NZS 20086:2022
Light and lighting – Energy performance of lighting in buildings
NZS 20086:2022 introduces new concepts, metrics and methods that greatly enhance the ability of stakeholders to measure or calculate, holistic energy performance and thus operational carbon emissions. Standard covers three methods for the assessment of the energy required for electric lighting within a building, either by calculation (method 1 and method 2) or by direct metering of the lighting circuit (method 3). The calculation method 1 offers two options: 1) for new or refurbished buildings; and 2) for existing buildings. For new and refurbished buildings - it also offers a quick calculation method 2 for the annual energy estimation. The inclusion of refurbished building applications is particularly relevant to NZ conditions.
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NZS 20086 2022 Light and lighting –Energy performance oflighting in buildings
Committee representation
Acknowledgement
Copyright
CONTENTS
Referenced documents
Latest revisions
Review of standards
Preface
New Zealand national variations
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
4.1 Symbols
4.2 Subscripts
5 Description of the methods
5.1 General
5.2 Output of the method 1— Comprehensive method
5.3 Optional methods
5.3.1 Method 2 — Quick calculation method
5.3.2 Method 3 — Direct metering method
6 Method 1 — Calculation of the energy required for lighting
6.1 Output data
6.2 Calculation time steps
6.3 Input data
6.3.1 Lighting system data
6.3.2 Product data
6.3.3 System design data
6.3.4 Operating conditions
6.3.5 Constants and physical data
6.4 Calculation procedure
6.4.1 Applicable time step
6.4.2 Operating conditions calculation
6.4.3 Energy calculation
6.5 Expenditure factors for lighting systems
7 Method 2 — Quick calculation of the energy required for lighting
7.1 Output data
7.2 Calculation time steps
7.3 Input data
7.3.1 Lighting system data
7.3.2 Luminaire data
7.3.3 System design data
7.3.4 Operating conditions
7.3.5 Constants and physical data
7.4 Calculation procedure
7.4.1 Applicable time step
7.4.2 Operating conditions calculation
7.4.3 Energy calculation
7.5 Expenditure factors for lighting systems
8 Method 3 — Metered energy used for lighting
8.1 Output data
8.2 Calculation time steps
8.3 Input data
8.4 Calculation procedure of annual energy
9 Quality control
9.1 Method 1
9.2 Method 2
9.3 Method 3
10 Compliance check
10.1 General
10.2 Method 1
10.3 Method 2
10.4 Method 3
Annex A (informative) Input data sheet with default values and choices
Annex B (normative) Simplified method for installed power estimation
Annex C (normative) Assessment of the installed power for lighting systems in existing buildings
Annex D (normative) Occupancy estimation
Annex E (informative) Expenditure factors for lighting systems
Annex F (normative) Constant illuminance
Bibliography
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References
Interior and workplace lighting - Part 1: General principles and recommendations
Interior and workplace lighting - Part 2.1: Specific applications - Circulation spaces and other general areas
Interior and workplace lighting - Part 2.2: Specific applications - Office and screen-based tasks
Interior and workplace lighting - Part 2.3: Specific applications - Educational and training facilities
Interior lighting - Part 2.4: Industrial tasks and processes
Interior and workplace lighting - Part 2.5: Hospital and medical tasks
Interior and workplace lighting - Part 5: Outdoor workplace lighting
Lighting equipment - Non-active mode power measurement
Related Information
Similar Standards
-
AS/NZS 1680.0:2009
Interior lighting - Safe movement
-
AS/NZS 1680.1:2006
Interior and workplace lighting - Part 1: General principles and recommendations -
AS/NZS 1680.2.1:2008
Interior and workplace lighting - Part 2.1: Specific applications - Circulation spaces and other general areas -
AS/NZS 1680.2.2:2008
Interior and workplace lighting - Part 2.2: Specific applications - Office and screen-based tasks
Related News
NZS 20086 2022 Light and lighting –Energy performance oflighting in buildings
Committee representation
Acknowledgement
Copyright
CONTENTS
Referenced documents
Latest revisions
Review of standards
Preface
New Zealand national variations
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
4.1 Symbols
4.2 Subscripts
5 Description of the methods
5.1 General
5.2 Output of the method 1— Comprehensive method
5.3 Optional methods
5.3.1 Method 2 — Quick calculation method
5.3.2 Method 3 — Direct metering method
6 Method 1 — Calculation of the energy required for lighting
6.1 Output data
6.2 Calculation time steps
6.3 Input data
6.3.1 Lighting system data
6.3.2 Product data
6.3.3 System design data
6.3.4 Operating conditions
6.3.5 Constants and physical data
6.4 Calculation procedure
6.4.1 Applicable time step
6.4.2 Operating conditions calculation
6.4.3 Energy calculation
6.5 Expenditure factors for lighting systems
7 Method 2 — Quick calculation of the energy required for lighting
7.1 Output data
7.2 Calculation time steps
7.3 Input data
7.3.1 Lighting system data
7.3.2 Luminaire data
7.3.3 System design data
7.3.4 Operating conditions
7.3.5 Constants and physical data
7.4 Calculation procedure
7.4.1 Applicable time step
7.4.2 Operating conditions calculation
7.4.3 Energy calculation
7.5 Expenditure factors for lighting systems
8 Method 3 — Metered energy used for lighting
8.1 Output data
8.2 Calculation time steps
8.3 Input data
8.4 Calculation procedure of annual energy
9 Quality control
9.1 Method 1
9.2 Method 2
9.3 Method 3
10 Compliance check
10.1 General
10.2 Method 1
10.3 Method 2
10.4 Method 3
Annex A (informative) Input data sheet with default values and choices
Annex B (normative) Simplified method for installed power estimation
Annex C (normative) Assessment of the installed power for lighting systems in existing buildings
Annex D (normative) Occupancy estimation
Annex E (informative) Expenditure factors for lighting systems
Annex F (normative) Constant illuminance
Bibliography
NZS 20086:2022
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.