Won't you be right back into permit issues doing that?
A building permit may be required but we could always use the "had to do this as the roof was unrepairable" reason which would negate the permit requirement here.
The only clearance height reference I can find from BC Hydro is this:
BC Hydro clearance requirements are generally greater than Code requirements.
1. Across highways, freeways, and expressways: 7.1 m (written permission required)
2. Across streets, lanes, alleys and pipeline ROW: 5.5 m (18 ft)
3. Across driveways to commercial and industrial premises: 5.5 m (18 ft)
4. Across driveways to residential garages: 4.5 m (15 ft)
5. Across ground normally accessible to pedestrians only: 3.5 m (12 ft)
Now what's confusing is that on pg. 4 of the attached pdf they note that the clearance over the garage roof is too low. Except the #5 clearance requirement says "Across
ground normally accessible to pedestrians only". I would argue that a roof is neither ground nor normally accessible to pedestrians.
Fact of the matter is, the house was completely re-wired and upgraded to 200A service which necessitated a new aerial drop over the garage. And there's no way there's 12 ft of clearance above the garage roof now.
If push comes to shove I may investigate running the service to the garage first. But that's a heck of a lot of expense.