It seems to make no sense to me that integrators are using the cheapest & sub-standard cables (to wire electromagnetic locks for example) because of lowest price, when in the long run it is one of the hardest expenses to justify for overhauling/renewal facing the customer. The customer always say: why if yesterday it was working, today it no longer works, is it because of the cables you say ??? Those cables have been there forever and they worked ....
Isn´t it cheaper to change a maglock or replace a camera which is at "hands-reach" rather than pull out all the old cables stucked in old-aging conduits most of the time ??
That said, what is the average lifespan of cables under normal conditions, excluding places that are near the bodies of water (salinity, humidity, corrosion, etc.)