AS NZS 2293 2 1995 emergency evacuation lighting for buildin

AS/NZS 2293.2:1995Australian/New Zealand Standard Emergency evacuation lighting for buildings Part 2: Inspection and maintenance... This Joint Australian/New Zealand Standard was prepare

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AS/NZS 2293.2:1995 Emergency evacuation lighting for buildings - Inspection and

maintenance

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AS/NZS 2293.2:1995

Australian/New Zealand Standard

Emergency evacuation lighting for buildings

Part 2: Inspection and maintenance

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 31 May 1995 and on behalf of the Council of Standards New Zealand on 29 May 1995 It was published on 5 September 1995

The following interests are represented on Committee LG/7:

Administrative Services Department, Queensland Association of Consulting Engineers Australia Australian Building Codes Board

Australian Construction Services — Department of Administrative Services Australian Electrical and Electronic Manufacturers Association

Australian Institute of Building Surveyors Building Industry Authority, New Zealand Building Management Authority of Western Australia Building Owners and Managers Association of Australia Department of Housing and Urban Development, South Australia Department of Planning and Development, Victoria

Electricity Supply Association of Australia Illuminating Engineering Society of Australia and New Zealand National Electrical Contractors Association of Australia

New South Wales Fire Brigades New South Wales Public Works New Zealand Electrical Regulatory Authorities New Zealand Manufacturers Federation WorkCover Authority of New South Wales

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 92201.

AS/NZS 2293.2:1995

Australian/New Zealand Standard

Emergency evacuation lighting for buildings

Part 2: Inspection and maintenance

PUBLISHED JOINTLY BY:

STANDARDS AUSTRALIA

1 The Crescent, Homebush NSW 2140 Australia STANDARDS NEW ZEALAND Level 10, Radio New Zealand House,

155 The Terrace, Wellington 6001 New Zealand

ISBN 0 7262 9887 5

This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee LG/7, Emergency Lighting in Buildings, to supersede AS 2293.2 — 1987* and, in part, NZS 6742:1971†

The Standard sets out requirements for the periodic inspection and maintenance procedures which should be instituted for emergency evacuation lighting systems The objective of these requirements is to ensure that such lighting systems will be in a state of readiness for operation at all times

The changes in this edition are primarily a consequence of alterations made in AS/NZS 2293.1—1995‡ The following changes of significance have been introduced:

which are provided with automatic discharge test facilities (see Clauses 2.2.7.2, 2.3.7.2 and 3.2.2.2)

(b) A requirement has been added for a visual check on an annual basis to ensure that emergency luminaires and exit signs operate in correct relationship to the normal lighting in the designated area (see Clauses 2.3.6(c) and 3.3(c))

emergency luminaires of the directional beam type (see Clauses 2.2.6 and 3.2.3)

measurement of the maximum voltage during boost charging, where applicable (see Clause 2.3.7.1)

Attention is drawn to the guidance given in AS 2676.1§ and AS 2676.2§ in relation to the maintenance of batteries used in central systems Provision has been made for the maintenance of battery systems which is carried out in accordance with AS 2676.1 or

AS 2676.2 to be accepted in lieu of the comparable requirements of this Standard (see Clause 2.1)

The term ‘informative’ has been used in this Standard to define the application of the appendix to which it applies An ‘informative’ appendix is only for information and guidance

