Aluminium is suitable for electrical wiring due to its low density.

Explanation:
- Low density: Aluminium is a lightweight metal with a low density compared to other metals such as copper. This makes it easier to handle and install in electrical wiring systems.
- Conductivity: Although the question states that aluminium's high thermal conductivity property is not relevant to electrical wiring, it is worth mentioning that aluminium also has good electrical conductivity. It is not as conductive as copper, but its conductivity is still sufficient for use in electrical applications.
- Resistance: Aluminium has a lower electrical resistance compared to materials like rubber or plastics. This means that electrical current can flow more easily through aluminium wires, resulting in less energy loss and more efficient transmission of electricity.
- Melting point: While aluminium does have a relatively high melting point, this property is not directly relevant to its suitability for electrical wiring. The melting point mainly affects the manufacturing and processing of aluminium, rather than its performance as a conductor of electricity.
- Corrosion resistance: Another important property of aluminium is its resistance to corrosion. Aluminium forms a thin layer of oxide on its surface which protects it from further oxidation. This makes aluminium wiring more durable and long-lasting, especially in humid or corrosive environments.
- Cost: Aluminium is also more cost-effective compared to copper, which makes it a popular choice for electrical wiring in many applications. The lower cost of aluminium can significantly reduce the overall cost of electrical installations.
- Flexibility: Aluminium wire is more flexible than copper wire, which can be advantageous in certain situations where wiring needs to be bent or routed through tight spaces.
- Compatibility: Aluminium wire is compatible with various connectors and devices commonly used in electrical systems. This makes it easy to integrate aluminium wiring into existing infrastructure without the need for extensive modifications.
- Code regulations: Aluminium wiring meets the code requirements for electrical installations in many jurisdictions. It is important to follow specific guidelines for installing and maintaining aluminium wiring to ensure safety and prevent issues such as overheating or electrical faults.