Darb Al-Salamah wal-Aman Contracting

Jeddah · Madinah

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Electrical Panel Design Guide for Commercial Buildings

Types of Electrical Panels

Commercial buildings use main distribution boards (MDB), sub-distribution boards (SDB), and floor distribution panels.

Design Criteria

  • Accurate load calculations
  • Demand and diversity factors
  • Appropriate circuit breaker selection
  • Grounding and protection systems
  • IEC or NFPA compliance