Title AS/NZS 2293.1:1998 Emergency evacuation lighting for buildings - System design, installation and operation Licensee Licensed to LUU MINH LUAN on 25 Feb 2002 Conditions of use This is a licensed electronic copy of a document where copyright is owned or managed by Standards Australia International Your licence is a single user licence and the document may not be stored, transferred or otherwise distributed on a network You may also make one paper copy of this document if required Web Check-up AS/NZS 2293.1:1998 Emergency evacuation lighting for buildings Building Code of Australia primary referenced Standard Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Australian/New Zealand Standard™ Part 1: System design, installation and operation AS/NZS 2293.1:1998 This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee LG/7, Emergency Lighting in Buildings It was approved on behalf of the Council of Standards Australia on 25 February 1998 and on behalf of the Council of Standards New Zealand on 27 February 1998 It was published on May 1998 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited The following interests are represented on Committee LG/1: The Association of Consulting Engineers Australia Australian Building Codes Board Australian Electrical and Electronic Manufacturers Association Australian Institute of Building Surveyors Building Control Commission, Victoria Building Industry Authority, New Zealand Department of Public Works and Housing, Queensland Department of Public Works and Services, New South Wales Illuminating Engineering Society of Australia and New Zealand National Electrical Contractors Association of Australia New South Wales Fire Brigades New Zealand Electrical Regulatory Authorities New Zealand Manufacturers Federation Property Council of Australia WorkCover New South Wales WORKS Australia Review of Standards To keep abreast of progress in industry, Joint Australian/ New Zealand Standards are subject to periodic review and are kept up to date by the issue of amendments or new editions as necessary It is important therefore that Standards users ensure that they are in possession of the latest edition, and any amendments thereto Full details of all Joint Standards and related publications will be found in the Standards Australia and Standards New Zealand Catalogue of Publications; this information is supplemented each month by the magazines ‘The Australian Standard’ and ‘Standards New Zealand’, which subscribing members receive, and which give details of new publications, new editions and amendments, and of withdrawn Standards Suggestions for improvements to Joint Standards, addressed to the head office of either Standards Australia or Standards New Zealand, are welcomed Notification of any inaccuracy or ambiguity found in a Joint Australian/New Zealand Standard should be made without delay in order that the matter may be investigated and appropriate action taken This Standard was issued in draft form for comment as DR 97362 AS/NZS 2293.1:1998 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Australian/New Zealand Standard™ Emergency evacuation lighting for buildings Part 1: System design, installation and operation Originated in Australia as part of AS 2293.1 — 1979 Final Australian edition AS 2293.1 — 1987 Originated in New Zealand as part of NZS 6742:1971 AS 2293.1 — 1987 and NZS 6742:1971 jointly revised, in part, and designated AS/NZS 2293.1:1995 Second edition 1998 Published jointly by: Standards Australia The Crescent, Homebush NSW 2140 Australia Standards New Zealand Level 10, Radio New Zealand House, 155 The Terrace, Wellington 6001 New Zealand ISBN 7337 1920 AS/NZS 2293.1:1998 PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee LG/7, Emergency Lighting in Buildings, to supersede AS/NZS 2293.1:1995 Emergency lighting for buildings, Part 1: System design, installation and operation The Standard sets out requirements for the design, installation and operation of emergency evacuation lighting systems for buildings The objective of these requirements is to ensure the provision of visual conditions that will alleviate panic and facilitate safe evacuation of the building occupants should this be necessary in the event of failure of the normal lighting The objective of this edition is to introduce a number of necessary changes, particularly those sought by the Australian Building Codes Board, with a view to the Standard being in a form that is suitable for reference in the Building Code of Australia Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Attention is drawn to the need for