Hi i=p/u, It is in the regulations but as is common with IET it's a bit cryptic:
Scope, Object and Fundamental Principles,
110.1 ...
"The regulations are intended to be applied to electrical installations generally, but, in certain cases, they may need to be supplemented by the requirements or recommendations of other British Standards or by the requirements of the person ordering the work." "(xiii) Electrical equipment for explosive gas atmospheres - BS EN 60079"and
115.1 "For installations in premises over which a licensing or other local authority exercises a statutory control, the requirements of that authority shall be ascertained and complied with in the design and execution of the installation."
The Petrol Station bible is “The IP/APEA Blue Book”
If you want to get involved in this work then start by getting hold of a copy of "Design, Construction, Modification, Maintenance and Decommissioning of Petrol Filling Stations" 2nd Edition. Commonly known as "The Blue Book". This will tell you exactly what you need to know. Not cheap though, ÂŁ120 new.
Additional Regulations:
Within the European Community, electrical installations in potentially explosive atmospheres have to satisfy the requirements of European ATEX Directives. Two European Directives of particular interest are Directive 94/9/EC and Directive 99/92/EC, which are also known as ATEX 100a and ATEX 137 respectively.
ATEX 137 is a European Directive for the protection of workers potentially at risk from explosive atmospheres and ATEX 100a covers products intended for installation in hazardous areas. Each Directive sets out minimum requirements and although they cover different areas and are intended to achieve different objectives, they compliment each other.
Statutory Regulation:
Petroleum (Consolidation) Act 1928 (PCA) – Dangerous Substances & Explosive Atmospheres Regulations 2002 (DSEAR) – Petrol filling stations
Then there are the qualifications required:
[FONT=&]Comp'Ex' Unit EX07, Preparation & Installation of electrical installations at Petrol Filling Stations.
Comp'Ex' Unit EX08, Inspection, test and maintenance of electrical installations at Petrol Filling Stations
These will set you back ÂŁ1K to 2K
Check your insurance. A lot of insurers don't want to know you if you work in hazardous areas. Others may want you to have the Comp 'Ex' qualifications. You can be sure that it will be more expensive though.[/FONT]