Under the Repay WA scheme, supervised community-based offenders will coat fire retardant paint onto power poles in high fire risk areas.
Fire retardant paint protects poles against low intensity fires and prevents a wood pole from smouldering for hours.
The three week trial was designed to test whether hand painting poles could become a viable long-term option.
Western Power already machine coats new poles with fire retardant paint before they are placed in the field, but it plans to explore the option of retrospectively painting poles already in the field and in high fire risk areas.