How do you involve a safety officer in lighting choices in hot zones?

A safety officer should be involved in lighting choices in hot zones by bringing them on board at the design stage, not just upon completion. Lighting in environments with extreme heat directly impacts safety, operational reliability, and compliance with legal regulations. This article answers the most frequently asked questions about lighting requirements, risks, and involving the right people at the right time.

What lighting requirements apply in hot industrial zones?

In hot industrial zones, strict requirements apply to the thermal loadability, protection rating, and construction of lighting fixtures. Standard LED lighting is unsuitable in such environments because the components deteriorate rapidly or fail completely at high ambient temperatures. The fixtures must withstand ambient temperatures that can reach well above 60°C, and in extreme cases such as steel mills even up to +120°C.

In addition to temperature resistance, the degree of protection against dust and moisture (IP rating) and the mechanical impact resistance (IK rating) also play a major role. In environments where infrared radiation is also emitted, such as in blast furnaces or smelters, additional requirements apply to the housing and the cooling of the light source. High-temperature lighting requires a fundamentally different design than standard industrial fixtures.

In zones where there is also the risk of explosions or aggressive chemical fumes, there is also the ATEX directive. This requires that electrical equipment, including lighting, be certified for use in explosive atmospheres. This is not a choice but a legal requirement.

What safety risks arise from improper lighting in hot zones?

Incorrect lighting in hot industrial zones leads to a combination of direct safety risks and operational problems that reinforce each other. The most immediate risks are fire hazards due to overheating of fixtures, sudden power outages during critical processes, and reduced visibility due to glare or poor light color.

When a fixture that is not designed for high temperatures is nevertheless placed in such an environment, the degradation of the LED chip, driver, and housing accelerates dramatically. This leads to unexpected failures, which is dangerous in an active production environment. Operators who suddenly work in the dark when moving machinery, at high temperatures, or in hazardous environments face a significantly higher risk of accidents.

In addition, glare plays an underestimated role. Misplaced or incorrectly chosen lighting can blind operators and machine operators, which is especially dangerous in hot zones because concentration is already more difficult due to environmental conditions.

What are the responsibilities of a safety officer in lighting projects?

In lighting projects, the safety manager assesses whether the chosen solutions meet applicable standards, limit operational risks, and ensure the safety of employees. This goes beyond signing a contract.

In practice, the role of a safety officer in this type of project includes the following:

Assessing the zoning classification, especially in ATEX applications
Testing lighting fixture choices against the specific risk profiles of the environment
Monitoring the lighting levels in workplaces from an ergonomic and safety perspective
Assessing the accessibility of fixtures for maintenance in hazardous zones
Identifying conflicts between lighting design and other safety installations
Preparing or reviewing the risk assessment for the lighting installation

A safety officer therefore thinks not only in terms of “does it work”, but in terms of “what if it doesn’t work” and “how do we keep it safe during installation, use and maintenance”.

How do you involve a safety officer early in the lighting process?

The most effective way is to involve the safety officer at the very beginning of the problem-solving process, before there is even a concrete choice of luminaires. Those who only join the final phase can only respond to choices that have already been made. Those who contribute at the initial stage help to ask the right questions.

Specifically, this works as follows:

Start with a joint risk analysis of the zone: what temperatures, substances, activities and risks are present?
Involve the safety officer in the briefing with the lighting specialist, so that his or her prerequisites are directly included in the design.
Schedule a review moment after the lighting design, But for the final specification, so there is still room for adjustments.
Set common criteria which the final choice must meet, including ease of maintenance and accessibility in the area.
Document the choices made and the reasoning behind them so that the safety officer can include this in the safety file of the installation.

This process not only prevents discussions later on, but also provides stronger evidence for regulators or in incident investigations.

Which technical documentation convinces a safety officer?

Technical documentation convinces a safety officer when it concretely demonstrates that the selected luminaires have been tested and certified for the specific conditions in the area. General product brochures are not sufficient for this purpose.

What a safety officer typically needs to be able to assess and approve a lighting choice:

Technical datasheets with the maximum ambient temperature (Ta) and the thermal class of the luminaire
IP and IK certificates that comply with the environmental requirements of the specific zone
ATEX certification with zone classification, if applicable
Test reports for vibration and shock resistance in applications on machines or cranes
Maintenance documentation: how is the luminaire cleaned, replaced, or inspected in a hazardous area?
An illumination calculation or simulation that shows that the illumination levels at the workplace comply with the safety requirements

The more specific the documentation is in relation to the situation on the ground, the faster a safety officer can give his or her approval. Generic information leads to additional questions and delays.

When is specialist lighting mandatory in zones with extreme heat?

Specialized lighting is mandatory as soon as the ambient temperature or the risks present outside the application range of standard industrial luminaires. In practice, that means as soon as the ambient temperature consistently exceeds 40 to 50°C, or as soon as there is infrared radiation, explosive atmospheres, or aggressive chemical exposure.

In steel mills, foundries and smelters, this is almost always the case. The combination of radiant heat and high ambient temperatures means that only luminaires specifically designed and tested for these conditions can operate safely and reliably. The same applies to ATEX zones, where the use of non-certified equipment is legally prohibited and carries with it direct liability.

Similar requirements apply to the specialization of luminaires in climate chambers and cooling systems, where temperatures are extremely low. The limit is therefore not only located at the heat level, but at any environment that falls outside the standard operational parameters. See also opportunities for heavy industry to get a better picture of which applications require specialized lighting.

Practical example: Farm Frites

Farm Frites struggled with LED lighting that frequently failed in drying tunnels and production ovens due to thermal stress and the intensive cleaning routine. Furthermore, the temperature range for the frieting tunnels was -40 °C to +70 °C during cleaning. A version of the stainless steel lighting system Snapper HT that complies with food safety guidelines was JEL designed: the Snapper HT-SS, with borosilicate glass, IP69K and a HACCP-compliant version. 78 units of 35 W were supplied, which provide 200 to 500 lux in the oven.

For a safety officer, the testing is especially interesting. The light design was tested against EN 12464-1 and the luminaire design against the HACCP requirements for food-safe production environments. These are demonstrable frameworks that can be included in a risk assessment, rather than general claims about heat resistance.

The choice of borosilicate glass also directly affects safety: it is resistant to strong temperature fluctuations and does not break upon thermal shock. If the safety officer is involved from the outset, such choices can be made to take into account the risks that exist in the workplace.

How lighting choices JEL Products help in hot zones

JEL Products It supports organizations that work in environments with extreme heat when making the right lighting choices, from the initial risk analysis to the commissioning and maintenance phases. The support is concrete and technically based, so that a safety officer can quickly obtain the information they need to make an informed decision.

What is JEL Products offered in this type of project:

Tailor-made technical advice, tailored to the specific ambient temperatures, radiation sources and risk profiles of the zone
Complete technical documentation, including data sheets, certificates and lighting calculations that comply with the requirements of the safety officer
Fluorescent lamps that have been tested and suitable for use at temperatures up to +120°C, such as Orca the Barracuda high-temperature floodlights
Lighting for the areas outside the ATEX zones, with referral to a certified Ex manufacturer for the zones themselves
Guidance throughout the entire process: from lighting design and engineering to installation, commissioning and maintenance
ISO9001 and VCA** certified process, which meets the requirements for quality and safety management within large industrial organizations

Want to know how JEL Products your organization can support you in lighting choices in hot or other demanding zones? Get in touch and discuss the specific situation with one of our specialists.

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