In summer weather, uotside temperature is extremely high. And you can see July 10, 1913, California is 134 °F (57 °C), the wires and cables are under such high temperature outside, they are dangerous. Suggest use the fire protective sleeve to protect them.

You can also see other ultra high temperature weather here,
https://en.wikipedia.org/wiki/U.S._state_and_territory_temperature_extremes

Firesleeve is first choice, becuase hook and loop have a gap between the hook and loop.

This fire sleeve heat guard is made by special treated fiberglass braided sleeve coated with heavy silicone rubber.

Fire protective Sleeve will withstand continuous exposure to 500° F (260°C); up to 2000°F (1090°C) for 15-20 minutes; and up to 3000°F (1650°C) for 15-30 seconds. When exposed to flame, the silicone rubber transforms into a crust, creating a protective SiO2 refractory layer. So the fire resistant sleeve is best way to protect the wires and cables.

There is different size for your choice, inside diameter from 4mm to 150 mm. Our fire resistant sleeve have DN5510-2 flame resistant certificates. So it is safe to use fire protective sleeve to protect the wires and cables.