Basic Wiring Practice – Lecture 5 | Fuses, Relays & Types of Wiring | Electrician 1st Year

Описание: In this video, we explain Basic Wiring Practice – Lecture 5 for Electrician 1st Year students.

This lecture covers fuse safety devices, relay working principles, wiring systems (domestic & industrial), and cable size selection rules in detail.

📚 Topics Covered in Lecture 5:
🔹 Fuse & Safety Devices

✔ Fuse as a Safety Device
✔ Important Terms & Definitions
✔ Difference Between Key Fuse Terms
✔ Fusing Factor
✔ Types of Fuses
✔ Rewirable Fuse – Disadvantages
✔ Cartridge Fuse
✔ HRC Fuse
✔ Diazed Fuse
✔ Types of Diazed Fuse
✔ Time Delay (Delayed Action)

🔹 Relays

✔ What is Relay
✔ Working Principle of Relay
✔ Relay Sensitivity
✔ Classification of Relays
✔ Types of Electromagnetic Relays
✔ Voltage Sensing Relay
✔ Different Types of Relays Explained

🔹 Wiring Systems

✔ Types of Domestic Wiring
✔ Types of Industrial Wiring
✔ Detailed Explanation
✔ Advantages & Disadvantages of Each Wiring System

🔹 Cable Size Selection

✔ Basic Rules of Cable Selection
✔ Current Carrying Capacity
✔ Voltage Drop Consideration
✔ Safety Factors
✔ Practical Explanation

This lecture is very important for:

• ITI Electrician Theory Exams
• Wireman / Supervisor Exams
• Practical Installation Work
• Safety & Protection Devices Understanding
• Viva Questions

🎓 Trade: Electrician
📘 Year: 1st Year
📌 Lecture: 5

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