⚡ Voltage Grades of Cables

Cables are categorized based on the maximum voltage they can safely carry.

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🧪 What is Cable Insulation?

Cable insulation is a non-conductive material that surrounds the conductor (wire) to prevent electric shock, short circuit, and damage. It ensures that electricity flows only through the conductor.

⚠️ Safety Tips While Working with Underground Cables

• Always de-energize the line before testing or joining

• Use proper insulated gloves and tools

🧪 Testing of Underground Cables

Before using or after repairing, cables must be tested to ensure safety and performance.

🔗 Types of Joints in Underground Cables

When a cable is too long or needs repair, joints are used. These must be strong, waterproof, and insulated.

🧰 Types of Underground Cables

Structure of an Underground Cable

Underground cables are made up of various layers to ensure safety and durability. The main parts include:

🔍 What is an Underground Cable?

An underground cable is a type of insulated conductor that carries electrical power below the earth's surface. It is well-protected from weather, accidents, and vandalism.

• Solder (धातु मिश्रधातु)

• Flux (फ्लक्स – साफ और चिपकाने वाला पदार्थ)

Let’s understand both in detail.