Polymer used for the insulation of electrical cables is:

Options

A. PVC
B. Glyptal
C. Neoprene
D. All of these

Answer

To determine the polymer used for the insulation of electrical cables, we will analyze the options provided:

1. **Understanding the Options**:
- **Option A: PVC (Polyvinyl Chloride)**: This is a widely used plastic known for its durability and electrical insulation properties. It is commonly used in electrical wiring and cable insulation.
- **Option B: Glyptal**: This is a type of polyester resin that is primarily used in paints and coatings, particularly for metal surfaces. It is not typically used for electrical insulation.
- **Option C: Neoprene**: This is a synthetic rubber used in various applications, including wetsuits and other waterproof products. It is not primarily used for electrical insulation.
- **Option D: All of these**: This option suggests that all the above polymers are used for electrical insulation, which is incorrect based on the analysis.

2. **Conclusion**:
Based on the analysis, the polymer that is specifically used for the insulation of electrical cables is **PVC (Polyvinyl Chloride)**.

Thus, the correct answer is **Option A: PVC**.