RECOMMENDED PROTECTION METHODS FOR ZONE 1

Motors- Ex d, Ex p

Transformers & Capacitors - Ex d

Control & Instrument Transformers - Ex i

Lighting Fitting - Ex d

Switch Gear & Control Gear - Ex d

Communication/ Telephone equipment/Meters - Ex i

Portable Hand Lamps- Ex i

*Ex o, Ex q type equipment are also allowed for use as per IS 5571

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