Thanks to a relatively close connection with Wall sound and lighting in our area, it seems that all our hung lights got the leads replaced at some
point. All our
axial lekolights, source 4s, Kliegl scoops, Kliegl
X-rays, and Kliegl Cycs use the same modern leads with a black plasticy fabric casing covering three wires. What is likely still
asbestos around here is everything not in plain sight. I'm starting to think the fuseboxes from earlier still are, ditto the spots, and that all of the really old Fresnels with white fabric leads are
asbestos.
FYI, one of our spots *has* failed in the same way as yours, the
wire corroded enough to make the
wire finally melt off, so now a new
crimp is in order.
Being the stubborn type, and knowing that when I leave, techs here for the next 15 years will probably not give it a second thought, I'm seriously considering yanking the wiring myself in the presence of a strong vacuum with a HEPA filter.