BQT6904400-01

Assembly of the Pressure Relief Duct

DANGER
hazard of electric shock, explosion, or arc flash
  • Ensure that the pressure relief duct assembly is installed in each cubicle as per the design specifications.
  • Ensure to apply the recommended tightening torque to the pressure relief duct assembly as per ST0171.
  • Ensure that the appropriate safety stickers are affixed to the pressure relief duct assembly.
Failure to follow these instructions will result in death or serious injury.

In case of any internal arc fault, the pressure relief duct on the upper side of the cubicle helps to evacuate the hot gases from the cubicle. In general, when the pressure relief duct is installed the switchgear can be accessed based on internal arc classification from the front, rear and both sides.

NOTE:
  • Before mounting the pressure relief duct, comply with the appropriate specifications in the customer-specific switchgear documentation.

  • Prior to installing the pressure relief duct, observe the relevant information in the customer-specific switchgear documentation.

QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and other countries.

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