Read product markings
Ratings, indoor/outdoor suitability and intended use come from the manufacturer.
Avoid damaged products
Cracked housings, loose connections or damaged cords are not maintenance projects for casual repair.
Do not hide overload problems
Needing many temporary connections may indicate that the space needs professional electrical review.
Check current product warnings
Recall databases can identify models with known safety problems.
General prevention information only. In an active emergency, follow local emergency services and official instructions. Do not attempt electrical, structural, fire-suppression, hazardous-chemical or other safety-critical work without appropriate professional competence.