SIST EN 15193:2007
(Main)Energy performance of buildings - Energy requirements for lighting
Energy performance of buildings - Energy requirements for lighting
This European Standard specifies the calculation methodology for the evaluation of the amount of energy used for indoor lighting inside the building and provides a numeric indicator for lighting energy requirements used for certification purposes. This European Standard can be used for existing buildings and for the design of new or renovated buildings. It also provides reference schemes to base the targets for energy allocated for lighting usage. This European Standard also provides a methodology for the calculation of instantaneous lighting energy use for the estimation of the total energy performance of the building. Parasitic powers not included in the luminaire are excluded.
In this European Standard, the buildings are classified in the following categories: offices, education buildings, hospitals, hotels, restaurants, sports facilities, wholesale and retail services and manufacturing factories.
In some locations outside lighting may be fed with power from the building. This lighting may be used for illumination of the façade, open-air car park lighting, security lighting, garden lighting etc. These lighting systems may consume significant energy and if they are fed from the building, this load will not be included in the Lighting Energy Numeric Indicator or into the values used for heating and cooling load estimate. If metering of the lighting load is employed, these loads may be included in the measured lighting energy.
Energetische Bewertung von Gebäuden - Energetische Anforderungen an die Beleuchtung
Diese Norm führt die Berechnungswege auf für die Ermittlung der Energiemenge, die zur Beleuchtung in Gebäuden benötigt wird, und stellt einen numerischen Indikator bereit für energetische Anforderungen für Beleuchtungszwecke, wie sie für Zertifizierungszwecke benötigt werden. Diese Norm kann auf bestehende Gebäude und für die Auslegung von neuen oder renovierten Gebäuden angewendet werden. Sie stellt Referenzverfahren zur Verfügung, um Zielsetzungen für den Energieverbrauch zu begründen, der der Beleuchtung zuzuordnen ist. Diese Norm stellt eine Methodik zur Berechnung des dynamischen Verbrauchs an Lichtenergie zur Abschätzung des Gesamtenergieverbrauchs des Gebäudes zur Verfügung.
Performance énergétique des bâtiments - Exigences énergétiques pour l'éclairage
La présente norme spécifie la méthodologie de calcul permettant d'évaluation la quantité d'énergie utilisée pour l'éclairage d'un bâtiment et fournit l'indicateur numérique pour les exigences énergétiques en matiere d'éclairage appliquées en vue de la certification. La présente norme peut etre utilisée pour les bâtiments existants et pour la conception de bâtiments neufs ou rénovés. Elle présente également des projets de référence pour fixer les bases des cibles énergétiques affectées a l'éclairage. La présente norme fournit également une méthodologie pour le calcul de l'énergie dynamique d'éclairage permettant d'estimer la performance énergétique totale du bâtiment.
Energijske značilnosti stavb - Energijske zahteve za osvetlitev
Ta evropski standard določa metodologijo izračunavanja za ocenjevanje količine energije, ki se uporablja za notranjo osvetlitev v stavbah, in podaja numerični pokazatelj energijskih zahtev za osvetlitev, ki se uporablja za namene certifikacije. Ta evropski standard se lahko uporablja za obstoječe stavbe in za načrtovanje novih ali obnovljenih stavb. Prav tako podaja referenčne sheme kot osnovo za ciljne količine energije, namenjene za osvetlitev. Ta evropski standard tudi podaja metodologijo za izračunavanje trenutne porabe energije za osvetlitev za oceno celotnih energijskih lastnosti stavbe. Parazitska energija, ki ni zajeta v osvetlitev, je izključena. V tem evropskem standardu so stavbe razvrščene v naslednje kategorije: pisarne, šole, bolnišnice, hoteli, restavracije, športni objekti, velikoprodajne in maloprodajne storitve in proizvodne tovarne. Na nekaterih lokacijah se zunanja osvetlitev lahko napaja z energijo iz stavbe. Ta osvetlitev se lahko uporabi za osvetlitev fasade, osvetlitev parkirišč na prostem, varnostno osvetlitev, vrtno osvetlitev, itd. Ti sistemi osvetlitve lahko porabijo precej energije, in če se napajajo iz stavbe, se ta obremenitev ne bo vključila v numerični pokazatelj energijskih zahtev za osvetlitev (LENI) ali v vrednosti, ki se uporabljajo za ocene obremenitve ogrevanja in hlajenja. Če se uporabi merjenje obremenitve osvetlitve, se te obremenitve lahko vključijo v merjeno energijo za osvetlitev.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Energetische Bewertung von Gebäuden - Energetische Anforderungen an die BeleuchtungPerformance énergétique des bâtiments - Exigences énergétiques pour l'éclairageEnergy performance of buildings - Energy requirements for lighting91.160.10Notranja razsvetljavaInterior lighting91.120.10Toplotna izolacija stavbThermal insulationICS:Ta slovenski standard je istoveten z:EN 15193:2007SIST EN 15193:2007en01-december-2007SIST EN 15193:2007SLOVENSKI
