As the demand for high-visibility safety gear evolves, Active luminous warning clothing (equipped with LEDs or optical fibers) is becoming the new standard for worker safety in low-light conditions. However, Unlike traditional passive reflective vests, active safety clothing faces a critical challenge: electronics and water do not mix. For manufacturers and testing laboratories, Ensuring these garments can withstand rain is not just a quality preference – It is a mandatory compliance requirement under the latest technical specifications.
For manufacturers of LED safety vests and active warning gear, The DIN EN 14360 Rain Tower is an essential tool for R&D and quality assurance. Don’t let moisture failures compromise your product’s safety or compliance. Equip your laboratory with a test system that guarantees you meet the DIN TS 91418 Section 8.1 moisture requirements with confidence. [Contact Us Today] to learn more about our DIN EN 14360 Rain Tower Test System and request a quote.
| Test Standard | DIN EN ISO 20471:2017-03 | DIN EN 17353:2020-11 | DIN/TS 91418:2021-07 |
| Standard Status | International Standard (ISO) | European Standard (EN) | Technical Specification (TS) |
| Standard Attributes | High level of mandatory application. | Replaces the old EN 1150 & EN 13356. | Supplementary document; not a standalone replacement. |
| Core Focus | Professional protection for high-risk scenarios. | Protection for medium-to-low risk scenarios. | Technical specification for active lighting systems. |
| Target Audience | Professionals | Non-Professionals / Medium Risk | All Users of Active Lighting |
| (e.g., Road construction, airport crew, police). | (e.g., Night runners, students, warehouse staff). | (Supplements the other two standards). | |
| Luminous Principle | Passive Lighting | Passive Lighting | Active Lighting |
| (Fluorescent fabric + Retro-reflective tape). | (Fluorescent fabric + Enhanced visibility materials). | (LEDs, Optical fibers, Electroluminescent panels). | |
| Light Source | External Light Required | External / Natural Light | Self-Powered |
| Must be illuminated by headlights to be visible at night. | Relies on daylight or external illumination sources. | Visible in complete darkness without external light. | |
| Risk Level | High Risk | Medium Risk | Applies to Both Scenarios |
| (High-speed traffic, complex visual backgrounds). | (Slow traffic, decent lighting, or general visibility needs). | (Serves as an enhancement measure). | |
| Classification | Classes 1, 2, 3 | Types A, B, AB | No Independent Class |
| (Class 3 is highest, requiring the largest material area). | Type A (Day), Type B (Night), Type AB (All-weather). | Depends on the main standard being supplemented. |
| The technical specification DIN TS 91418 (Warning clothing with active lighting in addition to DIN EN ISO 20471 and DIN EN 17353) sets strict guidelines for the durability of active lighting devices. | The Regulatory Requirement: DIN TS 91418 Section 8.1 | |
| Specifically, Section 8.1 (Moisture) dictates a rigorous protocol for any product intended for outdoor use. The standard states: | ||
| If the manufacturer does not exclude the high and enhanced visibility clothing with active lighting from being worn in the rain, it shall be tested in operation in a rain tower as described in DIN EN 14360:2004-09 for 5 min and remain functional after completion of the test. | ||
| This
clause has three critical implications for manufacturers: 1 Testing is Mandatory: Unless you explicitly label your product as “dry use only” (which severely limits its marketability), You must test it. |
||
| 2
Live Operation: The clothing must be turned on (“in operation”)
during the rainfall. 3. Specific Equipment: You cannot simply use a spray nozzle. The test must be conducted in a Rain Tower that strictly adheres to DIN EN 14360. |
||
| To pass the DIN TS 91418 certification, consistency is key. A generic rain test cannot replicate the specific “high energy droplets” falling from above as required by the DIN EN 14360 standard. | Why Standard Spray Tests Are Not Enough (IP54) ? | |
| If your testing equipment fails to meet the precise flow rates, nozzle geometry, and drop height specified in EN 14360, your internal validation results may be rejected by certification bodies. This leads to costly re-designs and delayed time-to-market. | ||
| To help manufacturers and test centers meet these rigorous demands, we have developed a specialized DIN EN 14360 Rain Tower Test System. | Our Solution: The DIN EN 14360 Rain Tower Test System | |
| Designed specifically for testing protective clothing against rain, our system provides the exact environmental conditions required to validate active luminous warning clothing under DIN TS 91418 Section 8.1. | ||
| Full Compliance: Engineered strictly according to DIN EN 14360:2004-09 specifications, ensuring your test data is valid for certification. | Key Features of Our System: | |
| Active Testing Capability: The chamber is spacious enough to mount clothing on a mannequin while the active lighting device is in operation, allowing for real-time monitoring of LED functionality during the 5-minute exposure cycle. | ||
| Precision Control: Accurate control of water flow and droplet distribution to simulate the “impact from above with high energy droplets” as required by the standard. | ||
| Durability & Visibility: Built with high-quality materials and clear observation windows, allowing operators to easily detect if an active lighting device fails or flickers during the test. | ||
As highlighted by recent studies from KAN and DGUV, The safety industry is witnessing a decisive shift toward active luminous high-visibility clothing. While traditional retroreflective vests (per DIN EN ISO 20471) rely on external light sources like car headlights, they are often ineffective in diffuse light or shadows.
Active safety gear, equipped with LEDs or optical fibers, solves this by ensuring workers are visible even in pitch darkness. Research by the Institute for Occupational Safety and Health (IFA) has demonstrated that specific LED configurations can remain visible at distances of up to 150 meters without dazzling onlookers. However, incorporating electronics into textiles introduces a critical failure point: Moisture.
The future of high-visibility clothing is active, But the standard for quality is higher than ever. Don’t let moisture ingress be the barrier to your product’s success. Validate your active luminous warning gear with a test system built for compliance. Ensure your products are ready for the DIN TS 91418 standard and the “Safe active lighting” seal of approval.




Recommended Technical Resources
DIN EN 14360 Rain Tower Test System
Technical specifications and compliance features of our Rain Tower system for textile testing.
Moisture Testing for LED Safety Clothing
Meeting mandatory DIN TS 91418 & DIN EN 14360 requirements for active warning gear.
Control System: Main Interface Overview
Visual walkthrough of the primary monitoring dashboard and user control features.
Advanced Program Configuration
Step-by-step instructions for setting up complex, multi-stage environmental test cycles.
Precision Operation Parameters
Detailed explanation of operational settings to ensure precise testing conditions.
Data Analysis & Curve Display
Interpreting real-time test curves and managing long-term data storage reserves.