What Is Hot Work? Definition, Risk and How to Control It

• Hot work refers to temporary operations involving open flames, heat-producing equipment, or spark-generating tools that can ignite combustible materials.

• Common types of hot work include welding, cutting, soldering, grinding, and other spark-producing operations such as drilling, riveting, and chipping.

• A hot work permit system is an authorisation process that specifies the work details, location, duration, hazards, safety measures, emergency procedures, and approval by authorised personnel.

• Hot work incidents can result in significant financial losses; businesses can strengthen their risk management strategy by combining safety measures with appropriate fire insurance coverage.

Hot work is any temporary operation that involves open flames, heat-producing equipment, or spark-generating tools capable of igniting combustible materials.

These activities are commonly performed during construction, manufacturing and similar processes to join or shape metal and other materials. Facilities that perform hot work need to obtain a permit and follow proper safety measures.

Hot work encompasses various activities that have been used across various industries, such as:

• Welding: The process of joining thermoplastics or metals by melting them together. Some of the popular methods used in welding are: Gas Metal Arc Welding (GMAW), Shielded Metal Arc Welding (SMAW), and Gas Tungsten Arc Welding (GTAW).

• Cutting: This is the process of cutting metals by using the plasma cutters, torches and abrasive saws. These cutting operations in hot work generate large amounts of molten metal and sparks.

• Soldering: Soldering is the process of joining two metals together using a third filler metal. The process generally takes place at a temperature below 450°C.

• Grinding: It is a hot work activity that uses an abrasive wheel or disc to cut, smooth, shape, or finish metal surfaces. During the process, friction between the grinding tool and the material generates heat and sparks.

Other Spark-Producing Operations: There are various other hot work processes, such as chipping, riveting and drilling, that generate sparks and heat.

A hot work permit system is an authorisation document that allows specific individuals to perform hot work. Individuals can perform the hot work process in a specified area and within a specified time frame. Along with this, it is an individual duty to manage the risk associated with the hot work. Here are the following details included in the hot work permit system:

• Details of the hot work carried out by the professional

• Duration and location of the hot work

• Specific potential hazard associated with the hot work

• Precautions taken by the professional to carry out the hot work

• Emergency procedure to be followed in the event of a hot work safety hazard

• Signatures of the authorised personnel

There are various types of risk associated with hot work because of its open flames, sparks and heat. Some of the common hot work hazards are:

• Fire Hazard: One of the major risks associated with hot work is the risk of fire caused by sparks, molten metal, etc. When it comes into contact with flammable material, it can lead to fire.

• Explosion Risk: If the hot work material comes into contact with flammable gas or vapour, it can lead to an explosion.

• Burns and Injuries: Hot work can also cause burns and injuries if the individual comes into direct contact with molten metal, hot work equipment and more. It can also lead to serious eye injury due to intense light or flying particles.

• Toxic Fumes and Gases: Hot work also releases hazardous or toxic gases or fumes from coatings, metals, etc. If inhaled, they can lead to respiratory disease.

• Structural Damage: Another hot work hazard is the risk of structural damage. The intense heat can weaken structural components, leading to collapse and failure.

• Oxygen Depletion: Some of the hot work activities can consume oxygen in confined or poorly ventilated spaces. This can create an oxygen-deficient environment that may lead to dizziness, unconsciousness, or suffocation.

• Electric Shock: Operations involving electrically powered equipment, such as arc welding, can expose workers to electric shock. It generally occurs when the equipment is faulty or when it is used in wet conditions.

• Secondary Accidents: Sparks, heat, or reduced visibility caused by hot work can trigger additional incidents, such as slips, trips, falls, equipment malfunctions, or accidental contact with hot surfaces.

When performing hot work, proper safety measures must be taken. These safety measures are divided into categories: before hot work, during hot work and after hot work completion.

Before Hot Work

• Before beginning the hot work, conduct a thorough risk assessment to identify all the potential hot work hazards.

• Another hot work safety measure is to secure and clear the hot work area by removing flammable materials before work begins.

• After securing the hot work site, ensure it has all the safety equipment needed to address the hazard, such as a fire extinguisher.

• Lastly, check that all hot work equipment is functioning properly before beginning the hot work process.

During Hot Work

• While performing hot work, wear proper fire protection equipment, such as eye protection, flame-resistant gloves, and respiratory equipment.

• Another crucial hot work safety precaution is to implement a fire watch, assigning it to an authorised person who will raise an alarm if a fire occurs on the premises.

• Another safety measure is to have a proper ventilation system to release fumes and gases.

• Regular monitoring of the hot workspace is also necessary to check signs of fire and other hazards.

After Hot Work

• Once the hot work is completed, continue the fire watch for at least 60 minutes.

• Ensure that all the equipment is in a safe space once the work is completed.

• Carry out a thorough inspection of the hot work site to assess any fire risk once the work is finished.

• Inform the relevant parties and authorities about the completion of hot work.

Hot work is an essential industrial operation that trained professionals must carry out. Any mishaps or negligence during hot work can lead to fires and explosions. These accidents can cause financial losses and serious health hazards.

This is why many hot work site owners need to invest in fire policy. Fire insurance online can provide financial protection against losses arising from fire-related incidents. This helps businesses recover from property damage, repair costs, and operational disruptions.

TATA AIG offers various business insurance plans that are customised based on your business needs. We offer bundled fire and burglary insurance that provides coverage for stock, property and expensive equipment against fire, burglary and related damages.

Along with this, we also offer shop insurance that protects your shop against fire, theft and burglary. With our insurance, you will get various add-ons, a dedicated service helpdesk, affordable premiums and more.