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In oil & gas industries and petrochemical industries, there
are classification of zones like zone 0, zone 1, zone 2. Is
there any differences in voltages or power supply supplied
for the process instruments, control instruments depending
on the zones



In oil & gas industries and petrochemical industries, there are classification of zones like z..

Answer / wael mohamed

yes,according to the frequencies of gas in different areas

Is This Answer Correct ?    2 Yes 3 No

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