as 1670.1:2015 what has changed - fpa australia · ncc/bca and this makes it the key document in...

AS 1670.1:2015 – What has changed

Prepared by Keith Shinn

Section 1

Scope and General

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All slides are Copyright of FPA Australia

1.2 Application This standard requires that detection be provided throughout all areas of the building; however where systems are installed to solely meet the requirements of the NCC, refer to the NCC for areas to be protected.

A new work item is underway to produce a Handbookproviding guidance on systems installed for non NCC purposes

Scope and General

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1.3 Normative references have been expanded to:

• include additional AS/ISO standards which have been published since 2004

• flag the withdrawal in 24 months of legacy AS and EN standards which are currently referenced in this standard

Scope and General

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A number of ISO Standards have been adopted since AS 1670.1:2004 was published and these are now referenced:

• AS 7240.3 – Audible alarm devices

• AS 7240.8 – CO fire detector with heat sensor

• AS 7240.10 – Point type flame detector

• AS 7240.11 – Manual call points

• AS 7240.12 – Line type beam smoke detector

• AS 7240.15 – Multisensor smoke detector

• AS 7240.20 – Aspirating smoke detectors (ASD)

• AS 7240.21 – Routing equipment (ASE)

• AS 7240.22 – Smoke detection for ducts

New Normative References

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• AS 7240.23 – Visual alarm devices

• AS 7240.24 – Fire Alarm Loudspeakers

• AS 7240.25 – Components using radio transmission

• AS 7240.27 – Point type fire detectors using smoke,

CO and heat

• AS 4428.16 – Emergency warning CIE

• AS 7240.13 – Compatibility testing

• AS 4428.3-2010 – Fire Brigade Panel.

• IEC 60331-25 Procedures and requirements—

fire rated optical fibre cables

New Normative References cont’d

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Standards to be excluded from the next revision of AS 1670.1 in 2018 are:

• AS 1603.1 – Heat detectors• AS 1603.2 – Smoke detectors• AS 1603.5 – Manual call points• EN 54-10 – Flame detectors - point type• EN 54-11 – Manual call points• AS 1603.7 – Beam detectors• AS 1603.8 – Multipoint aspirated smoke det.

Normative References cont’d

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Standards to be excluded cont’d:

• AS 1603.13 – Duct sampling units

• AS 1603.14 – Point type CO detectors

• AS 4428.1 – Fire indicator panels

• AS 4428.5 – Power supply units

• AS 4428.9 – Wire free alarm circuits

Normative References cont’d

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• AS1670.1 is a primary reference standard in the NCC/BCA and this makes it the key document in determining fire detection requirements.

• If equipment Standards are not referenced in AS1670.1 they can only be used for alternative solutions

• The NCC is now revised every 3 years and the next revision is planned for 2019

• To conform with the NCC timetable AS 1670.1:2015 is intended to be revised by 2018 to allow it to be referenced in the NCC 2019

How do normative references work?

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1.4 Definitions

Definitions are intended to bring clarity to a standard.They define precisely what is meant by a term and are especially valuable where new terms are introduced.

This standard has 77 definitions compared to the 2004 edition which had 24

1.4 Definitions

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1.4.7 Alarm Delay Facility (ADF)

A part or configuration of FDCIE used to reduce nuisance general alarms by providing a local warning which if not cleared after a defined delay, will escalate to a general alarm. If fire is detected by some other means, consisting, at least of heat detection, then it will escalate to a general alarm

New Definitions

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1.4.23 Fire Detection and Alarm System (FDAS)

Equipment including control and indicating equipment, which when arranged in a specified configuration, is capable of detecting, indicating a fire and giving signals for appropriate action

1.4.40 Main FDCIE

An FDCIE that has been designated to monitor and indicate at least the general status of other FDCIE

1.4.28 Fire detection control and indicating equipment (FDCIE)

Equipment complying with the requirements of AS 4428.1 or AS 7240.2.

New Definitions

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1.4.26 Fire Brigade Panel (FBP) – Now required at

all DBEP

For the purpose of this Standard a fire brigade panel is defined as any of the following:

• A firefighter’s facility complying with AS 4428.1.

• An f.b.p. complying with AS 4428.3.

• FDCIE individual zone controls and indicators

New Definitions

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1.4.11 Circulation space

Areas within a building that are used for pedestrian travel which is a passage way, corridor, hallway, stairway, lobby, atrium, an open plan office, enclosed walkway and mall, shop, areas in a room that provides an exit path from another room, paths of travel to exits in loading docks, designated paths of travel leading to exits from car spaces in car parks, and other paths of travel to exits.

New Definitions

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1.4.12 Combination Detector

A fire detector incorporating within a single housing more than one fire sensor, each complying with a separate Standard listed in normative references.