STANDARD
SIST EN 15193:2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15193September 2007ICS 91.140.99; 91.160.10 English VersionEnergy performance of buildings - Energy requirements forlightingPerformance énergétique des bâtiments - Exigencesénergétiques pour l'éclairageEnergetische Bewertung von Gebäuden - EnergetischeAnforderungen an die BeleuchtungThis European Standard was approved by CEN on 15 March 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15193:2007: ESIST EN 15193:2007
EN 15193:2007 (E) 2 Contents Page Foreword.4 Introduction.5 1 Scope.7 2 Normative references.7 3 Terms and definitions.7 4 Calculating energy used for lighting.11 4.1 Total energy used for lighting.11 4.1.1 Total estimated energy.11 4.1.2 Total annual energy used for lighting.11 4.2 Lighting Energy Numeric Indicator (LENI).11 5 Metering.12 5.1 General.12 5.2 Load segregation.12 5.3 Remote metering.12 6 Calculation of lighting energy in buildings.12 6.1 Installed lighting power.12 6.1.1 General.12 6.1.2 Luminaire.13 6.1.3 Luminaire power (Pi).13 6.1.4 Parasitic powers (Pci and Pei).13 6.2 Calculation methods.13 6.2.1 Quick method.13 6.2.2 Comprehensive method.13 6.2.3 Determination of constant illuminance factor Fc.15 7 Benchmark of lighting energy requirements.15 8 Lighting design and practice.16 Annex A (informative)
Metering of lighting circuit.17 Annex B (informative)
Measurement method of total power of luminaires and associated parasitic power.20 B.1 Introduction.20 B.2 Test measurement of luminaire power during normal operation.20 B.3 Standard test conditions.20 B.4 Electrical measuring instruments.20 B.5 Test luminaires.20 B.6 Test voltage.20 B.7 Luminaire power (Pi).21 B.8 Luminaire parasitic power with lamps off (Ppi).21 B.9 Emergency lighting luminaire parasitic input power (Pei).21 B.10 Lighting controls standby parasitic power (Pci).21 B.11 Default luminaire power for existing lighting installations.21 B.12 Default parasitic energy for existing lighting installations.21 Annex C (informative)
Determination of the daylight dependency factor FD,n.22 C.1 General.22 C.2 Building segmentation: Spaces benefiting from daylight.24 C.3 Daylight supply.27 C.3.1 Vertical façades.27 SIST EN 15193:2007
EN 15193:2007 (E) 3 C.3.2 Rooflights.36 C.4 Daylight dependent artificial lighting control, FD,C.52 C.5 Monthly method.52 Annex D (informative)
Determination of occupancy dependency factor FO.54 D.1 Introduction.54 D.2 Detailed determination of FO.54 D.3 Motivation for the choice of FO functions.59 Annex E (informative)
Determination of the constant illuminance factor FC.61 E.1 Introduction.61 E.2 Power for constant illuminance factor.61 E.3 Constant illuminance factor (Fc).61 Annex F (informative)
Benchmark values and lighting design criteria.63 Annex G (informative)
Default values.66 G.1 The default values for annual operating hours relating to building type are given in Table G.1.66 Annex H (informative)
Other considerations.68 H.1 Individual dimming.68 H.2 Algorithmic lighting.68 H.3 Light pipes.68 H.4 Lighting installations with scene setting.69 H.5 Daylight guidance.69 H.5.1 Vertical façades.69 H.5.2 Rooflights.70 Annex I (informative)
List of Symbols.73 Bibliography.77
SIST EN 15193:2007
EN 15193:2007 (E) 4 Foreword This document (EN 15193:2007) has been prepared by Technical Committee CEN/TC 169 “Light and lighting”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2008, and conflicting national standards shall be withdrawn at the latest by March 2008. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 15193:2007
EN 15193:2007 (E) 5 Introduction This European Standard was devised to establish conventions and procedures for the estimation of energy requirements of lighting in buildings, and to give a methodology for a numeric indicator of energy performance of buildings. It also provides guidance on the establishment of notional limits for lighting energy derived from reference schemes. Having the correct lighting standard in buildings is of paramount importance and the convention and procedures assume that the designed and installed lighting scheme conforms to good lighting practices. For new installations the design should be to EN 12464-1. This European Standard also gives advice on techniques for separate metering of the energy used for lighting that will give regular feedback on the effectiveness of the lighting controls. The methodology of energy estimation not only provides values for the numeric indicator but will also provide input for the heating and cooling load impacts on the combined total energy performance of building indicator. Figure 1 gives an overview of the methodology and the flow of the processes involved. The methodology and format of the presentation of the results would satisfy the requirements of the EC Directive on Energy Performance of Buildings 2002/91/EC.
