Electricity is an enigmatic hazard on any construction site. It can cause huge amounts of damage, and yet is invisible. Electrical power is essential to many of the tasks that go into construction, so it’s an omnipresent danger, and one that can rear its head in many different forms. It’s recognized as one of OSHA’s “Big Four” hazards in construction.
Training workers in how to recognize, mitigate and avoid electrical hazards is important, and toolbox talks can serve as refreshers to keep safe practices top of mind. Here are a few of the things you should be thinking about when scheduling electrical safety toolbox talks.
Make it personal
One of the vital components of an effective toolbox talk is to talk about what can result from carelessness. And with electricity, the consequences of a mistake can be dire. Electrocution, of course, is the big one—and this can kill.
Begin the toolbox talk with an anecdote about an electrical incident on-site, whether it be real or theoretical—make sure it is realistic. There are plenty of possibilities in the news, so you could use a recent event that could easily have happened on your site, such as this one in Arizona. Go over the details of what happened, the full consequences for any injured parties (death, injury, burns, loss of income, permanent disability), and what could have been done to avoid the incident from eventuating.
Using a story like this, particularly one that’s demonstrably true, grounds the following information and advice in reality and drives home the gravity of electrical dangers. Time permitting, it’s good to encourage workers to share any of their close calls or accidents involving electricity.
Consider the consequences
There are four main types of electrical injury: burns, falls, electric shock, and electrocution. One way to structure your toolbox talk is to look at each type of injury, how it can occur, and how each worker can take responsibility for preventing it.
These happen when skin comes into direct contact with an electrical source. They can also come about as thermal burns from the heat generated by arcing electricity and be caused indirectly by fires started by electrical sparks.
Thermal and fire burns can be treated as you would a “normal” burn, a topic for another discussion. When it comes to true electrical burns, the afflicted person and anyone providing help should keep these things in mind:
- No-one should touch someone who is still in contact with an electrical current.
- An electrical injury can be more extensive than it appears—so treat even a slight burn seriously, as it may belie internal damage.
Avoiding electrical burns means avoiding any contact with live electricity. All extension and power cords should be in good repair, and only licensed electricians should work with exposed wires. High-voltage areas and machinery should be clearly marked, and workers should be very careful when water is present around electricity.
Working at height can take an electrical incident—like a small shock—from minor to deadly. A zap from a live wire that had gone unnoticed can cause someone to fall from a ladder and scaffolding. This danger requires both electrical safety awareness and also fall prevention strategies to minimize as much as possible.
Avoiding falls caused by electricity boils down to being extra careful around any electrical tools or wires when in a precarious position. Those taking tools with them on ladders or scaffolding should first inspect them for signs of wear and tear, and anyone climbing near exposed wires must take full precautions against both electric shocks and falls.
An electric shock occurs when someone comes into contact with an electrical energy source. It can burn both internal and external tissue, and range in severity widely from a small jolt to a life-threatening shock.
Workers can receive electrical shocks from a range of things: Not only the obvious “live wire” situations, but from unsafe or damaged extension cords and power strips, faulty tools, and anything that uses electrical power if it’s used incorrectly. Safety Culture has a list of seven common electrical hazards of which workers should be mindful.
A major aspect of avoiding electric shocks is to ensure that all electrical appliances and tools are in good working order—not broken, no insulation cracked to expose wires. Additionally, it’s important to emphasize during your toolbox talk that workers should never operate anything electrical near water.
An electric shock becomes electrocution when the electrical current that enters the body is powerful enough to stop the heart and cause death or severe injury. It’s the “big” electrical injury, and the risk of electrocution should be managed at all costs.
One of the big causes of electrocution is overhead power lines—these carry more than enough power to electrocute and can get in the way of lifts, ladders and the like. The number one thing to convey to workers is that they must slow down and think carefully before carrying out any work that brings the slightest risk of coming into contact with power lines, or anything that’s touching power lines.
Ensuring that all wiring done on-site is safe, with correctly-sized fuses and circuit breakers used, goes a long way to keeping everyone safe. The toolbox talk might include a look at how the company is working to make sure that all circuitry is done properly. All wiring should be avoided by workers who are not qualified electricians, so reiterate that no-one should cut corners for the sake of convenience.
Basic electrical safety tips
A good toolbox talk should include some practical takeaways or action points that workers can incorporate into their daily routines. The following are a few basic electrical safety tips that you may want to leave with them:
- Avoid working with or around electricity whenever possible. If you think it will be necessary, get an electrician in.
- Always wear the appropriate PPE when working with electricity. This may include specialized electrical gloves and footwear.
- Ensure all extension cords and power strips are in good condition, and use cord protectors. Tape extension cords up high or cover them with cable covers on the floor to ensure no-one trips on them or damages them.
- Don’t take shortcuts when using power tools. Be mindful of following the correct process for safe use, handling, and storage every time.
- Always use the correct size fuse.
- Keep a lookout for any warm or hot power outlets or cords, as these may indicate poor wiring.
- Do not touch someone involved in an electrical incident until the power source has been disabled.
This CCOHS fact sheet has some more handy basic electrical safety information.
Don’t be shocked by safety paperwork
Perhaps the biggest part of being safe around electricity on a construction site boils down to avoidance. Don’t attempt any wiring work—leave it to the professionals! When workers do have to interact with electricity in the form of power tools, power cords, and other equipment, they should always take proper precautions, stay away from water, and ensure everything is in good condition.
When it comes to the big guns like working around power lines, each site should have procedures and safety equipment in place—so it’s a matter of making sure that your people understand the importance of following those to the letter. For this to happen, policies should be clear and easily accessible.
Safety Evolution can help companies keep all of their safety-related paperwork in order, collect incident reports efficiently, and manage training requirements to ensure all workers are up-to-date where they need to be.
Watch our Demo on Demand video series to learn more!