Refer to the following International Electrotechnical Commission
publications or equivalent for reference to appropriate personnel qualification
criteria:
IEC 60079-14:2007 Explosive atmospheres − Part 14: Electrical
installations design, selection and erection.
IEC 60079-17:2007 Explosive atmospheres − Part 17: Electrical
installations inspection and maintenance.
IEC 60079-19: 2006 Explosive atmospheres − Part 19: Equipment
repair, overhaul and reclamation.