IS 5571 : 2009 Guide for Selection and Installation of Electrical Equipment in Hazardous Areas (Other than Mines)

1 Scope

1.1 General

This standard contains the specific requirements forthe design, selection and erection of electricalinstallations in hazardous area associated withexplosive gas atmospheres.

These requirements are in addition to those as requiredfor installations in non-hazardous areas, as perapplicable codes and statutory regulations.

This standard applies to all electrical equipment andinstallations in hazardous areas whether permanent,temporary, portable, transportable or hand-held.

It applies to installations at all voltages.

This standard does not apply to,

a) electrical installations in mines susceptible tofiredamp;

b) electrical installations in areas where thehazard is due to combustible dusts or fibres;

c) inherently explosive situations, for exampleexplosives manufacturing and processing; and

d) rooms used for medical purposes

Note - This standard may apply to electricalinstallations in mines where explosive gas atmospheresother than firedamp may be formed and to electricalinstallations in the surface installation of mines.

1.2 Statutory Requirements

The equipment and installations in hazardous areasshall in addition, meet the applicable statutory authorityrequirements/regulations, if any.

2 References

The following standards are necessary adjunct to thisstandard: