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2.1.1 Explain why copper is suitable for the manufacturing of electrical cables - NSC Agricultural Technology - Question 2 - 2020 - Paper 1
Question 2
2.1.1 Explain why copper is suitable for the manufacturing of electrical cables. Copper is an ideal material for electrical cables due to several key properties. Fi... show full transcript
Worked Solution & Example Answer:2.1.1 Explain why copper is suitable for the manufacturing of electrical cables - NSC Agricultural Technology - Question 2 - 2020 - Paper 1
Step 1
Explain why copper is suitable for the manufacturing of electrical cables.
Answer
Copper is an ideal material for electrical cables due to several key properties. Firstly, it is an excellent conductor of electricity, which allows for minimal energy loss during transmission. Additionally, copper is easily joined through soldering or crimping, which is crucial for creating reliable connections in electrical systems. Its lightweight nature facilitates easier handling and installation.
Copper also exhibits durability and resistance to corrosion, which extends the lifespan of electrical cables in various environments. Furthermore, its malleability allows it to be shaped into various forms without breaking, making it versatile for different applications. Overall, these properties make copper a preferred choice for manufacturing electrical cables.
Step 2
Discuss THREE safety requirements that must be considered when installing the electric cables and leads of electric fences.
Answer
When installing electric cables and leads for electric fences, several safety requirements must be considered to ensure both functionality and safety:
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Proper Insulation: All connecting leads run within buildings should be effectively insulated from the earth's structural parts to prevent accidental shocks or electrical faults.
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Underground Installation: Cables that are run underground must be well-insulated and protected to avoid damage from moisture or digging activities. This includes using appropriate conduit materials that are resistant to moisture penetration.
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Identification of Cables: It is vital to clearly mark and identify where cables are buried. This prevents accidental digging in the vicinity and helps maintenance personnel know where to work without risking cable damage.