1.4.50 Multisensor Detector

A fire detector, incorporating sensors in one mechanical housing that responds to more than one physical phenomena of fire.

New Definitions

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1.4.72 Transmission Path

Connection, external to the cabinet of the control and indicating equipment for the transmission of information and/or power between—

(a) FDCIE or EWCIE and other components of an FDAS; and/or

(b) Parts of control and indicating equipment contained in different cabinets.

1.4.73 Transmission path fault

A condition in the transmission path that prevents the correct transfer of signal, data or power.

New Definitions

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1.4.10 Baseline Data

Data derived from the approved design and commissioning which serve as a basis for subsequent comparison with the data derived from inspection, test and survey

New Definitions

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Section 2

System Configuration

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2.1 Equipment

2.1.1 General

FDAS equipment shall comply with at least one of the equipment Standards listed in the normative references in Clause 1.3 and shall be installed in the format detailed in the product conformity documentation, including any limitations of use identified.

Aligning with overseas practices


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2.1.2 Components

The range of equipment is expanded by the inclusion of several additional AS7240 standards

Clarifies that alarm mimics must comply with the same requirements as FDCIE


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2.1.3 Additional equipment permits FDCIE to beconnected to and controlled by BMS, Graphic Systems or other systems but only when strict requirements are met: (a)The operation of the FDAS shall not be reliant on the additional equipment.

(b) Failure of the additional equipment shall not adversely affect the correct operation of the FDAS.

(c) All connections to additional equipment shall comply with AS/CA S009

Additional Equipment

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• 2.1.3 Additional equipment cont’d (d) Connectability of the additional equipment

with the FDCIE has been assessed.Note AS 7240.13 may be used as a guide to confirm the

compatibility of components

(e) Additional equipment shall not have remote access to Access Level 3 and Access Level 4 functions as defined in AS 7240.2 without manually enabling Access Level 3 and Access Level 4 directly at the FDCIE

Additional Equipment

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2.2 .1 Designated Building Entry Point

A DBEP shall be selected for each building and identified with an external alarm indication in accordance with Clause 3.8.

At the DBEP the source of an alarm shall be indicated on a Fire Brigade Panel (FBP) as defined in Clause 1.4.26. The FBP shall be installed in accordance with Clause 3.9.

Designated Entry Points

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2.2.2 Designated Site Entry PointWhere multiple buildings are monitored, at least one DSEP shall be provided on a site unless each building is individually identified at the fire dispatch centre. Where physical barriers segregate a site, a separate DSEP shall be provided for each segregated area.Note: For monitored sites, the location of the DSEP should be agreed with the fire authority.( The standard details a number of alternatives which may be used to indicate the building in alarm)

Designated Entry Points

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2.3 Zone Limitations

A detection zone shall be not more than 2000 m2

of contiguous floor area and the longest dimension shall not exceed 100 m and shall be confined to one storey

The maximum number of detectors in a detection zone shall not exceed 40 unless the identity and the location of all detectors in alarm can be individually displayed at the FDCIE.

Zone Limitations

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2.3 Zone Limitations cont’d

Where a separate building forms part of the protected premises, the separate building need not have an FDCIE, provided—

(a) it is protected by only a single detection zone that meets all other requirements of this Clause;

(b) it is monitored by the premises’ FDCIE and displayed as a single zone; and

(c) the entry to the separate building is not more than 100 m from the DBEP where the FDCIE is located.

Zone Limitations

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One of the major changes in approach taken with the 2015 revision was to focus on the integrity of the “Transmission Path” and define what could be lost by a Fault in a transmission path across any part of the FDAS. This allows designers to easily determine when duplicated transmission paths are required to protect against significant loss of function within an FDAS.

We also took a consistent approach to networking without discriminating between analog or digital communication.

Networked FDCIE

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The 2004 standard had different rules for circuits, detection loops, SIPs, FIPs and RCEs with different requirements based on the number of detectors, zones for each of these items.

The 2015 has developed the Single Zone principle and applied this across inputs and outputs and Warning systems forming part of the FDAS

Networked FDCIE

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This standard provides a much simpler approach and avoids the confusion which existed over the requirements in the previous editions of AS1670.1. For example clause 2.5:

An addressable circuit serving more than 10 consecutive storeys or more than a 20 000 m2 floor area shall have two separate cable paths, each protected to not less than WSX2 in accordance with AS/NZS 3013.

Was it OK to do a 50 story building with two non redundant loops if each loop did alternate floors so none were consecutive??? (Yes but not the intention.)