SIST EN 15193:2007
EN 15193:2007 (E) 6 Lighting Energy RequirementsCalculatedMeteredComprehensivemethodQuickmethodMeteredmethodAny periodRefined dataAnnual basedMonthly basedHourly basedDefault dataAnnual based Figure 1 — Flow chart illustrating alternative routes to determine energy use
SIST EN 15193:2007
EN 15193:2007 (E) 7 1 Scope This European Standard specifies the calculation methodology for the evaluation of the amount of energy used for indoor lighting inside the building and provides a numeric indicator for lighting energy requirements used for certification purposes. This European Standard can be used for existing buildings and for the design of new or renovated buildings. It also provides reference schemes to base the targets for energy allocated for lighting usage. This European Standard also provides a methodology for the calculation of instantaneous lighting energy use for the estimation of the total energy performance of the building. Parasitic powers not included in the luminaire are excluded. In this European Standard, the buildings are classified in the following categories: offices, education buildings, hospitals, hotels, restaurants, sports facilities, wholesale and retail services and manufacturing factories. In some locations outside lighting may be fed with power from the building. This lighting may be used for illumination of the façade, open-air car park lighting, security lighting, garden lighting etc. These lighting systems may consume significant energy and if they are fed from the building, this load will not be included in the Lighting Energy Numeric Indicator or into the values used for heating and cooling load estimate. If metering of the lighting load is employed, these loads may be included in the measured lighting energy. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1838, Lighting applications — Emergency lighting EN 12193, Light and lighting — Sports lighting EN 12464-1:2002, Light and lighting — Lighting of work places — Part 1: Indoor work places EN 60570, Electrical supply track systems for luminaires (IEC 60570:2003, modified) EN 60598 (all parts), Luminaires EN 61347 (all parts), Lamp controlgear 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 built-in luminaires fixed luminaires installed to provide illumination in the building 3.2 control gear components required to control the operation of the lamp(s) SIST EN 15193:2007
EN 15193:2007 (E) 8 3.3 power
3.3.1 luminaire power (Pi) electrical power from the mains supply consumed by the lamp(s), control gear and control circuit in or associated with the luminaire, measured in watts which includes any parasitic power when the luminaire is turned on NOTE The rated luminaire power (Pi) for a specific luminaire may be obtained from the luminaire manufacturer. 3.3.2 total installed lighting power in the room or zone (Pn) power of all luminaires in the room or zone, measured in watts niiPP=∑[W]
(1) 3.3.3 parasitic power 3.3.3.1 luminaire parasitic power (PPi) electrical power from the mains supply consumed by the charging circuit of emergency lighting luminaires and the standby power for automatic controls in the luminaire when lamps are not operating, measured in watts Ppi = Pci + Pei [W] (2) 3.3.3.2 parasitic power of the controls only during the time with the lamps off (Pci) stand-by power for any controls and/or any battery charging power consumed by an emergency lighting system when the luminaire is turned off, measured in watts 3.3.3.3 emergency lighting charging power (Pei) input power to the charging circuit of emergency luminaires when the lamps are not operating, measured in watts 3.3.4 total installed parasitic power of the controls in the room or zone (Ppc) input power of all control systems in luminaires in the room or zone when the lamps are not operating, measured in watts pcciiPP=∑ [W] (3) SIST EN 15193:2007
EN 15193:2007 (E) 9 3.3.5 total installed charging power of the emergency lighting luminaires in the room or zone (Pem) input charging power of all emergency lighting luminaires in the room or zone, measured in watts emeiiPP=∑
[W]
(4) 3.4 energy
