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CFAA Fire Alarm Technician · Question

What is the minimum horizontal separation required for Class A outgoing and return conductors in a non-sprinklered building?

CAN/ULC-S524 requires Class A conductors to be separated by at least 1200mm horizontally and 300mm vertically unless permitted otherwise (e.g., entering/exiting

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Question: What is the minimum horizontal separation required for Class A outgoing and return conductors in a non-sprinklered building?

Answer options:

  • 300 mm circuits
  • 600 mm circuits
  • 900 mm circuits ✅ 1200 mm circuits

Correct answer: 1200 mm circuits

Explanation: CAN/ULC-S524 requires Class A conductors to be separated by at least 1200mm horizontally and 300mm vertically unless permitted otherwise (e.g., entering/exiting a room).

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