emergency evacuation lighting systems to be regularly maintained In this regard it should be noted that AS/NZS 2293.2* specifies the periodic inspection and maintenance checks that should be carried out to ensure that emergency evacuation lighting systems will continue to function effectively For direct lighting systems, two alternative methods are specified for deriving the required spacings for emergency luminaires, viz (a) A set of rules involving the classification of emergency luminaires according to their light output distribution (see AS/NZS 2293.3*) coupled with requirements relating the luminaire mounting height and maximum spacing (see Clauses 5.3.2.2 and 5.3.2.3, and Tables 5.1 to 5.5) (b) Calculations of the illuminance at floor level conducted in a specified manner (see Clause 5.3.2.4) There are differences in the way in which the methods described in Items (a) and (b) are specified for separate application in Australia and New Zealand, as explained below For Australian purposes, the spacing rules continue to be based on illuminance calculations in which only the luminous flux that reaches the floor directly from the emergency luminaires is taken into account For New Zealand purposes, similar spacing rules apply to those for use in Australia except that a separate luminaire classification is calculated for each room or space that is to be provided with emergency lighting For illuminance calculations, the luminous flux that reaches the floor both directly and indirectly (by reflection from room surfaces) is taken into account The above differences arise in part from different regulatory positions in Australia and New Zealand In particular, the different requirements arise from the following: (i) In New Zealand The underlying basis for the requirements is the provision of an illuminance of not less than lx at any point, as required by the New Zealand Building Code Both the direct and inter-reflected luminous flux components are taken into account (ii) In Australia The underlying basis for the requirements is the provision of an illuminance not less than 0.2 lx at the mid-point between adjacent luminaires Only the direct component of luminous flux is taken into account * AS/NZS 2293 Emergency evacuation lighting for buildings 2293.2 Part 2: Inspection and maintenance 2293.3 Part 3: Emergency luminaires and exit signs AS/NZS 2293.1:1998 The differences between the New Zealand and Australian positions are, in practice, not as large as they appear For a number of practical reasons, emergency lighting systems designed in accordance with the Australian spacing rules (i.e Tables 5.1 to 5.5) have, by measurement, been observed to provide illuminances comparable to those required by the New Zealand Building Code Differences also exist with respect to the installation of exit signs For Australia, the requirements of Clause 5.6 are similar to those of AS 2293.1 — 1987 but with some changes For New Zealand, Clause 5.7 requires compliance with Approved Document F8 of the New Zealand Building Code The abovementioned differences will be given further attention in a future revision of the Standard, having regard to any developments with respect to international recommendations covering this subject Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited The terms ‘normative’ and ‘informative’ have been used in this Standard to define the application of the appendix to which they apply A ‘normative’ appendix is an integral part of a Standard, whereas an ‘informative’ appendix is only for information and guidance © Copyright STANDARDS AUSTRALIA / STANDARDS NEW ZEALAND Users of Standards are reminded that copyright subsists in all Standards Australia and Standards New Zealand publications and software Except where the Copyright Act allows and except where provided for below no publications or software produced by Standards Australia or Standards New Zealand may be reproduced, stored in a retrieval system in any form or transmitted by any means without prior permission in writing from Standards Australia or Standards New Zealand Permission may be conditional on an appropriate royalty payment Australian requests for permission and information on commercial software royalties should be directed to the head office of Standards Australia New Zealand requests should be directed to Standards New Zealand Up to 10 percent of the technical content pages of a Standard may be copied for use exclusively in-house by purchasers of the Standard without payment of a royalty or advice to Standards Australia or Standards New Zealand Inclusion of copyright