Betekenis van:
ventilation shaft

ventilation shaft
Zelfstandig naamwoord
    • a shaft in a building; serves as an air passage for ventilation



    1. ventilation and air-conditioning rooms; windlass room; steering gear room; stabiliser equipment room; electrical propulsion motor room; rooms containing section switchboards and purely electrical equipment other than oil-filled electrical transformers (above 10 kVA); shaft alleys and pipe tunnels; spaces for pumps and refrigeration machinery (not handling or using flammable liquids),