3.4.1 total energy used for lighting (Wt) energy consumed in period t, by the sum of the luminaires when the lamps are operating, plus the parasitic loads when the lamps are not operating, in a room or zone, measured in kWh 3.4.2 energy consumption used for illumination (WL,t) energy consumed in period t, by the luminaire when the lamps are operating to fulfil the illumination function and purpose in the building, measured in kWh 3.4.3 luminaire parasitic energy consumption (WP,t) parasitic energy consumed in period t, by the charging circuit of emergency lighting luminaire and by the standby control system controlling the luminaires when the lamps are not operating, measured in kWh 3.5 time 3.5.1 operating time (t) time period for the energy consumption measured in hours [h] 3.5.2 annual operating time (to) annual number of operating hours of the lamp(s) and luminaires with the lamps operating
to = tD + tN [h] (5) NOTE This number is determined depending on the building use. 3.5.3 standard year time (ty) time taken for one standard year to pass, taken as 8 760 h 3.5.4 daylight time usage (tD) operating hours during the daylight time, measured in hours SIST EN 15193:2007
EN 15193:2007 (E) 10 3.5.5 non-daylight time usage (tN) operating hours during the non-daylight time, measured in hours 3.5.6 emergency lighting charge time (tem) operating hours during which the emergency lighting batteries are being charged, measured in hours 3.5.7 scene setting operation time (ts) operating hours of the scene setting controls, measured in hours 3.6 useful area (A) floor area inside the outer walls excluding non-habitable cellars and un-illuminated spaces, measured in m2 3.7 dependency factors
3.7.1 daylight dependency factor (FD) factor relating the usage of the total installed lighting power to daylight availability in the room or zone 3.7.2 occupancy dependency factor (FO) factor relating the usage of the total installed lighting power to occupancy period in the room or zone 3.7.3 absence factor (FA) factor relating to the period of absence of occupants 3.7.4 constant illuminance factor (FC) factor relating to the usage of the total installed power when constant illuminance control is in operation in the room or zone 3.8 Maintenance Factor (MF) ratio of the average illuminance on the working plane after a certain period of use of a lighting installation to the initial average illuminance obtained under the same conditions for the installation NOTE CIE 97 gives further information. 3.9 Lighting Energy Numeric Indicator (LENI) numeric indicator of the total annual lighting energy required in the building and given in kWh (m2 x year) SIST EN 15193:2007
EN 15193:2007 (E) 11 NOTE The LENI can be used to make direct comparisons of the lighting energy used in buildings that have similar functions but are of different size and configuration. 4 Calculating energy used for lighting 4.1 Total energy used for lighting 4.1.1 Total estimated energy The total estimated energy required for a period in a room or zone shall be estimated by the following equation:
Wt = WL,t + WP,t
[kWh]
(6) where An estimate of the lighting energy required to fulfil the illumination function and purpose in the building (WL,t) shall be established using the following equation:
WL,t = ∑{ (Pn x Fc) × [(tD × Fo × FD) + (tN × Fo)]}/1 000 [kWh]
(7) An estimate of the parasitic energy (WP,t) required to provide charging energy for emergency lighting and for standby energy for lighting controls in the building shall be established using the following equation:
WP,t = ∑{{Ppc × [ty – (tD + tN)]} + (Pem × te)}/1 000 [kWh]
(8) NOTE 1 The total lighting energy can be estimated for any required period t (hourly, daily, weekly, monthly or annually) in accordance with the time interval of the dependency factors used. NOTE 2
For existing buildings, WP,t and WL,t, can be established more accurately by directly and separately metering the energy supplied to the lighting (see Clause 5). NOTE 3 This estimation does not include the power consumed by control systems remote from the luminaire and not drawing power from the luminaire. Where known this should be added. NOTE 4 Equation (8) does not include the power consumed by a central battery emergency lighting system. 4.1.2 Total annual energy used for lighting W = WL + WP [kWh/year]
(9) where
An estimate of the annual lighting energy required to fulfil the illumination function and purpose in the building (WL) and annual parasitic energy (WP) required to provide charging energy for emergency lighting and for standby energy for lighting controls in the building shall be established by Equations (7) and (8) respectively.
