Средства индивидуальной защиты Hoffmann Group 2026 - страница 493

GBP 57 Rescue signs and fire protection signs must be made of a long-lasting luminescent material if there is no adequate emergency lighting. According to ASR A1.3 point 3.17, a safety sign with long-lasting luminescence remains illuminated after the general lighting has failed without any further energy supply. Long-lasting luminescence signs are subject to DIN 67510. This standard specifies the minimum light density values of the material. The light density indicates the lighting intensity which the safety sign continues to emit after removal of the light source. It is stated in millicandela per square metre (mcd/m2). The standard specifies the minimum values to be obtained after 2, 10, 30 and 60 minutes after the end of the excitation period. Depending on these values, the sign is classified into class A to C in accordance with DIN 67510-1. Class C constitutes the highest value. Changes to the technical regulations for workplaces were published in March 2022. Important adjustments were made, in particular relating to ASR A2.3 (escape routes and emergency exits) and ASR A1.3 (health and safety signs). Long-lasting luminescence safety signs must meet the requirements of DIN 67510-1 Class C as a minimum. Since this is only a guideline, the symbols with reduced light density (old standard) can still be used. However, if this is the case, a risk assessment must be carried out to ensure that the requirements are met. It is recommended to switch to luminance class C signs in order to easily comply with ASR and to provide legal certainty regarding presumption of conformity. Classification of luminance classes according to the corresponding light density Luminance class After 2 minutes After 10 minutes After 30 minutes After 60 minutes A mcd/m2 108 25 7 3 B mcd/m2 210 50 15 7 C mcd/m2 690 140 45 20 Selection aid for rescue signs and fire safety signs with long-lasting luminescence Sign format (H × W) mm 100 × 250 100 × 300 150 × 150 150 × 300 200 × 200 300 × 300 Viewing distance m up to 10 up to 10 up to 15 up to 15 up to 20 up to 30 Appearance during the day Appearance at night Detailed description of the material Aluminium PVC film Unplasticised PVC Acrylic Mate- PVC film Plastic Material Aluminium rial thick thin Unplasticised PVC Acrylic No long-lasting Long-lasting No long-lasting Long-lasting Long-lasting No long-lasting Long-lasting Long-lasting luminescence luminescence luminescence luminescence luminescence luminescence luminescence luminescence Thickness mm 0.5 0.5 0.4 0.4 0.1 1 1 8 Self-adhesive ● ● ● Long-lasting luminescence ● ● ● ● ● Temperature-resistant ● ● ● ● ● ● ● ● up to 70°C Temperature-resistant ● ● up to 120 – 140°C Weatherproof ● ● ● ● ● ● ● ● Indoor use ● ● ● ● ● ● ● ● Outdoor use ● ● ● Light density after 10 min. mcd/m2 90.4 95.5 95.5 77.2 77.2 Light density after 60 min. mcd/m2 13 11.8 11.8 10.7 10.7 Luminance class to DIN 67510 B B B B B Decay time* min. 1573 1492 1492 1140 1140 for use in ideal for safety and fire safety ideal for ideal for designation applications, ideal designation designation predominantly of escape and can be used can be used for designation of of escape and can be used of escape and used as a sign on Scope rescue routes, individually individually escape and rescue routes, individually rescue routes, doors and rooms, but as independent of a rescue routes, as independent of a as independent of a also as a safety sign power supply as independent of a power supply power supply power supply * The decay time specifies the time taken for the figure to fall to a specified value. 493