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Safety Rule # 1: Look up when playing, working or enjoying the outdoors. Locate overhead powerlines and electrical equipment – and stay clear. Contact with live wires can be fatal.


Trimming vines, cleaning eavestroughs or inspecting the roof increases the risk of contact with powerlines. As a rule of thumb, keep ladders and shears at least three metres away from all electrical equipment.*

  *Electrical Safety Authority


Doing yard work?

Call before you dig - it's the law

 Who’s responsible for tree trimming?


Before starting any work in the yard or around your house, call 1.800.400.2255  for the location of underground power lines, especially if you're planning  to use auguring or trenching equipment. Our service locators will confirm and mark Toronto Hydro owned underground electrical cables. For more information visit on1call.com


 If you require maintenance on trees that reside on city-owned property, call 311. Tree pruning, removal and planting requests can
also be submitted online at

If the tree resides on your property and is near a powerline, you
should hire a qualified arborist who is licensed to work on trees around powerlines.

Did you know?

Under the Occupational Health and Safety Act (section 228), it is the owner's responsibility to have all underground services marked for the safety of contracted service workers prior to having any excavation work done on private property.



  Concerned about Electric and Magnetic Fields (EMFs)?





Electric and magnetic fields (EMFs) are invisible lines of force that
surround any electrical device, such as powerlines or the electrical
cables in your home. They are created whenever electricity flows
through a wire.

EMFs are present everywhere electricity is used — around
appliances, televisions and power distribution facilities. These fields
are a normal part of both the delivery of electricity across a power
system, and the use of electricity in our homes.

At this time, research results from reputable organizations such as
the International Commission on Non-Ionizing Radiation Protection
(ICNIRP) and the World Health Organization (WHO) conclude
"current evidence does not confirm the existence of any health
consequences from exposure to EMFs. You do not need to take
action regarding typical daily exposures to electric and magnetic
fields at extremely low frequencies."

Toronto Hydro is committed to providing safe, reliable and
environmentally-sound electric service to our customers, and a
safe working environment for our employees. For this reason,
Toronto Hydro complies with the guidelines set by the ICNIRP.

Because electricity has become a virtual necessity in our lives,
Toronto Hydro will continue to act responsibly by committing to:

  • Provide EMF safe guidelines and EMF literature to employees
    and customers
  • Continue to support the need for additional research through our
    membership in the Electricity Distributors Association and the
    Canadian Electrical Association.


 Safety around construction sites


Toronto Hydro is investing in your community to help ensure reliable power to your home. Your family's safety is a priority for us when we’re working in your neighbourhood. Here are some tips to keep in mind.


  1. Be visible at all times and make eye contact with people operating equipment.
  2. Be aware of your surroundings and avoid distractions like cell phone use around construction areas.
  3. Follow all safety signage even if there are no construction workers around.
  4. Walk on the sidewalk or designated walkway.
  5. Ask for assistance to walk around the construction area if you feel you are unable or uncomfortable.
  6. Watch your step — Always be prepared for unexpected hazards.
  7. Report anything that looks dangerous to a construction site worker or call 416.542.3366


  1. Enter a construction site.

  2. Run or play in construction areas.

  3. Lean, stand, or climb on equipment, fences, mounds of dirt or any other construction materials.

  4. Approach hazardous areas marked by fences or safety cones.

  5. Distract construction workers who are operating construction equipment or vehicles.

  6. Approach a construction zone - take alternative routes to your destination if you know the whereabouts of a construction zone.

 Working near powerlines?


 Learn more about safe work sites.