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TECHNICAL GUIDE Luminous flux / lifetime First of all, the lifetime indicated for our products is not based on the time until the product fails, but on the time until at least 50% of the products emit more than 70% of the initial flux. The lifetime of our products is calculated according to the lifetime of the key components: The LED and critical electronic components. We select our critical electronic components according to their lifetime and nominal operating temperature so that the electronic system functions during the entire product lifetime. Flux maintenance diagram Luminous flux (%) 105 95 85 75 65 55 45 1000 10 000 50 000 100 000 Time (hours) The LED is tested for 6000 h (more than 8 months) at various temperatures and readings are recorded every 1000 h. In this way, we obtain the LM80 of the LED. This enables us to calculate the TM21 of the product, i.e. the expected flux decreases over time. We therefore obtain the result that at operating temperature, 50% of the products emit more than 70% of their initial flux after 50 000 h. 50 000 h L70B50 → Ta = 25°C It is in this way that the LED lifetime is defined. Binning / range of LED colours Chromatic diagram During production, the LEDs produced have different colours and voltages which vary considerably and which are random. These characteristics are then measured to allow sorting of the LEDs according to the performance range. Each range therefore comprises LEDs which have similar colours, light intensities and voltages. The choice of LEDs in the MYLUM® luminaires, is the result of extremely selective binning (LED colour range) thus ensuring that the colour and intensity variation between LEDs is not visible. CCy 0.45 0.44 3000 K 0.43 3500 K 0.42 4000 K 0.41 0.40 4500 K 0.39 5000 K 0.38 5700 K 0.37 0.36 0.35 2700 K 6500 K 0.34 0.33 0.32 0.31 0.30 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.40 0.41 0.42 0.43 0.44 0.45 0.46 0.47 0.48 0.49 0.50 CCx BBL ANSI C78.377-2008 LED Standard MYLUM® TECHNICAL GUIDE Level of lighting in NF EN 12464-1 - Lighting of indoor work places (July 2011) indoor work places The standard NF EN 12 464-1 (lighting of indoor work places) indicates the maximum UGR levels not to be exceeded and the minimum CRI for indoor lighting per zone, task and activity. MEAN LIGHTING LEVEL TO BE MAINTAINED (lx) UGR Max. value CRI (or Ra) Min. value Corridors and circulation zones 100 28 40 Stairwells and loading bays 150 25 40 Stores and warehouses 100 25 60 Shops, sales areas 300 22 80 Check-out zones 500 19 80 Public areas, entrance halls 100 22 80 Counters 300 22 80 Restaurants, hotels, reception desks, cash desks, caretaker zone 300 22 80 Kitchens 500 22 80 School buildings, classrooms in primary and secondary schools 500 19 80 Industrial drawing rooms 750 16 80 300 500 500 300 200 19 19 19 22 25 80 80 80 80 80 ZONES, TASKS, ACTIVITIES Office lighting - Filing rooms - Typing pools, reading rooms - CAD work stations - Receptions - Archives Guide lighting LED PANEL 600 x 600 Neutral White 4000 K POWER 33 W LUMEN 3350 lm APPLICATION Offices / Shops / Public areas / Education / Health NORMAL LUX LEVEL SIZE OF THE ROOM Case study - room of 6 x 8 m 2 0 50 100 150 200 250 300 350 400 lx Room height: 2,70 m Coefficient for light reflection off walls: / Walls: 50% / Floor: 20% Ceiling: 70% Height of useful plane: 0,80 m Peripheral margin taken at useful plane: 0,50 m Maintenance factor: 0,90 INTENSE LUX LEVEL 300 lx (mean luminosity) 500 lx (mean luminosity) Length (m) Width (m) Surface (m2) 4 4 16 2 4 Number of LED panel recommended 4 6 24 3 5 4 8 32 4 7 6 6 36 4 7 6 8 48 5* 9 8 8 64 7 11 *Case study: false colour rendering, room of 48 m2 with 300 lx at useful