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Hazardous Area Classifications and Protection Methods

This paper describes what the hazardous area classifications are and what specific protection methods truly mean. It will demystify the common third party approvals. This paper will also include how and when you can use a specific approval rating as well as what is and is not required to be supplied.

Class who? Division where? Group what?
This paper is intended to demystify third party approvals. Included is information addressing what the common hazardous area classifications are for a facility and what a specific protection method truly means. It also includes how and when you can use a certain approval rating as well as what the instrument supplier is and is not required to supply.

First, let's begin with definitions of the various Class, Divisions and Groups you will likely encounter.