ET 209: A Recommended Maintenance & Inspection Routine for Electrical Installations in Potentially Explosive Atmospheres

Electrical installations in hazardous areas possess features specially designed to render them suitable for operations in such atmospheres. It is essential for reasons of safety in those areas that, throughout the life of such installations, the integrity of those special features is preserved. They therefore require initial inspection and verification followed by periodic inspections thereafter. This routine is intended for the inspection and maintenance of electrical installations within hazardous areas only. It does not include conventional requirements for electrical installations, nor testing and certification of electrical apparatus. It is not intended to be applied to installations in mines. This document should be read in conjunction with ET101, ET105 and ET202.