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UL-Class 1 Div 1, need tips for IS

thread14-316929

UL-Class 1 Div 1, need tips for IS

UL-Class 1 Div 1, need tips for IS

(OP)
Hi,
I am designing a motherboard for a telecommunication device that will be placed next to a crude oil tank,very close to it, sometimes on top, what intrinsic safety precautions can i include in my circuit to prevent an explosion.
They work with low voltages, the highest of which is 24V and low about 3.3V.
Thanks.
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