Confined spaces look simple in structure, but they are very dangerous and deadly to any worker. These spaces are kept isolated and restricted to authorized workers only. Before entering and working in confined spaces, workers must understand potential hazards and carry essential equipment in case of any emergencies. Workers who want to work in confined spaces must be aware of the essential knowledge and be equipped with proper training to work safely and with no harm. In this blog, we will talk about the most common dangers in confined spaces and provide you with some tips on working safely in confined spaces.
What is Confined Space?
A confined space is any enclosed or partially enclosed space (vessel, pit, tank, chamber container) which pose to dangerous area due to its enclosed structure.
The space is large enough for a person to enter but it is not meant for people to stay in for a long time. Working in confined spaces can be dangerous because of problems like limited exits, poor air quality and other unsafe conditions. Special safety rules are needed to keep workers safe.
Due to factors such as restricted access, poor ventilation and the presence of hazardous conditions, working in confined spaces requires specialized safety protocols to protect workers.
What is Not a Confined Space?
A space is not considered a confined space if it doesn’t meet the criteria of a confined space. A non-confined space room has proper ventilation, regular access, no harmful atmospheres and does not contain hazards that could cause serious harm and even death
Seven Common Hazards in Confined Spaces
Working in confined spaces comes with many possible dangers. Here are seven common hazards a worker must be cautious about:
1. Lack of Oxygen
Due to poor ventilation and chemical reactions, the oxygen level goes below 21% (normal oxygen level in air). This makes breathing hard and leads to symptoms like dizziness, confusion, unconsciousness or even death.
2. Toxic Gases and Fumes
Due to chemical reactions, waste or sewage, gases such as carbon monoxide, hydrogen sulphide, methane and ammonia are produced which are seriously toxic. These fumes can lead to poisoning, burns and death.
3. Temperature Extremes
Confined spaces can experience extreme temperatures, which may lead to health issues like heat stroke, unconsciousness, nausea due to heat and hyperthermia or frostbite, numbness from cold.
4. Noise
Noise in confined spaces can be much louder because the area is small and there may be machines, tools, or ventilation systems that are producing sound. Long exposure to loud noise can damage hearing and make communication difficult.
5. Physical Hazard
Confined spaces contain various physical particles that may cause injury. The most common physical hazards while working in a confined space include:
- Sharp edges and exposed metals
- Moving machinery
- Low ceilings
6. Fire and Explosion
Confined spaces can be more dangerous for fires and explosions because of poor airflow, flammable materials and heat sources or sparks. Due to enclosed area, running machinery and gases, the place gets heated very fast. This increases the risk of fire and explosion inside the confined space.
7. Engulfment
Engulfment happens when a worker is suddenly trapped or buried by materials such as liquids, grain, sand, or other loose substances. This can occur without warning and is extremely dangerous, as it can lead to suffocation or drowning. The rapid collection of these materials can quickly bury a worker, making it a life-threatening hazard in confined spaces.
Tips to Minimise the Risks of Working in Confined Spaces
While confined spaces can be hazardous, following proper safety measures can significantly reduce the risks. Here are key safety tips to keep in mind:
Testing Air Before Entering
Always test the air for oxygen levels and the presence of harmful gases before entering a confined space. Never enter if the air quality is unsafe and wait until it is properly ventilated or treated.
Using the Right Safety Gear (PPE)
Wear the appropriate personal protective equipment (PPE), including helmets, gloves and harnesses, to protect yourself from injuries and exposure to hazardous substances.
Ensuring Proper Ventilation
Make sure the confined space is well-ventilated to maintain a safe airflow. Use fans or ventilation systems to help circulate air and prevent the buildup of dangerous gases.
Monitoring the Atmosphere Continuously
Use gas detectors and other monitoring tools to track air quality throughout the duration of your work inside the confined space. This helps you stay aware of any dangerous changes in the atmosphere.
Getting Proper Training
Ensure all workers are trained in confined space entry and working in accordance with issued permits, including recognizing potential hazards, following safe entry procedures and responding to emergencies.
Having an Emergency Plan
Always have a clear emergency plan. Be familiar with rescue procedures and ensure that everyone knows how to quickly access help if an incident occurs.
Conclusion
Confined spaces can be hazardous but with the right knowledge and safety precautions, you can minimize the risks. Always ensure you fully understand the potential hazards before entering and take the necessary steps to protect yourself. If you’re ever unsure, seek guidance or proper training. Your safety should always be the top priority.
We provide accredited confined space training to help you understand the risks, aware about safety protocols and ensure you’re ready for any situation. Don’t wait for an emergency! Act now to protect yourself and your team. Contact us today to get the training you need and stay safe on the job.
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Ready to Work Safely and Confidently in Confined Spaces?
FAQs on Confined Space and its Hazards
What should not be used in confined spaces?
Avoid using equipment that could produce hazardous fumes or gases, such as gas-powered tools. Electrical equipment should be inspected to ensure it’s safe to use in a confined environment.
What makes a confined space high risk?
A confined space becomes high risk when the entrance and/or exit is hard to get in and out of, the oxygen level is below normal, contains harmful fumes and presence of physical hazards.
What is the biggest cause of confined space fatalities?
The most common cause of fatalities in confined spaces is asphyxiation, which happens when there isn’t enough oxygen or when toxic gases are present.
What are the 7 key hazards when entering an enclosed space?
7 key hazards when entering an enclosed space are:
- Lack of Oxygen
- Toxic Gases and Fumes
- Temperature Extremes
- Noise
- Physical Hazard
- Fire and Explosion
- Engulfment
How are hazards controlled in confined spaces?
Hazards can be controlled by testing the air before entering, using the right equipment (PPE), ensuring proper ventilation and monitoring the atmosphere while inside. Always have a rescue plan.
Do we need to be confined space trained?
Yes, anyone who enters a confined space should be properly trained. Confined space training ensures workers know how to identify hazards and follow safety procedures.
What is confined space training?
Confined space training teaches workers how to safely enter, work in and exit confined spaces. It includes hazard recognition, emergency procedures and proper use of PPE and equipment.
How do I take confined space training?
You can take the following accredited confined space courses at DLI Training via face to face classroom or workplace training available on request:
- Enter and work in confined spaces
- Work in accordance with an issued permit
- Gas test atmospheres Training
