CHECKLIST FOR SAFE INSTALLATION IN CLASSIFIED AREAS: ESSENTIAL REQUIREMENTS
A technical checklist to ensure safe installations in classified areas, complying with current regulations and utilizing certified equipment to reduce risks and ensure operational continuity.
The classified areas represent one of the greatest challenges in the design and installation of industrial electrical systems. The presence of flammable gases, vapors, or dusts demands strict adherence to technical regulations and the use of certified equipment, as any error can lead to severe risks for personnel, assets, and operations.
Having a verification checklist before, during, and after installation is a key tool to ensure the safety, regulatory compliance, and reliability of the electrical system.
At Soldexel, we offer certified solutions and technical support for projects in classified areas and demanding industrial environments, ensuring the safety and reliability of every installation.
The classified areas represent one of the greatest challenges in the design and installation of industrial electrical systems. The presence of flammable gases, vapors, or dusts demands strict adherence to technical regulations and the use of certified equipment, as any error can lead to severe risks for personnel, assets, and operations.
Having a verification checklist before, during, and after installation is a key tool to ensure the safety, regulatory compliance, and reliability of the electrical system.
A classified area installation is one located in an environment where a potentially explosive atmosphere may exist, either continuously, intermittently, or occasionally. These areas are classified according to the type of substance present (gas, vapor, or dust) and the probability of its occurrence, under schemes such as Classes, Divisions, or Zones, as defined by international standards and adopted in national regulations.
Checklist for Safe Installations in Classified Areas
- Correct Definition of Area Classification
- Identify whether it is Class I, II, or III and its respective Division or Zone.
- Document the classification as part of the project design.
- Ensure that all selected equipment is compatible with the specified classification.
- Use of Certified Equipment
- Verify that enclosures, conduit bodies, luminaires, and accessories are explosion-proof where applicable.
- Confirm certifications under RETIE and international standards such as IEC, UL, or ATEX, as appropriate.
- Avoid using equipment designed solely for outdoor use (NEMA 4) in areas requiring NEMA 7 protection.
- Appropriate Selection of Protection Degree
- Validate the required enclosure type according to the environment (corrosion, humidity, dust, temperature).
- Ensure compatibility between electrical equipment and actual operating conditions.
- Connections and Sealing
- Utilize certified connectors, seals, and accessories for classified areas.
- Ensure adequate sealing to prevent the propagation of gases or vapors.
- Adhere to the distances and installation methods required by regulations.
- Grounding and Electrical Continuity
- Verify reliable and continuous grounding systems.
- Ensure the proper connection of all metallic parts.
- Comply with the values and methods mandated by RETIE.
- Documentation and Traceability
- Maintain technical data sheets, certificates, and manuals for all installed equipment.
- Keep records for audits, inspections, and certification processes.
- Ensure consistency between the installed components and what was approved in the project engineering.
- Final Inspection and Maintenance
- Conduct inspections prior to commissioning.
- Schedule periodic maintenance based on the type of area and equipment.
- Immediately replace any component that loses its certified status.
A safe installation in classified areas does not rely on a single component, but rather on the proper integration of engineering, certified products, and sound installation practices. Applying this checklist mitigates risks, prevents rework, and ensures regulatory compliance from the project's inception.
Soldexel SAS. Committed to its customers
In compliance with current regulations, we provide you with our Return and Warranty policies. Click on the following links to view the documentation.
