| 1 | Hazardous-area certification | Equipment used in explosive atmospheres should be certified for the applicable protection concept and intended market. IECEx and ATEX are distinct certification frameworks. | Request current certificates and check that the exact model, enclosure, cable entries, and intended installation are within the certificate’s scope. |
| 2 | Zone and gas-group suitability | Equipment selection depends on the hazardous-area zone and the substances present. Gas groups include IIA, IIB, and IIC; IIC represents the most demanding gas group in this classification. | Match the product marking to the vessel’s hazardous-area drawings, gas group, and site requirements. Do not assume one model suits every zone or atmosphere. |
| 3 | Temperature class | For gas atmospheres, temperature classes specify maximum permitted equipment surface temperatures: T1 450°C, T2 300°C, T3 200°C, T4 135°C, T5 100°C, and T6 85°C. | Confirm that the marked temperature class is suitable for the hazardous substance and ambient-temperature range at the installation location. |
| 4 | Ingress protection | IEC 60529 defines IP ratings. IP66 indicates dust-tight protection and protection against powerful water jets; IP67 includes protection against temporary immersion under specified test conditions. | Choose an IP rating for the actual exposure, such as washdown, spray, or temporary immersion. Check that the rating applies to the complete installed assembly. |
| 5 | Marine corrosion resistance | Salt-laden air and seawater spray can accelerate corrosion. Suitable enclosure materials and coatings depend on location, exposure, maintenance, and installation details. | Ask for enclosure and fastener material specifications, coating details, and corrosion-test reports. Check the test method and duration rather than treating a test result as a guaranteed service life. |
| 6 | Marine type approval | Vessel projects may require product approval or acceptance under the applicable marine classification rules and project specifications. Requirements vary by vessel and installation. | Confirm whether marine type approval is required and request approval documents for the exact model and intended use. Verify acceptance with the project’s responsible parties. |
| 7 | Light output and distribution | Illuminance at the work surface depends on lumen output, beam distribution, mounting height, spacing, and surface reflectance; lumen output alone does not establish lighting performance. | Request photometric data and assess the proposed layout against the task and applicable lighting requirements. Check glare, uniformity, and emergency-lighting needs where relevant. |
| 8 | Electrical compatibility | Marine installations can use different supply voltages, frequencies, and electrical systems. LED drivers and other electronic components must be suitable for the specified supply and operating conditions. | Verify rated input voltage and frequency, power consumption, inrush current where relevant, earthing arrangements, and compatibility with the vessel’s electrical system. |
| 9 | Environmental and mechanical testing | Vibration, shock, temperature, and humidity requirements depend on the installation and project specification. A test claim should identify the method, conditions, and product configuration tested. | Request relevant test reports and confirm they cover the supplied model, mounting arrangement, and operating-temperature range—not merely a similar product family. |
| 10 | Documentation and lifecycle support | Safe installation and maintenance depend on correct instructions, certification documents, wiring information, and approved replacement parts. Changes to certified equipment can affect its approval. | Review installation and maintenance manuals, spare-part availability, warranty terms, lead times, and technical support arrangements. Confirm that repairs follow the certification conditions. |