goals. This combination of the two types of rules is a workable solution.
really? , it would seem debated constantly.........