Networked FDCIE

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2.4 NETWORKED FDCIEWhere FDCIE receives or transmits information to or from other CIE, the following requirements apply:

(a) Where a main FDCIE monitors other FDCIE, the main FDCIEshall display at least a general (common) alarm and general (common) fault which may combine the disable condition

(b) Where FDCIE monitors EWCIE it shall display at least a common fault and common disablement

(c) FDCIE that provides only common indications to the Main FDCIE shall protect not more than one storey or one building.

(d) FDCIE protecting part of a building shall provide a VAD at the entrance to the protected area .

Networked FDCIE

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2.4 NETWORKED FDCIE cont’d

(e) On any site, not more than two FBP shall be

interrogated to determine the detection zone in alarm.

(f) Resetting an alarm on a networked FDCIE shall also

reset the corresponding alarm on all other FDCIE.

(g) FDCIE protecting a building shall be capable of stand-

alone operation, including occupant warning without

reliance on other CIE.

Networked FDCIE

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2.5 DISTRIBUTED PARTS OF FDCIE

Where parts of FDCIE are installed in locations remote to the

main indicators and controls, the following shall apply:

• A single fault in the transmission paths between parts of

FDCIE shall not prevent an alarm from other parts of

FDCIE.

• A failure of a single part of FDCIE installed in a location

remote to the main indicators and controls shall not inhibit the correct operation of other parts of FDCIE

Distributed FDCIE

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2.6 Transmission Path FaultsA single transmission path fault shall not directly affect more than one of the following:(a) One detection zone.(b) One detection zone indication at the DBEP and DSEP.(c) One area of occupant warning covering not more than one level and not more than 2000 m2

(d) One Smoke Control Zone including detection and control in accordance with Section 7.(e) One addressable output device not forming part of Items (c) and (d)

Transmission Paths

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2.6 Transmission Path Faults cont’dWe realized we had a problem where detection and OWS shared a common transmission path and we developed this exemption clause.

Where detection devices and occupant warning devices share a common transmission path, the requirements of this Clause for Items (a) and (c) are met, provided not more than 50% of the devices in the area covered by Items (a) and (c) are adversely affected.Note: It is intended to change 50% to 40 devices in the correction amendment.

Transmission Paths

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• All duplicated transmission paths require separation in accordance with Clause 2.6 and definition 1.4.59

• This allows determination of the applications that require separation and the degree of mechanic protection required.

Transmission path - Separation

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Section 3

Installation Requirements

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FP002 the standards committee responsible for AS1670.1 was very keen to provide means of reducing the incidence of nuisance alarms resulting from the installation of smoke detectors.

We found our options were limited by some important considerations• Any change needed to conform to the requirements of the NCC• AFAC support was critical to ensure we did not jeopardise the

ability of the system to be monitored by Emergency Services• The change really needed to work if it was to be included in an

Australian Standard

False Alarm Reduction

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We kept the current reduction measures in place:

3.2 ALARM ACKNOWLEDGMENT FACILITY (AAF)

3.3 ALARM VERIFICATION FACILITY (AVF)


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And included a new measure:

3.4 ALARM DELAY FACILITY (ADF)

False Alarm Reduction39


ALARM DELAY FACILITY (ADF)

This is a new function which allows a smoke detector and associated sounder located within a residential SOU to operate in a similar fashion to a smoke alarm by providing only a local alarm for up to 5 minutes. If the detector is still in alarm at the expiration of the time delay period the alarm will escalate and activate a Fire Alarm condition on the FDCIE.


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ADF cont’d

The SOU must be provided with either a heat detector or a sprinkler system whenever ADF is provided. This continues to provide fire protection during the time delay period.The operation of these devices must not be affected by the operation of an ADF.


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3.4 ALARM DELAY FACILITY (ADF)

ADF shall only be used in SOUs within Class 2, 3 and 4 buildings and shall comply with the following requirements:

• The relevant requirement of AS 4428.1 or AS 7240.2.• Each ADF shall control only one residential SOU.• Each FDCIE shall be capable of operating at least five ADF

simultaneously.• Each ADF shall incorporate at least one AAD producing a

minimum SPL of 85 dB(A) at 1 m, within the SOU.• Each detector shall have a visual alarm indicator.

Smoke detectors utilizing ADF shall also have heat detection protecting the same area unless the area is protected by a sprinkler system.ADF shall not be used in conjunction with an AVF, AAF or to delay an alarm from heat detectors.

Alarm Delay Facility

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The ADF shall be initiated by an alarm condition on any of the associated smoke detector(s) within the SOU. When an ADF alarm is activated, the delay period shall commence, the visual indicator on the detector in alarm shall illuminate, and the associated AAD within the SOU shall sound.The delay period shall be adjustable from 0 to 5 min in increments not greater than 1 min.If the alarm condition of all associated smoke detectors is cleared before the expiration of the alarm delay period then—(i) the ADF shall automatically reset without generating a fire alarm condition at the FDCIE;(ii) the visual alarm indicator on the smoke detector shall extinguish; and (iii) the AAD shall silence.

