Explanation:

In the summer season, electric wires between electric poles can become loose. This can happen due to a few reasons:

1. Expansion and contraction of materials:
- In the summer season, temperatures can rise significantly, causing materials, including metal wires, to expand.
- When the wires expand, they may become longer and may not fit as tightly between the electric poles as they did during cooler seasons.
- This expansion can create slack in the wires, making them loose.

2. Thermal expansion of the poles:
- Electric poles are often made of materials such as wood or metal.
- These materials also expand when exposed to high temperatures.
- As the poles expand, they may move slightly, causing the wires connected to them to become loose.

3. Natural factors:
- Wind and storms are common during the summer season.
- Strong winds can cause the wires to sway and move, leading to them becoming loose.
- Additionally, lightning strikes during storms can cause damage to the wires, resulting in them becoming loose or even breaking.

Consequences of loose electric wires:

1. Safety hazards:
- Loose electric wires pose a significant safety risk.
- They can sag and come into contact with trees, buildings, or the ground, increasing the chances of electrical accidents.
- People or animals may accidentally touch the live wires, leading to electric shocks or even electrocution.

2. Disruption of electricity supply:
- Loose wires can cause disruptions in the electricity supply.
- If the wires become too loose, they may detach from the electric poles, leading to power outages in the affected area.

Preventive measures:

To prevent electric wires from becoming loose during the summer season, regular maintenance and inspections are necessary. This includes:

- Tightening the wires and ensuring they are securely fastened to the electric poles.
- Checking for any signs of wear or damage and repairing or replacing the wires as needed.
- Trimming tree branches near the wires to prevent them from coming into contact during windy conditions.
- Regularly inspecting the poles for any signs of damage or instability.

By taking these preventive measures and addressing any issues promptly, the risks associated with loose electric wires can be minimized, ensuring a safe and reliable supply of electricity.