Does BS5266 distinguish between Emergency and Escape lighting?

No - but it does distinguish between Emergency Lighting and Emergency Escape Lighting:

emergency lighting
lighting provided for use when the supply to the normal lighting fails

emergency escape lighting
that part of emergency lighting that provides illumination for the safety of people leaving a location or attempting to terminate a potentially dangerous process before doing so

Regards

-------------------------
E & OE

Appreciated, are the testing requirments the same?

There is no finite answer to this as it depends on the systems in place, the level and frequency of inspection should be outlined in your 'Fire Safety Log Book' as a result of an FRA, and could range from a daily walk around, a monthly test and a three yearly discharge test, if you do not have a Log Book in place or had an FRA might I suggest you or the organisation involved arrange one at the earliest opportunity.

regards

-------------------------
"Take nothing but a picture,
leave nothing but footprints!"
-------------------------
"Oh! The drama of it all."
-------------------------
"You can throw all the philosophy you like at the problem, but at the end of the day it's just basic electrical theory!"
-------------------------