How is heat trace cable positioned when installed for anti-freeze protection?

The correct positioning of heat trace cable for anti-freeze protection is circular. This configuration is crucial because it allows for uniform heat distribution around pipes or other surfaces that need to be protected from freezing.

When the cable is installed in a circular pattern, it effectively wraps around the critical areas, ensuring that heat is applied evenly. This helps to maintain a consistent temperature along the entire length of the pipe or surface, effectively preventing the formation of ice.

In contrast, a straight or random configuration may lead to uneven heating, which can create cold spots and increase the risk of freezing. A spiral arrangement can also be used, but it generally does not provide as consistent coverage as a circular arrangement, which is why circular is often the preferred technique for this specific application.