plane height w w w. m y l u m . f r TECHNICAL GUIDE Protection index The protection index IP defines the degree of protection of elements against penetration of foreign bodies (1st number) and liquids (2nd number) of luminaires against solid or liquid bodies (CEI 60529, NF EN 60529, NF C 20-010) IPxx 1ST NUMBER: DEGREE OF PROTECTION OF LIVE ELEMENTS AGAINST PENETRATION OF SOLIDS DEGREES IPxx 2ND NUMBER: DEGREE OF PROTECTION OF LIVE ELEMENTS AGAINST PENETRATION OF LIQUIDS DESCRIPTION IP DESCRIPTION 0 Not protected IP X 0 No protection 1 Protection against solid bodies larger than 50 mm IP X 1 Protection against vertical water droplets (condensation) 2 Protection against solid bodies larger than 12 mm IP X 2 Protected against water droplets up to 15° from vertical 3 Protection against solid bodies larger than 2.5 mm IP X 3 Protected against rain water up to 60° from vertical 4 Protection against solid bodies larger than 1 mm IP X 4 Protected against water splashing from all directions 5 Total protection against dust penetration IP X 5 Protected against spray water from all directions 6 Total protection against dust penetration IP X 6 Protected against water splashing similar to green water IP X 7 Protected against the effects of immersion IP X 8 Protected against the effects of prolonged immersion under pressure Definition of appliances accepted according to the protection volumes: NF C 15-100/A2 Installation in humid zone VOLUME DISTANCE / SITE SEALING INDEX ACCEPTABLE ELECTRICAL APPLIANCES ELECTRICAL CLASS 0 Humid volumes (bathtub, wash hand basin, sink, shower) IP X 7 All appliances prohibited except S.E.L.V (12V AC max) and transformer installed outside volumes 0, 1 and 2 III 1 Volume above zone 0 up to 2.25 m in height IP X 5 All appliances prohibited except S.E.L.V (12V AC max) boiler and transformer installed outside volumes 0, 1 and 2 III 2 Volume within a perimeter of 60 cm around zone 0 and up to 2.25 m in height IP X 4 All appliances in volumes 0 and 1 are accepted I and II 3 Volume outside a perimeter of 60 cm around zone 0 up to 2.40 m for the limits of volume 2 and 75 cm above volumes 1 and 2 IP X 1 or IP X 3 All appliances in volumes 0, 1 and 2 are accepted I anD II Side view: Outside volume 3 m / finished floor level Outside volume Bathroom IP X 4 Volume 3 0,75 m IP X 1 or IP X 3 2,40m Volume 2 Volume 1 IP X 4 IP X 5 0,60m 0,60m Volume 2 2,25 m / finished floor level or bottom of bathtub if this is located above the finished floor level IP X 4 Wash hand basin MYLUM® Volume 2 Volume 0 IP X 7 Volume 0 IP X 7 Space under bathtub Volume 1 or Volume 3 TECHNICAL GUIDE Shock resistance index The resistance index IK defines the degree of protection of appliances against mechanical impact damage (EN 62262). IKxx weight height Index of protection against electric shock SHOCK RESISTANCE WEIGHT / DROP HEIGHT IK 1 / 0.140 joule 0.25 Kg : 56 mm IK 2 / 0.20 joule 0.25 Kg : 80 mm IK 3 / 0.35 joule 0.25 Kg : 140 mm IK 4 / 0.50 joule 0.25 Kg : 200 mm IK 5 / 0.70 joule 0.25 Kg : 280 mm IK 6 / 1 joule 0.25 Kg : 400 mm IK 7 / 2 joules 0.50 Kg : 400 mm IK 8 / 5 joules 1.70 Kg : 300 mm IK 9 / 10 joules 5.00 Kg : 200 mm IK 10 / 20 joules 5.00 Kg : 400 mm IK 10+ / 50 joules 10.00 Kg : 500 mm CLASS I General isolation luminaires with a system linking all accessible mechanical parts to a ground conductor. CLASS II Luminaires for which the accessible elements are separated from the live elements by a double isolation or reinforced isolation. CLASS III Luminaires supplied at safety extra low voltage (S.E.L.V.) which does not exceed 50 V (effective alternating current value). The electrical protection classes are defined in particular in accordance with standard IEC 60590-1 w w w. m y l u m . f r