National Grid
Electric Safety Be Safe Around Overhead Lines
When working outdoors, please be aware of the dangers of working near overhead power lines. These power lines are not insulated, and they carry enough energy to cause serious injury or even death. Keep ladders and other equipment at least 10 feet away at all times. If you see a downed line, keep everyone away and call us immediately at 1-800-465-1212.

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Trees & Your Electric Service
Trees enhance the quality of life in every community by converting carbon dioxide to oxygen and keeping the air clean. However, diseased and/or weakened trees, along with trees planted and growing near power lines, can contribute to power outages when they come in contact with overhead electric lines. National Grid's goal is to ensure everyone's safety and deliver reliable energy. Electric Utilities transfer energy locally and along rights-of-way.

Distribution lines are generally wood poles running along roads and connecting to homes and businesses.

Transmission lines are larger wood or steel poles and transfer high voltage power along cleared rights-of-way across the landscape or behind homes.

Distribution Vegetation Management Transmission Vegetation Management
Electric Safety
  • Overhead power lines are not insulated, and carry enough energy to cause serious injury or even death. Regard all wires as live.
  • Keep yourself, your co-workers, friends, family and vehicles at least 10 feet away from residential electric lines and equipment.
  • Stay alert. Keep ladders at least 10 feet away from power lines when carrying, moving, and raising them.
  • Keep away from wires when working with tools, pipe, lumber or siding—all of which can conduct electricity.
  • Make sure the area is clear of wires before working near trees or shrubs.
  • Never attach or tie anything off to power lines or electrical equipment.
To further ensure your safety, consider all lines "energized" and put an effective ground on all equipment working near overhead electric lines.

First Responder Training Staying safe while saving others: electrical and natural gas safety for first responders -- visit our First Responder Safety site for interactive training tools and videos, and to order FREE safety material