What is a key factor in the installation and costing of electrical systems for commercial buildings?

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  1. Ignoring safety standards to reduce costs
  2. Ensuring compliance with electrical codes and standards while estimating materials and labour costs 
  3. Focusing only on decorative lighting and aesthetics
  4. Eliminating the use of protective devices

Answer (Detailed Solution Below)

Option 2 : Ensuring compliance with electrical codes and standards while estimating materials and labour costs 
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Detailed Solution

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The correct answer is option 2.

Compliance with electrical codes (like NEC, IEC) and safety standards is crucial in any commercial electrical installation. It ensures:

  • Safety of occupants and maintenance personnel.
  • Legal compliance to avoid penalties, rework, or shutdowns.
  • Accurate costing, since estimates include only approved materials and proper labor practices.
  • System reliability reduces the chance of electrical faults or fire.


Ignoring these codes can result in failed inspections, costly legal consequences, or dangerous systems.

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