material in computer software programs is also permitted without royalty payment provided such programs are used exclusively in-house by the creators of the programs Care should be taken to ensure that material used is from the current edition of the Standard and that it is updated whenever the Standard is amended or revised The number and date of the Standard should therefore be clearly identified The use of material in print form or in computer software programs to be used commercially, with or without payment, or in commercial contracts is subject to the payment of a royalty This policy may be varied by Standards Australia or Standards New Zealand at any time AS/NZS 2293.1:1998 CONTENTS Page FOREWORD Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited SECTION SCOPE AND GENERAL 1.1 SCOPE AND APPLICATION 1.2 REFERENCED DOCUMENTS 1.3 DEFINITIONS 1.4 COMPLIANCE WITH OTHER STANDARDS 1.5 NEW DESIGNS AND INNOVATIONS 1.6 ALTERATIONS AND ADDITIONS SECTION SYSTEM PERFORMANCE, ARRANGEMENT AND CONTROL 2.1 SCOPE OF SECTION 2.2 OPERATION OF EMERGENCY LUMINAIRES AND EXIT SIGNS 2.3 DURATION OF OPERATION 2.4 ARRANGEMENT AND CONTROL 2.5 LABELLING OF DEVICES CONTROLLING THE OPERATION OF EMERGENCY LIGHTING 2.6 COMMISSIONING TEST 11 11 11 12 12 12 12 13 13 SECTION EMERGENCY POWER SUPPLIES FOR CENTRAL 3.1 SCOPE OF SECTION 3.2 EMERGENCY POWER SOURCE 3.3 BATTERIES AND THEIR INSTALLATION 3.4 BATTERY CHARGER ASSEMBLY 3.5 INVERTERS 3.6 ALARM SYSTEMS SYSTEMS 14 14 15 17 19 19 SECTION PROVISION OF DISCHARGE TEST FACILITIES 4.1 SCOPE OF SECTION 4.2 REQUIRED FACILITIES 4.3 MANUAL TESTING FACILITIES 4.4 AUTOMATIC TESTING FACILITIES 21 21 21 22 SECTION INSTALLATION OF EMERGENCY LUMINAIRES AND EXIT SIGNS 5.1 SCOPE OF SECTION 5.2 PROVISION OF EMERGENCY LUMINAIRES AND EXIT SIGNS 5.3 INSTALLATIONS EMPLOYING DIRECT LIGHTING 5.4 INSTALLATIONS EMPLOYING INDIRECT LIGHTING 5.5 LIGHTING OF STAIRWAYS 5.6 INSTALLATION OF EXIT SIGNS (IN AUSTRALIA) 5.7 INSTALLATION OF EXIT SIGNS (IN NEW ZEALAND) 5.8 IDENTIFICATION OF EMERGENCY LUMINAIRES 23 23 23 27 33 34 35 35 AS/NZS 2293.1:1998 Page SECTION INSTALLATION OF ELECTRICAL WIRING AND EQUIPMENT FOR CENTRAL SYSTEMS 6.1 SCOPE OF SECTION 6.2 CIRCUIT VOLTAGE DROP 6.3 PROTECTION AGAINST OVERCURRENT 6.4 PROTECTION OF THE ELECTRICAL INSTALLATION AGAINST FIRE 6.5 SEGREGATION OR IDENTIFICATION OF SUBMAINS 6.6 ARRANGEMENT OF FINAL SUBCIRCUITS 36 36 36 36 39 39 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited SECTION INFORMATION REQUIRED FOR MAINTAINING THE SYSTEM 7.1 SCOPE OF SECTION 41 7.2 OPERATING AND MAINTENANCE MANUAL 41 7.3 PROVISION FOR THE RECORDING OF MAINTENANCE 42 APPENDICES A REFERENCED DOCUMENTS B TERMINAL BOX FOR THE CONNECTION OF EMERGENCY LUMINAIRES AND EXIT SIGNS IN CENTRAL SYSTEMS C DIAGRAMS ILLUSTRATING CERTAIN REQUIREMENTS OR CHARACTERISTICS OF EMERGENCY LIGHTING SYSTEMS D FORMS OF CONSTRUCTION DEEMED TO PROVIDE A FIRE-RESISTANCE LEVEL OF 15/15/15 43 45 51 56 AS/NZS 2293.1:1998 FOREWORD The term ‘emergency lighting’ is commonly used to refer to the following types of lighting systems, one or more of which may be provided in a building to guard against the possible loss of the normal lighting: (a) Standby lighting Standby lighting systems generally provide relatively high lighting levels, which will permit normal activities to continue (b) Safety lighting Safety lighting systems are intended to ensure the safety of workers in proximity to hazardous equipment or processes (c) Evacuation or escape lighting Evacuation or escape lighting systems are intended to provide visual conditions that will permit the safe evacuation of people from buildings Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited This Standard is concerned only with emergency evacuation or escape lighting The emergency lighting required by this Standard may be provided either by central systems * or single-point systems *, or by a combination of the two Both systems have particular advantages and disadvantages; consequently, no recommendation is made as to which should be employed Attention is drawn to the fact that the reflectance of the main interior surfaces (especially walls and other vertical surfaces) will significantly influence the visual conditions provided by an emergency lighting installation It is therefore recommended that the colour of these surfaces be as light in tone as practicable It is recognized that the presence of smoke will have a detrimental effect on the visual conditions provided by emergency lighting The Committee is of the view that there is no practical way of ensuring that the lighting system will continue to be effective under smoke conditions, and that dependence must be placed on other measures such as building construction and ventilation to keep escape paths as free as possible from smoke There are developing techniques (e.g wayfinding systems) that, when applied to escape routes in addition to conventional emergency evacuation lighting, can enhance the visual guidance afforded during an emergency involving loss of the normal lighting These techniques are not covered in this Standard The nature of an emergency lighting system is such that one can never predict when it may be called upon to function Consequently, although it is important that the system is correctly installed and initially operates satisfactorily, it is equally important that regular inspection and maintenance procedures are instituted to ensure that the system will be in a state of readiness for operation at all times The necessary procedures are set out in AS/NZS 2293.2, Emergency evacuation lighting for buildings , Part 2: Inspection and maintenance * See relevant definitions in Clause 1.3 AS/NZS 2293.1:1998 STANDARDS AUSTRALIA / STANDARDS NEW ZEALAND Australian / New Zealand Standard Emergency evacuation lighting for buildings Part 1: System design, installation and operation S E C T I O N 1.1 S C O P E A N D G E N E R A L SCOPE AND APPLICATION Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 1.1.1 Scope This Standard specifies requirements for the equipment used and practices adopted in the provision of electric emergency evacuation lighting for buildings Requirements for emergency luminaires and exit signs are specified by reference to AS/NZS 2293.3 The objective of the Standard is to provide visual conditions which will alleviate panic and permit safe evacuation of the building occupants, should this be necessary, in the event of failure of the electrical supply to the normal lighting The Standard does not specify the types of buildings or the particular areas of buildings which should be provided with emergency evacuation lighting This will normally be a matter for determination in accordance with the relevant building regulations (See the Building Code of Australia or the New Zealand Building Code, as applicable.) There are some differences in the requirements specified for application in Australia and those for application in New Zealand Such differences are identified at the appropriate place by a qualification such as ‘In Australia’ or ‘In New Zealand’, as applicable NOTES: As it is never known when the emergency evacuation lighting may be called upon, it is essential that the system be regularly maintained AS/NZS 2293.2 sets out inspection and maintenance procedures which are intended to ensure that the installation will continue to comply with this Standard In Australia, requirements for the provision of emergency lighting in lift cars are given in AS 1735 In New Zealand, the comparable requirements are given in Approved Document D2 of the New Zealand Building Code AS 3009 specifies requirements for the emergency standby lighting necessary in hospitals for continued patient care and requires that emergency evacuation lighting be provided in accordance with the requirements of this Standard and relevant building regulations 1.1.2 Application This Standard will be referenced in the Building Code of Australia by way of BCA Amendment to be published by July 1998, thereby superseding the previous referenced edition, AS 2293.1 — 1987 This Standard may be called up by the Building Industry Authority in the Fire Safety sections of the Approved Documents which are expected to be re-published in 1999, thereby replacing AS/NZS 2293.1:1995 which is currently referenced by the New Zealand Building Code Handbook, Approved Document F6 as an Acceptable Solution to the New Zealand Building Code 1.2 REFERENCED DOCUMENTS Standard is given in Appendix A A list of the documents referred to in this COPYRIGHT 41 S E C T I O N I N F O R M A T I O N R E Q U I R E D M A I N T A I N I N G T H E S Y S T E M AS/NZS 2293.1:1998 F O R 7.1 SCOPE OF SECTION This Section sets out the information which shall be supplied to facilitate the correct operation and maintenance of emergency lighting systems NOTE: AS/NZS 2293.2 specifies the periodic inspection and maintenance procedures which should be conducted 7.2 OPERATING AND MAINTENANCE MANUAL Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 7.2.1 Provision of a manual An operating and maintenance manual in a durable hard-bound cover shall be provided for each emergency lighting installation and shall contain the following: (a) The data required to carry out the maintenance procedures specified in Section or Section of AS/NZS 2293.2, as appropriate (b) The information required by Clause 7.2.2 or Clause 7.2.3, as appropriate (c) The information listed in Appendix A of AS/NZS 2293.2, where applicable, for the guidance of maintenance personnel NOTE: It is recommended that the operating and maintenance manual be printed on A4 paper (see AS 1612) The operating and maintenance manual shall be kept on the premises at all times, or at such other location as may be approved by the regulatory authority 7.2.2 Information relating to central systems For central systems, the operating and maintenance manual shall contain the following information: (a) Battery data Battery voltage, number and ampere-hour rating of cells (b) Battery charger data Basic connection diagram; detailed description of operation; float and boost charge voltage settings and available ranges together with data on appropriate temperature compensation; rated maximum charging current; operation and adjustment procedures; recharge time at available boost charge voltages and currents; alarm settings; and a list of recommended spares (c) Inverter data Basic connection diagram; detailed description of operation; rated d.c input voltage range; rated a.c output voltage and specified tolerances; rated maximum output current; operation and maintenance procedures; alarm settings; and a list of recommended spares (d) Installation data As-installed plans showing the location of all emergency lighting equipment including emergency luminaires and exit signs, their supply circuits, all submains cable routes, and luminaire/exit sign and lamp details (see also Clause 7.2.5) Each emergency luminaire and exit sign shown shall be given a separate designation for identification purposes and a legend shall be included to identify the type of luminaire or exit sign Alternatively, a detailed schedule listing the required information may be supplied in lieu of installation plans NOTE: Attention is drawn to AS 3702 which sets out a coordinated system for the designation of electrical equipment in diagrams, charts, tables and the like (e) Wiring diagrams As-installed circuit diagrams covering the entire emergency lighting installation external to the battery charger and inverter panels These diagrams shall show cable sizes, circuit-breaker or fuse ratings, relay or contactor ratings and the total emergency lighting maximum demand COPYRIGHT AS/NZS 2293.1:1998 (f) 42 Maintenance schedule A detailed maintenance schedule setting out step by step the tests required by Section of AS/NZS 2293.2 at each of the nominated intervals Reference shall be made to the appropriate part of the manual for the data required during each test 7.2.3 Information relating to single-point systems For single-point systems, the operating and maintenance manual shall contain the following information: (a) Installation data As-installed plans showing the location of all self-contained emergency luminaires and exit signs, and their supply circuits (see also Clause 7.2.5) Each emergency luminaire and exit sign shown shall be given a separate number for identification purposes and a legend shall be included to identify the type of luminaire or exit sign Alternatively, a detailed schedule listing the required information may be supplied in lieu of installation plans Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited NOTE: Attention is drawn to AS 3702 which sets out a coordinated system for the designation of electrical equipment in diagrams, charts, tables and the like (b) Connection diagram As-installed circuit diagrams showing the typical external connections for each type of self-contained emergency luminaire and exit sign (c) Luminaire data Full technical data including lamp information for each type of self-contained emergency luminaire and exit sign (d) Maintenance schedule A detailed maintenance schedule setting out step by step the tests required by Section of AS/NZS 2293.2 at each of the nominated intervals Reference shall be made to the appropriate part of the manual for the data required for each test 7.2.4 Additional information relating to automatic discharge testing systems Where facilities are provided for automatic discharge testing, the operating and maintenance manual shall contain the following information: (a) The location of any control and indicating panels, if applicable (b) Details of the operation of the system, including the meanings given to the indications of system status that are provided (c) Where a centralized system of control is used, identification of the association between individual emergency luminaires and exit signs and the controllers to which they are connected 7.2.5 Additional information relating to indirect lighting systems The reflectances of the major reflecting surfaces (e.g walls, ceilings) on which the design of the indirect lighting system is based shall be recorded for reference in subsequent maintenance checks in accordance with AS/NZS 2293.2 7.3 PROVISION FOR THE RECORDING OF MAINTENANCE The installer of the emergency lighting system shall provide a logbook in a durable hard-bound cover, or an alternative system approved by the regulatory authority, for the recording of maintenance information Provision shall be made to enter— (a) all details which are required to be logged in accordance with Section or Section of AS/NZS 2293.2, as appropriate; (b) any corrective action taken; and (c) the names of persons responsible for carrying out the maintenance work and the date the work was completed Where automatic discharge test facilities are incorporated, provision shall be made for the recording of the expected date of the next discharge test The logbook or alternative records system shall be kept on the premises at all times, or at such other location as may be approved by the regulatory authority COPYRIGHT 43 APPENDIX AS/NZS 2293.1:1998 A REFERENCED DOCUMENTS Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited (Normative) AS 1319 Safety signs for the occupational environment 1612 Paper sizes 1680 1680.1 1680.3 Interior lighting Part 1: General principles and recommendations Part 3: Measurement, calculation and presentation of photometric data 1735 Lifts, escalators and moving walks (known as the SAA Lift Code) 1852 1852.845 International Electrotechnical Vocabulary Part 845: Lighting 2005 2005.10 Low voltage fuses—Fuses with enclosed fuse-links Part 10: General requirements 2118 Automatic fire sprinkler systems (known as the SAA Code for Automatic Fire Sprinkler Systems) 2191 Stationary batteries of the lead-acid Plante positive plate type 2676 Guide to the installation, maintenance, testing and replacement of secondary batteries in buildings Part 1: Vented cells Part 2: Sealed cells 2676.1 2676.2 3000 Electrical installations — Buildings, structures and premises (known as the SAA Wiring Rules) 3002 Electrical installations—Shows and carnivals 3009 Electrical installations—Emergency power supplies in hospitals 3011 3011.1 3011.2 Electrical installations—Secondary batteries installed in buildings Part 1: Vented cells Part 2: Sealed cells 3665 Simplified definitions of lighting terms and quantities 3702 Item designation in electrotechnology 3731 3731.1 3731.2 Stationary batteries — Nickel-cadmium Part 1: Vented type Part 2: Valve-regulated type 4029 4029.1 4029.2 4029.3 Stationary batteries—Lead-acid Part 1: Vented type Part 2: Valve-regulated sealed type Part 3: Pure lead positive pasted plate type 4044 Battery chargers for stationary batteries NZS 4541 6703 Automatic fire sprinkler systems Code of practice for interior lighting design COPYRIGHT AS/NZS 2293.1:1998 AS/NZS 2293 2293.2 2293.3 Emergency evacuation lighting for buildings Part 2: Inspection and maintenance Part 3: Emergency luminaires and exit signs 3013 Electrical installations—Classification of the fire and mechanical performance of wiring systems 3100 Approval and equipment IEC 60051 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 44 test specification—General requirements for electrical 60051-1 60051-2 60051-9 Direct acting indicating analogue electrical measuring instruments and their accessories Part 1: Definitions and general requirements common to all parts Part 2: Special requirements for ammeters and voltmeters Part 9: Recommended test methods ISO 3864 Safety colours and safety signs ABCB BCA Building Code of Australia* NZ New Zealand Building Code† — Approved Document D2, Mechanical installations for access — Approved Document F6, Lighting for emergency — Approved Document F8, Signs — Approved Document G9, Electricity The Electricity Regulations‡ * Published by Australian Building Codes Board † Published by Building Industry Authority, New Zealand ‡ Published by Ministry of Commerce, New Zealand COPYRIGHT 45 AS/NZS 2293.1:1998 APPENDIX B TERMINAL BOX FOR THE CONNECTION OF EMERGENCY LUMINAIRES AND EXIT SIGNS IN CENTRAL SYSTEMS (Normative) B1 SCOPE This Appendix specifies requirements for a terminal box for the connection of emergency luminaires and exit signs in final subcircuits of central systems which require protection against exposure to fire Clause 6.4.2.2(b) requires that such terminal boxes provide Class WS1X protection in accordance with AS 3013 This Appendix sets out the materials, construction, connection and installation details for a terminal box which, on the basis of previous testing*, is deemed to provide the specified protection Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited B2 MATERIALS AND CONSTRUCTION The terminal box shall be of either— (a) heavy duty cast steel with a cast steel lid, the thickness of any part of the box being not less than 3.2 mm; or (b) folded sheet steel having continuous welded edges or overlapped and spot welded flaps, and an overlapping ‘shoe box’ type lid, the thickness of any part of the box being not less than 1.2 mm B3 CONNECTION DETAILS Connections within the terminal box shall be made via fuses complying with the following: (a) All unearthed load circuit conductors shall be fused with Type ‘gG’ fuse-links complying with AS 2005.10 (b) Each fuse-link shall be housed in a ceramic fuse-carrier and base Cable entries to the terminal box shall be made by means of close-fitting metallic bushes or glands For mineral-insulated, metal-sheathed cables, the cable seals shall be located within the terminal box The sealing compound used shall be of a type which remains non-conductive, even though it may fail as a moisture seal under high temperature conditions Conductor tails shall be insulated over their entire length with natural silicone rubber sleeving, having a hardness of 74 ±5 (Durometer A) and a density of 1620 ±2 kg/m NOTE: Figures B1 and B2 illustrate typical arrangements of the terminal box for different wiring systems B4 INSTALLATION DETAILS The terminal box shall be installed in a manner consistent with the principles embodied in the examples illustrated in Figures B3 to B7, applicable to the luminaire arrangement and type of wiring system employed * A description of the tests is provided in NBTC Technical Record 452, ‘The fire performance of wiring for emergency lighting systems’ National Building Technology Centre, P.O Box 30, Chatswood, N.S.W 2067 COPYRIGHT Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited AS/NZS 2293.1:1998 46 Item Description Surface-installed cable Conductor tails, insulated or sleeved with silicone rubber Metallic cable gland or bush Metal terminal box Ceramic fuse base and carrier with Type ‘gG’ fuse-link complying with AS 2005.10 Surface conduit to luminaire† Wiring to luminaire† — any allowed by AS 3000 or Approved Document G9 of the New Zealand Building Code † Not to exceed m unless wiring is of a type which will provide Class WS1X protection in accordance with AS 3013 FIGURE B1 TYPICAL ARRANGEMENT OF METAL TERMINAL BOX FOR USE WITH SURFACE-INSTALLED CABLE AND SURFACE-MOUNTED LUMINAIRE COPYRIGHT Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 47 Item AS/NZS 2293.1:1998 Description 0.6/1 kV PVC insulated building wires V75, sleeved with silicone rubber Ceramic fuse base and carrier with Type ‘gG’ fuse-link complying with AS 2005.10 Wire entry hole in base of metal terminal box Embedded conduit junction box Embedded conduit Metal terminal box Wiring to luminaire* — any allowed by AS 3000 or Approved Document G9 of the New Zealand Building Code Surface conduit to luminaire* * Not to exceed m unless wiring is of a type which will provide Class WS1X protection in accordance with AS 3013 FIGURE B2 TYPICAL ARRANGEMENT OF METAL TERMINAL BOX FOR USE WITH EMBEDDED CONDUIT AND SURFACE-MOUNTED LUMINAIRE COPYRIGHT AS/NZS 2293.1:1998 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited FIGURE B3 48 TYPICAL LAYOUT OF EMBEDDED CONDUIT, SURFACE-MOUNTED TERMINAL BOX AND SURFACE MOUNTED LUMINAIRE FIGURE B4 TYPICAL LAYOUT OF SURFACE INSTALLED CABLE, SURFACEMOUNTED TERMINAL BOX AND SURFACE-MOUNTED LUMINAIRE FIGURE B5 TYPICAL LAYOUT OF TERMINAL BOX AND RECESSED LUMINAIRE COPYRIGHT 49 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited FIGURE B6 FIGURE B7 AS/NZS 2293.1:1998 TYPICAL LAYOUT OF EMBEDDED TERMINAL BOX AND SURFACE-MOUNTED LUMINAIRE TYPICAL LAYOUT OF TERMINAL BOX MOUNTED INSIDE A SURFACE-MOUNTED LUMINAIRE COPYRIGHT AS/NZS 2293.1:1998 50 APPENDIX C DIAGRAMS ILLUSTRATING CERTAIN REQUIREMENTS OR CHARACTERISTICS OF EMERGENCY LIGHTING SYSTEMS Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited (Informative) FIGURE C1 TYPICAL WIRING ARRANGEMENT OF A SWITCHED, MAINTAINED, SELF-CONTAINED EMERGENCY LUMINAIRE WITH A MANUAL TEST FACILITY IN THE MONITORED SUPPLY FIGURE C2 ALTERNATIVE WIRING ARRANGEMENT OF A SWITCHED, MAINTAINED, SELF-CONTAINED EMERGENCY LUMINAIRE WITH A MANUAL TEST FACILITY IN THE MONITORED SUPPLY FIGURE C3 TYPICAL WIRING ARRANGEMENT OF AN UNSWITCHED, MAINTAINED (WITH CHANGEOVER) OR NON-MAINTAINED, SELF-CONTAINED EMERGENCY LUMINAIRE WITH A MANUAL TEST FACILITY IN THE MONITORED SUPPLY COPYRIGHT Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 51 AS/NZS 2293.1:1998 NOTE: The emergency lighting system is shown in the operating condition, i.e the normal lighting supply is not available FIGURE C4 ILLUSTRATION OF SENSING AND CONTROL OF A CENTRAL EMERGENCY LIGHTING SYSTEM NOTE: See Clauses 5.3.1 and 5.3.2 FIGURE C5 ILLUSTRATION OF REQUIREMENTS FOR THE SPACING OF EMERGENCY LUMINAIRES IN CORRIDORS COPYRIGHT AS/NZS 2293.1:1998 52 NOTE: An emergency luminaire is to be located within m of the intersection of centre-lines at the change in direction (i.e position A) except where a straight line between emergency luminaires on either side of the change of direction (i.e between B and C) does not intersect the wall of the corridor (see Clause 5.3.1) and the spacing between these luminaires does not exceed the maximum value determined from Clause 5.3.2 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited FIGURE C6 ILLUSTRATION OF THE LOCATION OF EMERGENCY LUMINAIRES AT A CHANGE OF DIRECTION NOTE: Only one emergency luminaire need be installed at C, in lieu of separate emergency luminaires at A and B, if S is not greater than half the maximum spacing permitted by Clause 5.3.2, but in any case not more than m (see Clause 5.3.1) FIGURE C7 ILLUSTRATION OF REQUIREMENTS FOR THE LOCATION OF EMERGENCY LUMINAIRES WHERE AN INTERSECTION OF CORRIDORS AND A CHANGE OF DIRECTION OCCUR IN CLOSE PROXIMITY COPYRIGHT 53 AS/NZS 2293.1:1998 NOTE: The horizontal distance, S, between successive emergency luminaires should not exceed 0.8 times the maximum spacing permitted by Clause 5.3.2 for mounting height H See example in Clause 5.5.2 for the special case of Class C and D luminaires in enclosed stairwells Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited FIGURE C8 ILLUSTRATION OF REQUIREMENTS FOR THE LIGHTING OF STAIRWAYS NOTE: The intermediate landing need not receive direct light provided that L does not exceed m (see Clause 5.5.2) FIGURE C9 ILLUSTRATION OF REQUIREMENTS FOR THE LIGHTING OF AN INTERMEDIATE LANDING IN AN ENCLOSED STAIRWELL COPYRIGHT AS/NZS 2293.1:1998 54 NOTE: See Clauses 6.4.2.2 and 6.4.3 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited FIGURE C10 ILLUSTRATION OF EXEMPTION FROM NEED FOR PROTECTION AGAINST EXPOSURE TO FIRE FOR SECTIONS OF FINAL SUBCIRCUITS COPYRIGHT 55 APPENDIX AS/NZS 2293.1:1998 D FORMS OF CONSTRUCTION DEEMED TO PROVIDE A FIRE-RESISTANCE LEVEL* OF 15/15/15 (Normative) The following forms of construction, and openings therein, shall be deemed to comply with the requirement of Clause 3.2.2(a) for a fire-resistance level* (FRL) of 15/15/15 from the building to the room or enclosure housing the emergency power source: Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited (a) Walls and ceilings of timber or metal framing lined on the side from which the fire will approach the room or enclosure from the building by— (i) 13 mm plasterboard; (ii) 12 mm fibre-reinforced silica board; (iii) 12 mm mesh-reinforced fibrous plaster in which the mesh is 13 mm × 13 mm × 0.7 mm welded wire located not more than mm from the exposed face; or (iv) any other material not less fire-protective than 13 mm plasterboard In each case the material shall be of fire-protective grade and fixed in accordance with the normal trade practice applicable to the fixing of the material as a fire-protective covering (b) Solid core doors not less than 35 mm thick and fitted with self-closing devices (c) Ducts or vents enclosed by the construction described in Item (a), where such ducts or vents enter or pass through any space not otherwise separated from the building by walls and ceilings complying with Item (a) * In New Zealand, the term ‘fire-resistance rating’ has the same meaning as the term ‘fire-resistance level’ COPYRIGHT ... taken into account * AS/ NZS 2293 Emergency evacuation lighting for buildings 2293.2 Part 2: Inspection and maintenance 2293.3 Part 3: Emergency luminaires and exit signs AS/ NZS 2293.1:1998 The... AS/ NZS 2293.1:1998 PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee LG/7, Emergency Lighting in Buildings, to supersede AS/ NZS 2293.1:1995 Emergency. .. 1000 1.3.11 Emergency evacuation lighting (emergency lighting) lighting which is provided to ensure that the means of escape can be safely and effectively used Emergency evacuation lighting systems