What is Hot Work?
Hot work refers to any activity or process that generates a source of ignition, whether through a flame, heat or a spark. This can be:
- Direct hot work – where equipment or tool creates a flame (e.g. oxy-fuel gas cutting, gouging, brazing or oxy-acetylene welding).
- Indirect hot work – where friction or impact generates heat or sparks (e.g. using an abrasive wheel to cut metal).
Due to the inherent risks involved, hot work must always be authorised, monitored, and documented to ensure safety.
Why Hot Work Requires Strict Controls
Hot work introduces potential hazards that must be carefully managed. Such hazards include; fire and explosion risks, exposure to toxic fumes and damage to property and equipment.
Whether carried out by employees or external contractors, all hot work should be controlled and conducted by trained personnel. A thorough risk assessment must be completed before starting any hot work activity.
Conducting a Risk Assessment for Hot Work
Every workplace is different, requiring a tailored risk assessment to identify hazards and implement control measures. Key considerations include:
- The presence of flammable substances in the work area.
- Ensuring all equipment is in good working order and suitable for the task.
- Verifying that oxy-fuel gas equipment is in-date and inspected in accordance with the British Compressed Gases Association Code of Practice 7.
The Importance of a Permit-to-Work System
A permit-to-work system is an integral part of a safe system of work and can help to properly manage hazards within the workplace. This is especially the case in workplaces that are not designed for hot works.
The Health and Safety Executive (HSE) states that when incidents do occur, human factors (such as a failure to implement procedures properly) are often a cause. These failures may in turn be attributable to root causes, such as a lack of training and instruction, poor communication, failure to follow procedures, or simply not understanding the purpose or practical application of permit-to-work systems.
A hot work permit, also known as a permit-to-work system, is a formal document that controls the risks associated with hot work activities. Hot work permits are required for a number of reasons, including:
- Identify and manage risks.
- Ensure compliance with safety regulations.
- Reduce human error through proper oversight.
Who Issues a Hot Work Permit?
The Hot Work Assessor, a qualified individual with the necessary knowledge and training, is responsible for issuing permits. The assessor must ensure that workers acknowledge and understand the required safety controls and that operators are aware of firefighting equipment and fire safety protocols. The assessor must also make sure the designated fire watchers are in place for monitoring the work area.
Fire Watch and Post-Work Inspections
Once hot work is completed, the work area must be monitored for at least 60 minutes to ensure no fires ignite. Only after a thorough inspection can the permit be officially closed by an authorised individual.
Ensuring Safe Hot Work Practices
A hot work permit is an essential part of a management system which determines how a job can be carried out safely and helps communicate this to those doing the job. The issue of a hot work permit does not, by itself, make a job safe – that can only be achieved by those preparing for the work, those supervising the work and those carrying it out.
Additional Safety Measures
It is essential that hot work assessors are correctly trained to identify hazards and to implement the necessary control measures before they issue the hot work permit. In addition to the permit-to-work system, other precautions may need to be taken – such as process or electrical isolation, or access barriers.
It should be stressed that hot work must only be undertaken by trained operators who understand how to correctly set-up and operate oxy-fuel gas systems and who are aware of what they are doing to carry out their work safely and take the necessary precautions.
Hot Work Training and Certification
We offer specialised hot work training workshops for both assessors and operators:
- Our hot work assessors workshop enables staff to undertake hot work risk assessments and to produce hot work permits.
- Our hot work workshop for operators details how to use oxy-fuel gas equipment safely to ensure that hazards and risks are minimised.
By ensuring that all personnel are properly trained, workplaces can significantly reduce the risks associated with hot work and maintain compliance with safety regulations.
Conclusion
Hot work is inherently hazardous, but with the right training, risk assessments, and permit-to-work systems in place, these dangers can be effectively managed. Investing in proper training and compliance measures ensures workplace safety and minimises potential incidents. If you would like to discuss hot work training or any of our other industrial gas safety workshops, please contact us on 01270 758890 or email us at admin@gassafeconsultants.co.uk.