* AS 2293.2 — 1987 Emergency evacuation lighting in buildings

Part 2: Inspection and maintenance

‡ AS/NZS 2293.1 — 1995 Emergency evacuation lighting for buildings

Part 1: System design, installation and operation

buildings

3 AS / NZS 2293.2:1995

CONTENTS

Page

SECTION 1 SCOPE AND GENERAL

1.1 SCOPE 4

1.2 REFERENCED DOCUMENTS 4

1.3 DEFINITIONS 4

1.4 GENERAL REQUIREMENTS 4

SECTION 2 INSPECTION AND MAINTENANCE PROCEDURES FOR CENTRAL SYSTEMS 2.1 REQUIRED PROCEDURES 6

2.2 SIX-MONTHLY PROCEDURES 6

2.3 TWELVE-MONTHLY PROCEDURES 8

SECTION 3 INSPECTION AND MAINTENANCE PROCEDURES FOR SINGLE-POINT SYSTEMS 3.1 REQUIRED PROCEDURES 10

3.2 SIX-MONTHLY PROCEDURES 10

3.3 TWELVE-MONTHLY PROCEDURES 11

3.4 BATTERY REPLACEMENT 11

APPENDICES A INFORMATION TO FACILITATE THE MAINTENANCE OF BATTERIES AND BATTERY CHARGERS 12

B CLEANING OF EMERGENCY LUMINAIRES AND EXIT SIGNS 13

Originated in Australia as AS 2293.2 — 1979.

Previous edition 1987.

Originated in New Zealand as part of NZS 6742:1971.

AS 2293.2 — 1987 and part of NZS 6742:1971 jointly revised and designated AS/NZS 2293.2:1995.

Incorporating:

Amdt 1—1998

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STANDARDS AUSTRALIA / STANDARDS NEW ZEALAND

Australian / New Zealand Standard Emergency evacuation lighting for buildings

Part 2: Inspection and maintenance

S E C T I O N 1 S C O P E A N D G E N E R A L

1.1 SCOPE This Standard sets out the periodic inspection and maintenance procedures which are necessary to ensure that emergency evacuation lighting systems will be in a state

of readiness for operation at all times It applies to central and single-point emergency lighting systems, as defined in AS/NZS 2293.1

1.2 REFERENCED DOCUMENTS The following documents are referred to in this Standard:

AS

1042 Direct-acting indicating electrical measuring instruments and their accessories

batteries in buildings

2676.2 Part 2: Sealed cells

AS/NZS

2293.1 Part 1: System design, installation and operation

1.3 DEFINITIONS For the purpose of this Standard, the definitions given in AS/NZS 2293.1 apply

1.4.1 Maintenance of the installation Emergency evacuation lighting systems shall be inspected and maintained in accordance with the relevant procedures specified in this Standard The inspection and maintenance procedures shall be carried out only by persons having qualifications and experience suitable for the work on which they are engaged

NOTE: Section 7 of AS/NZS 2293.1 specifies the provision of an operating and maintenance manual to assist in conducting the inspection and maintenance checks required by this Standard

It requires that the information listed in Appendix A of this Standard be included in the manual for the guidance of maintenance personnel

1.4.2 Maintenance records A logbook in a durable hard-bound cover, or an alternative system approved by the regulatory authority, shall be provided for the recording of maintenance information The following details shall be entered:

(a) All details which are required to be logged in accordance with Section 2 or Section 3,

as appropriate

(b) Any corrective action taken

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5 AS / NZS 2293.2:1995

(c) The names of persons responsible for carrying out the maintenance work and the date the work was completed

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

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S E C T I O N 2 I N S P E C T I O N A N D

M A I N T E N A N C E P R O C E D U R E S

F O R C E N T R A L S Y S T E M S

2.1 REQUIRED PROCEDURES The inspection and maintenance procedures specified

in Clauses 2.2 and 2.3 shall be carried out at the intervals specified Corrective action shall

be undertaken, as necessary, to ensure that the emergency lighting system will continue to function effectively Details of such actions shall be recorded in the logbook

Whenever data are recorded for individual cells of the battery, cell numbers shall be designated in sequence, commencing from the positive end

Maintenance of battery systems that is carried out in accordance with the procedures of

AS 2676.1 or AS 2676.2, as applicable, shall be deemed to comply with the appropriate clauses in this Section

2.2 SIX-MONTHLY PROCEDURES

2.2.1 General The procedures specified in Clauses 2.2.2 to 2.2.7 inclusive shall be carried out at intervals of not greater than six months

2.2.2 Batteries The following checks shall be made on batteries of the type which require maintenance of the electrolyte above a specified level:

