Got a question about Class I Div 1; I need to install a handhole adjacent to a manufacturing facility. The client indicates that below grade in the area where the handhole is to be installed is Class I Div 1. I don't see any handholes specically rated for Class I Div1. Are handholes not rated and explosionproof seals required inside the handhole or is nothing required since I'm not going above ground at the handhole?
Handhole for Class I Div 1
- Thread starter qms006
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