Hydrogen Room Ventilation Hold Point
Hydrogen spaces need special ventilation, exhaust high points, ignition-source coordination, and AHJ verification.
Stop if
- This area involves hydrogen. Do we verify exhaust high point, controls, and classified-area requirements with the approved detail?
Watch out
- Do not relocate intakes/exhausts or use non-approved equipment in hazardous zones.
Check
- Confirm gas type, exhaust location, fan/control sequence, electrical classification, alarm interface, and AHJ direction.
Steps
- Identify whether this is normal ductwork or a controlled/special condition.
- Confirm gas type, exhaust location, fan/control sequence, electrical classification, alarm interface, and AHJ direction.
- Get the current drawing/detail/spec/submittal before changing routing, material, access, or support.
- Bring photos, location, and what you checked to the foreman before closing or covering the work.
Say this to your foreman
This area involves hydrogen. Do we verify exhaust high point, controls, and classified-area requirements with the approved detail?
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