| Reaction to Fire Classification | EN 13501-1 classifies construction products according to their reaction to fire. | Specify the exact classification for each exposed wall, ceiling, floor, lining and insulation product. Do not accept a general statement such as “fireproof”. | Product classification report or certificate identifying the tested product, thickness, substrate and installation method. | Confirm that the supplied material and thickness match the tested configuration. |
| Non-Combustible / Very Limited Contribution | A1 A2 EN 13501-1 classes A1 and A2 represent the highest reaction-to-fire performance levels in this system. | Use A1 or A2-rated products where the local building authority, site risk assessment or project specification requires very limited contribution to fire. | EN 13501-1 classification document and the applicable national building-code requirement. | Check whether the classification applies to the complete assembly or only to an individual component. |
| Limited Contribution to Fire | B C These classes indicate lower reaction-to-fire performance than A1/A2 and higher performance than D/E/F. | For exposed interior linings, request the class required by the local code and the cabin’s intended occupancy; use the complete tested build-up rather than relying on a material name. | Classification report stating EN 13501-1, test method, product identity and end-use conditions. | Verify that adhesives, coatings, joints and surface finishes are included where relevant. |
| Lower Reaction-to-Fire Classes | D E F These classes indicate progressively less favourable reaction-to-fire performance; F represents no performance determined or failure to meet class E. | Do not select D, E or F by default for exposed interior surfaces. Confirm acceptability with the authority having jurisdiction before purchase. | Formal classification evidence and written confirmation of code compliance for the intended location. | Reject undocumented “fire-retardant” claims that do not state an EN 13501-1 class. |
| Smoke Production | EN 13501-1 smoke subclasses are: s1 s2 s3. Lower smoke production is represented by s1. | Where a smoke subclass is applicable, prefer the lowest smoke-production classification accepted by the local code and risk assessment. | Classification format such as “B-s1,d0” or “C-s2,d1”, where applicable to the tested product. | Check that the smoke classification is part of the same test result as the stated fire class. |
| Flaming Droplets / Particles | EN 13501-1 droplet subclasses are: d0 d1 d2. Lower flaming-droplet production is represented by d0. | For overhead or vertical interior linings, specify the droplet subclass required by the applicable building regulations. | Complete classification notation, for example “A2-s1,d0” where such a classification is valid for the product. | Ensure the evidence covers the actual finish, backing, thickness and mounting method. |
| Complete Wall and Ceiling Build-Up | Fire behaviour can depend on the full assembly, including insulation, vapour barriers, panels, adhesives, joints and fixings. | Require a documented assembly specification instead of evaluating only the outer decorative panel. | Section drawing, material schedule, test configuration and installation instructions. | Compare delivered layers and thicknesses with the tested or assessed assembly. |
| Electrical Additional Protection | A residual current device (RCD) with rated residual operating current IΔn ≤ 30 mA is commonly used as additional protection against electric shock where required by installation rules. | Provide 30 mA RCD protection for the applicable final circuits, subject to the local electrical code and the installation design. | Single-line diagram, protective-device schedule and electrical test certificate showing the RCD rating and protected circuits. | Confirm that the RCD protects the intended circuits and is not merely installed on an unrelated outlet. |
| RCD Type and Compatibility | RCD type must match the characteristics of connected loads. Type A can detect AC residual current and pulsating DC residual current; other types may be required for specific equipment. | Have the designer select the RCD type after reviewing heating, induction, power-electronic, battery, solar or other electronic loads. | Load schedule, RCD type specification, manufacturer installation instructions and design calculations where applicable. | Check compatibility with inverters, chargers, variable-speed equipment and other power-electronic devices. |
| RCD Test Function | RCDs should have a test facility and must be verified during commissioning using suitable electrical test equipment. | Include an accessible test button, clear circuit identification and a documented commissioning test. | RCD test results, commissioning record and user instructions for periodic testing according to local requirements. | Pressing the test button should disconnect the protected supply; arrange professional testing if it does not. |
| Earthing and Bonding | An RCD does not replace correct earthing, protective conductors, insulation, overcurrent protection or equipotential bonding. | Require a complete protective-earthing design and verification suitable for the cabin’s supply arrangement. | Earth-continuity, insulation-resistance, polarity, loop-impedance and RCD test records, as applicable. | Do not accept an RCD as the sole electrical safety measure. |
| Wet Areas and Outdoor Connection | Bathrooms, kitchens, external sockets and wet-site connections may have additional requirements for zones, equipment, ingress protection and disconnection. | Specify the intended wet-area layout, equipment locations, enclosure ratings and connection method before manufacturing. | Electrical layout, IP-rating schedule, local inspection requirements and connection instructions. | Confirm that site installation conditions match the design assumptions. |
| Documents Before Payment | Safety claims should be traceable to the actual model, materials and configuration being purchased. | Make delivery of safety documentation a contractual requirement and a pre-delivery approval milestone. | EN 13501-1 reports, assembly drawings, electrical schematic, RCD schedule, installation manual and inspection records. | Match document references, product descriptions, dimensions and revision dates to the purchase specification. |
| Regulatory Approval | EN 13501-1 and 30 mA RCD protection do not by themselves prove that a capsule cabin is legal for every site or use. | Obtain confirmation from the local building, fire-safety and electrical authorities before final installation. | Permit requirements, site-specific compliance statement and certificates issued by qualified professionals where required. | Verify occupancy, escape routes, accessibility, structural, energy, fire and electrical requirements for the destination country. |