4.2 Lighting Energy Numeric Indicator (LENI) Lighting Energy Numeric Indicator for the building shall be established using the following equation: LENI = W/A
[kWh/(m2 × year)]
(10) where SIST EN 15193:2007
EN 15193:2007 (E) 12 W
is the total annual energy used for lighting [kWh/year]; A
is the total useful floor area of the building [m2]. 5 Metering 5.1 General The lighting consumption shall be separately measured using one of the following methods: a) kWh meters on dedicated lighting circuits in the electrical distribution; b) local power meters coupled to or integrated in the lighting controllers of a lighting management system; c) a lighting management system that can calculate the local consumed energy and make this information available to a building management system (BMS); d) a lighting management system that can calculate the consumed energy per building section and make this information available in an exportable format, e.g. a spread sheet format; e) a lighting management system that logs the hours run, the proportionality (dimming level) and relates this to its internal data base on installed load. NOTE The measured value may be compared with the real kilowatt hours consumption measured during commissioning of the building. 5.2 Load segregation The network of a BMS/lighting management system shall provide the same function in segregation as in the power distribution. 5.3 Remote metering a. Remote metering is recommended for buildings having completely segregated power distribution systems. b. Remote metering in buildings can also be used for more intelligent (lighting management) systems to provide data. NOTE Annex A gives examples of metering methods. 6 Calculation of lighting energy in buildings 6.1 Installed lighting power 6.1.1 General There are two forms of installed power in buildings, luminaire power and parasitic power. Luminaire power, which provides power for functional illumination shall conform to EN 12193 for lighting of sports facilities and EN 12464-1 for lighting of indoor work places. SIST EN 15193:2007
EN 15193:2007 (E) 13 Parasitic power, which provides power for lighting control systems and for charging batteries for emergency lighting shall conform to EN 1838. 6.1.2 Luminaire Luminaires and electrical components of luminaires shall be designed and constructed in accordance with the relevant parts of EN 60598, EN 60570 and/or EN 61347. 6.1.3 Luminaire power (Pi) The total rated power (in watts) of a specific luminaire should be obtained in accordance with Annex B. 6.1.4 Parasitic powers (Pci and Pei) Parasitic power should be obtained in accordance with Annex B. 6.2 Calculation methods 6.2.1 Quick method When using the quick method of estimation of the annual lighting energy estimation for typical building types, Equation (9) shall be used. NOTE 1 The energy requirement estimation by the quick method will yield higher LENI values than that obtained by the more accurate comprehensive method described in 6.3. NOTE 2 If the national values are not available, use the default values for tD, tN, Fc, FD, FO and Wp are given in Annexes E, F and G. 6.2.2 Comprehensive method 6.2.2.1 General The comprehensive method allows for a more accurate determination of the lighting energy estimations for different periods e.g. annual or monthly. When using the comprehensive method of lighting energy estimations Equation (6) shall be used for the required period t. NOTE 1 The daylight dependency factor (FD) for a room or zone can be determined as described in Annex C. NOTE 2 The occupancy dependency factor (FO) for a room or zone can be determined as described in Annex D. NOTE 3 This method may be used for any periods and for any locations provided that the full estimation of occupancy and daylight availability is predicted. SIST EN 15193:2007
EN 15193:2007 (E) 14 Compute Obstruction IndexDaylightPenetrationObstructionYesNoYesStandard operating hoursUse standard operating hoursDetermine correction factorNoYesMonthly MethodYesNoDetermine FD,CF
= 1F
=1- (F
x F
)For each monthDetermine Monthly daylight supply factorF
month = FDetermine impact for control systemFD,SD,SI
=
OCompute Transparency IndexI
= TCompute Depth Index(Equation C8)(Equation C6)I
= De(Equation C7)Determine Daylight Penetration I(Table C1 b))Determine Daylight Supply F(Table C2 a))NoI
= 1OF
month = 1 - ( F
x F
x C
)D,nD,SD,CD,SD,SD,nD,SD,nD,CD,C Figure 2 — Flow chart illustrating the determination of the daylight dependency factor FD,n in a zone SIST EN 15193:2007
EN 15193:2007 (E) 15 6.2.2.2 Determination of the daylight dependency factor FD,n
The determination of the daylight dependency factor FD,n for the nth room or zone should be made by the methods described in Annex C for annual and monthly time period and the process illustrated in the flow chart (Figure 2). The daylight dependency factor FD,n for room or zone in the building is determined as a function of the daylight supply factor FD,S,n and the daylight dependent electric lighting control factor FD,C,n and given by the following equation: FD,n = 1 - (FD,S,n X FD,C,n)
(11) where FD,S,n
is the daylight supply factor that takes into account the general daylight supply in the zone n. It represents, for the considered time interval, the contribution of daylight to the total required illuminance in the considered zone n. See C.3.1.3 and C.3.2.2; FD,C,n
is the daylight control factor that accounts for the daylight depending electric lighting control system’s ability to exploit the daylight supply in the considered zone n see C.4. NOTE 1 FD,n can be determined for any time period (annual, monthly or hourly). The factor needs to be adjusted according to the period of the operation time at daytime tD. NOTE 2 Other daylight supply systems that rely on enhancements to increase or make possible daylight penetration beyond the perimeter zones are available. These are not explicitly covered in this European Standard but may be calculated by using daylight factors or other methods for the calculation of FD. NOTE 3 In zones without daylight availability, FD = 1. NO
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