Alarm Delay Facility cont’d

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3.4 ADF cont’d

If the alarm condition remains in any associated smoke detector after the conclusion of the delay period, a fire alarm condition shall be generated by the FDCIE and the visual alarm indicator on the detector shall latch.

The delay shall be overridden by an alarm from any heat detector, MCP, sprinkler system or common area smoke detector.


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The delay shall be overridden by an alarm from any heat detector, MCP, sprinkler system or common area smoke detector.

Use of the word overridden is subject to misinterpretation and the following sentence is the correct intent of FP002 and is intended to be issued as a correction amendment.


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The delay shall not affect the operation of any heat detector, MCP, sprinkler system or common area smoke detector


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3.9 Fire Detection Control and Indicating Equipment

Simplified clear space requirement

Equipment Access

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3.9 Fire Detection Control and Indicating Equipment

FDCIE may share a common enclosure with AS 4428.16 EWCIE provided they can both be used by separate individuals

FBP and FFCP controls and indicators shall not be less than 750mm and not more than 1850mm above floor level

Equipment Access

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3.12 Fire Suppression System Alarms

The alarm output from each suppression system shall indicate as a separate detection zone at the FDCIE

3.13 Fire Suppression System Control

The control of any suppression system other than those complying with the AS2118 series shall be provided by a separate SHCIE

Suppression Systems

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3.15 Manual Call Points

An MCP shall be installed in a clearly visible and readily accessible location inside the main entrance area of the building and initiate a fire alarm condition.

An MCP that initiates a fire alarm condition shall be red.

An MCP required to initiate other emergency warning functions shall be white, the front face marked with the word ‘EMERGENCY’ to indicate its function.

.

Manual Call Points

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3.15 Manual Call Points cont’d

An MCP shall be mounted between 750 mm and 1100 mm above floor level and a clear space of 600 mm shall be provided in a semi-circle in front of the MCP.

Operation of an MCP shall require two distinct actions.

Manual Call Points

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3.16 Power Supply Equipment (PSE)

PSE for all parts of the FDAS shall comply with the requirements of AS 7240.4 or AS 4428.5, except for wire free equipment which shall comply with Clause 3.23.

Loss of primary power source shall produce a fault. When this condition is reported to an external monitoring service any delay by the FDCIE shall not exceed 90 min (see Clause 3.16.5).

Power Supply Equipment

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3.16 PSE cont’d

The primary power source shall be capable of operating the system, including the occupant warning system as per Clause 3.22(b).

Note: Switching from one power source to the other should not cause any change in status or indications, other than those relating to the power supply.

Power Supply Equipment

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3.16.5 Standby Power Source CapacityThe capacity of the standby power source shall be such that in the event of failure of the primary power source the standby power source shall be capable of maintaining the system in normal working (quiescent) condition for at least 72 h, after which sufficient capacity shall remain to operate the load determined in Clause 3.16.4 for 30 min. Where the power supply failure signal is externally monitored the minimum requirement is reduced to 24 h.

Standby Power

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3.16.5 cont’d

A couple of takeaway points:

• All systems not externally monitoring “power supply failure” must provide 72hrs standby

• Local systems would normally require 72hrs standby

• Power supply failure is not loss of Primary (mains) power source

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Standby Power

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3.18 Remote Monitoring (AS1670.1:2004)

• This clause has been deleted from the 2015 revision.

• There are no requirements for external monitoring in this standard.

• Monitoring is detailed in the NCC, AS4428.6 or AS7240.21 and AS1670.3

AS1670.1:2004

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3.19 Smoke and Fire Door Control

This clause is now more closely aligned with the requirements of the NCC

3.19.1 Smoke and fire doors or shutters held open and required to close on alarm shall close by means of:

– Smoke detectors unless unsuitable, then by any other suitable detector, or

– Any other fire detection system including a zoned sprinkler alarm

Door Control

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3.19.2 Sliding Fire Door Control

Provides basic requirements for operation

– Activated by smoke detectors or any fire alarm system

including sprinklers

– Provide AADs to activate on fire alarm

– Provide VWDs to warn of door closing

– Provide signs “Warning-Sliding Fire Door

– Door must take at least 20 secs but not more than

30 secs to close

Door Control

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3.20 Electric Lock Release

• Where doors are released on a fire alarm condition, the control shall meet the requirements of Clause 3.6.1.

• Where manual call points are provided to release door locking systems they shall be green in colour and clearly labelled ‘DOOR RELEASE’ and comply with the other requirements of Clause 3.15.

Electric Lock Release

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Thank You

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as 1670.1:2015 what has changed - fpa australia · ncc/bca and this makes it the key document in...

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