Electrical Design
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How to Determine the Number of Lighting Branch Circuits?
How to Determine the Number of Lighting Branch Circuits for Dwelling and Non-Dwelling Units – NEC 2023 According to NEC Article 100 – Definitions, a branch circuit refers to the…
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How to Determine the Number of Branch Circuits? – 3 Ways
How Many Branch Circuits Do You Need in a Dwelling Unit for Lighting Applications? 3-Methods with Examples Before determining the required number of circuits and associated calculations, let’s define and…
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Why Does Japan Use Both 50Hz and 60Hz in Its Power System?
Why and How Does Japan Use Both 50Hz and 60Hz Frequency in its Electrical Power Systems? Japan uses both 50Hz and 60Hz power frequencies due to historical and logistical reasons…
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What Happens if the Neutral is Lost in the Main or Subpanel?
What Will Happen When the Neutral is Broken in the Main Panel or Subpanel? The neutral wire provides a return path for current back to the power source, completing the…
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Why Must Neutral and Ground Wires Be Bonded in the Main Panel?
Why Do Neutral and Ground Conductors Need to Be Bonded in the Main Panel? According to NEC Article 250, both the neutral and ground wires must be connected only in…
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Why are Neutral and Ground Wires Separated in a Subpanel?
Why Do Neutral and Ground Conductors Need to Be Separated in a Subpanel? According to NEC Article 250, neutral and ground wires must remain separate in subpanels. Bonding (connecting) the…
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Why are Electrical Busbars Rectangular Instead of Circular?
Why is the Preferred Shape of Busbars Rectangular or Flat Rather than Circular or Round Shaped Cables? What is an Electrical Busbar? An electrical busbar is a metallic strip or…
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How Does the Grounding System Work in Aircraft & Submarines?
How is Grounding in AC/DC Systems Used for Protection in Aircraft, Ships, and Submarines? Aircraft, ships, and submarines represent significant investments and require advanced levels of electrical protection. These vehicles,…
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What is the Right Wire Size for 90A Breaker and Load?
How to Determine the Correct Wire Size for 90A Breaker and Load Circuits Based on NEC? A 90-amp breaker is commonly used for large electrical loads like heavy-duty appliances, industrial…
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What is the Correct Wire Size for 80A Breaker and Load?
How to Determine the Suitable Wire Size for a 80A Breaker and Load Circuits Based on NEC? An 80-amp breaker is typically used for high-demand devices such as large air…
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