Qatar, British Standard-RCBO, hazardous

[tommom]

I live in U.S., doing design work in Qatar but am a little mystified by differences between Qatar (Kahramaa)/British Standard requirements and NEC/Nema/ansi/UL-land design.
1) Anyone have experience with RCBO requirements? Is there a reference book which explains this in more detail than the BS or Kahramaa?
2) Anyone point me to a reference on hazardous locations in BS-land?

Thanks. Tom

 

[RRaghunath]

IEC 61009 is for RCBOs (Residual current operated Circuit breakers with integral overcurrent protection) could be a good reference and I am sure the same is adopted by BSI too.