Working Safely in Wet Environments with Electricity
The Problem
Electricity and water are a dangerous combination. But by following safe work practices, staying alert, and using the right equipment, we can prevent injuries and save lives. Thank you for making safety your priority—remember, it only takes a small mistake to cause a serious accident.
Identify the Hazards
- Electric Shock: Water reduces electrical resistance, increasing the likelihood of shock when equipment or cables are exposed to moisture.
- Damaged Equipment: Wet conditions can cause corrosion or compromise insulation, exposing live components.
- Slips and Falls: Wet surfaces increase the risk of falls, which can further complicate electrical hazards.
- Unintentional Contact: Wet gloves or boots can become conductive, putting workers at even greater risk.
Safety Practices and Preventative Measures
Inspect Equipment Before Use:
- Check leads, plugs, and tools for damage—especially signs of moisture or water ingress.
- Do not use any electrical equipment that is wet unless it is specifically designed and rated for wet conditions.
Use Residual Current Devices (RCDs):
- Always plug tools and portable equipment into RCD-protected outlets to reduce the risk of electric shock.
- Test the RCD before use using the built-in test button to ensure it’s functioning properly.
Wear Proper Personal Protective Equipment (PPE):
- Use rubber-insulated gloves and electrical-rated boots where necessary.
- Wear slip-resistant footwear to reduce the risk of falling on wet surfaces.
Use Insulating Mats and Barriers:
- Stand on dry, insulated mats or platforms when working near electrical sources in wet areas.
- Use barriers or covers to keep water away from electrical components.
Dry Equipment Thoroughly:
- If tools or cords get wet, dry them completely and have them inspected by a competent person before use.
- Do not resume use until the item has been verified as safe.
Limit Exposure to Wet Conditions:
- Avoid working with electricity in the rain, standing water, or other high-risk conditions unless absolutely necessary.
- Use portable shelters, tarpaulins, or protective covers to shield electrical gear from moisture.
Report Hazards Immediately:
- If you see water near electrical panels, leads, or equipment, stop work immediately and notify your supervisor.
Real-Life Case or Scenario
E.g. In a recent incident, a worker using an electric drill outdoors during light rain suffered a severe shock. The drill wasn’t rated for wet conditions, and the outlet lacked GFCI protection. The worker was hospitalized but survived. This accident could have been avoided with proper precautions, like using GFCI protection and rated tools.
Employee Responsibilities
- Inspect all tools and equipment before use, especially in wet conditions.
- Use GFCIs and test them regularly.
- Wear appropriate PPE for wet environments.
- Avoid using damaged or wet tools, and report hazards immediately.
Employer Responsibilities
- Provide GFCI protection for all outlets.
- Supply appropriate PPE and tools rated for wet conditions.
- Ensure employees are trained on the hazards of working with electricity in wet environments.
- Maintain and inspect electrical equipment regularly.
Discussion & Questions
- "What types of electrical hazards have you encountered while working in wet conditions?"
- "Does anyone know how to test a GFCI? Let’s review that together."
- Encourage employees to share their concerns or experiences with similar situations.
Commitment/Action Plan
Let’s commit to inspecting all tools and using GFCI protection every time we work in wet environments. Starting today, take a few extra moments to ensure all electrical equipment is safe and dry before starting work.
Wrap-Up
Electricity and water are a dangerous combination, but by following these safety practices, we can prevent accidents and injuries. Thank you for prioritizing safety on the job site. Remember, it only takes a small mistake for a big accident to happen—stay alert and stay safe.
Standards Overview
Under the Health and Safety at Work Act 2015 (HSWA), PCBUs (Persons Conducting a Business or Undertaking) must eliminate or minimise risks to workers’ health and safety—this includes electrical hazards in wet environments. WorkSafe New Zealand requires:
- Use of Residual Current Devices (RCDs) for all portable and hand-held equipment
- Inspection and maintenance of electrical gear exposed to wet or damp conditions
- Worker training in hazard identification and safe work practices
- Provision of weather-rated tools and controls to reduce electrical risk in wet environments
Disclaimer
These toolbox talks are provided for informational and educational purposes only and are not a substitute for professional legal, health and safety, or regulatory advice.
The content reflects recognised best practices and general industry standards as at the date of publication. However, it may not be applicable to all workplace environments or specific operational contexts.
It is the responsibility of the Person Conducting a Business or Undertaking (PCBU), as well as officers, workers, and other duty holders under the Health and Safety at Work Act 2015 (HSWA), to ensure compliance with all relevant laws, regulations, and WorkSafe New Zealand guidance.
The authors, presenters, and distributors of this toolbox talk disclaim all liability for any loss, damage, or injury arising from the use or reliance on the information provided. Users should seek advice from a suitably qualified health and safety professional or legal advisor for guidance tailored to their specific circumstances.
Always follow your organisation’s policies, procedures, and safe work practices to manage risks and maintain a safe and healthy workplace.
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