(a) Check the electrolyte level in each cell and, with water complying with AS 2668, top

up those cells that are markedly lower than the general level The electrolyte level shall

be checked and topped up, if necessary, before the battery is boost-charged (if this is required)

NOTE: During boost-charging, the electrolyte level rises owing to the release of gas and increase in temperature Consequently, a false level will be indicated if the check is made within a period of 1 h following a boost charge

(b) Inspect all cell containers for electrolyte leakage Neutralize and mop up any spilt liquid as necessary (see Paragraph A4 of Appendix A)

For all types of batteries, inspect cell connections for signs of corrosion and tighten any loose joints Treat all exposed metal surfaces with a coating of petroleum jelly or other suitable battery terminal preservative

2.2.3 Battery chargers The following checks shall be made on battery chargers:

(a) Visually inspect all components for any condition which could cause a malfunction Pay particular attention to indicating lamps, relays and contactors

(b) Remove any dust or dirt that may have accumulated within the cubicle

maintenance manual to ensure that, when corrected for temperature, the reading lies within the normal float voltage limits

(d) Check all connections for tightness

2.2.4 Central inverters The following checks shall be made on central inverters: (a) Visually inspect components for any condition which could cause a malfunction (b) Note d.c input voltage and current, and record in the logbook Check the readings against data in the operating and maintenance manual to ensure that they are within the tolerance limits of the inverter

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7 AS / NZS 2293.2:1995

(c) Note a.c output voltage and current, and record in the logbook Check the readings against data in the operating and maintenance manual to ensure that they are within the output tolerances given for the inverter

NOTE: This procedure may be carried out in conjunction with the system check of Clause 2.2.7

2.2.5 Distribution and control equipment The following checks shall be made on distribution and control equipment:

(a) Visually inspect relays, contactors, circuit-breakers and fuses for any condition that could cause a malfunction

(b) Check all connections for tightness

(c) Remove any dust or dirt that may have accumulated within distribution and control equipment enclosures

(d) Isolate the coil circuits of all sensing relays or contactors from the a.c supply and observe correct operation to bring on the emergency lighting

NOTE: This procedure may be carried out in conjunction with the system check of Clause 2.2.7

2.2.6 Emergency luminaires and exit signs All emergency luminaires and exit signs shall

be checked to ensure that they function satisfactorily Any defective lamps shall be replaced

NOTES:

1 This procedure may be carried out in conjunction with the system check of Clause 2.2.7

2 For emergency luminaires and exit signs with tubular fluorescent lamps, it is recommended that the lamps be replaced if they exhibit excessive end-blackening, even when the lamps still operate

For indirect lighting systems, carry out the following checks:

(a) Check that the finish of the major reflecting surfaces (e.g walls, ceilings) have reflectances of not less than those on which the design of the system was based

(b) Check that emergency luminaires of the directional beam type, if used, are aimed in such a manner that the beam will not be directed into the eyes of persons moving through the designated area

2.2.7 System check

2.2.7.1 Manual discharge test facilities Where manual discharge test facilities are provided, the following procedure shall be carried out to check the operation of the emergency lighting system:

(a) Turn the battery charger off, simulate a mains failure and carry out a partial discharge test at 100 percent of the installed emergency lighting load Allow the test to continue until the operation of all emergency luminaires and exit signs has been checked, as required by Clause 2.2.6

During the discharge test, check that the charger-failure alarm operates satisfactorily (b) Restore the system to normal operation, turn the battery charger on and recharge the battery

2.2.7.2 Automatic discharge test facilities Where automatic discharge test facilities are provided, a visual check shall be made of the operational status of all emergency luminaires and exit signs by means of the indications given at the controller or associated indicator panel

Those units which failed the previous discharge test shall be either repaired and restored to normal condition or replaced

NOTE: A system check may also be carried out at any time using the manual initiation facility, where provided in accordance with Section 4 of AS/NZS 2293.1

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