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NZS 4512

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NZS 4512
LED zone index display for remote display.
Created26 June 1981
Presented26 June 1981
LocationNew Zealand
Commissioned byStandards New Zealand
Author(s)Standards New Zealand
SubjectFire Detection and Alarm Systems in Buildings
PurposeFire Detection and Alarm Systems in Buildings

NZS 4512 Fire Detection and Alarm Systems in Buildings, is a New Zealand Technical Standard, which specifies design, manufacture, installation, service and classification of fire detection and alarm systems for buildings in a range from domestic houses and commercial businesses to high-rise buildings and large campuses.

It refers the requirements in both manual and automatic systems as defined in the New Zealand building code, excluding single station and interconnected smoke alarms for houses covered by NZS 4514. the standard is maintained by Standards New Zealand.

The first edition of NZS 4512 was published in June 1981, introduced among other standards, in the wake of a deadly fire broke out in the Ballantynes Department Store in Christchurch, where 41 people died and 41 more were trapped in the blaze. The current revision of this standard is NZS 4512:2021, published in May 2021.

Manufacture & design[edit]

When it comes to the manufacture and/or design of the fire system, the field equipment shall be tailored to NZS 4512. It is a mandatory requirement for state-owned schools and educational facilities managed by Ministry of Education, to have equipment meeting these requirements. There are different brands and models, manufactured and designed by each manufacturer.

Addressable systems[edit]

Analogue addressable fire systems comprise a control panel with SLC or digital loop circuits for field devices. An addressable system uses an LCD user interface to indicate a condition per device on the loop circuit, and can be networked via ethernet or fiber optic cables.

Conventional systems[edit]

A conventional system has one or more indicating and/or non-indicating (clean contact) circuits for initiating devices for each zone. The controls are either fitted internally on the motherboard of the panel or with a visible display and keypad.


The NZS 4512 standard was introduced in June 1981. Since its introduction, the standard has been in six revisions.

  • NZS 4512:1981 Fire alarm systems in buildings - Published June 1981
  • NZS 4512:1994 Fire alarm systems in buildings - Published October 1994
  • NZS 4512:1997 Fire detection and alarm systems in buildings - Published January 1998
  • NZS 4512:2003 Fire detection and alarm systems in buildings - Published February 2003
  • NZS 4512:2010 Fire detection and alarm systems in buildings - Published November 2010
  • NZS 4512:2021 Fire detection and alarm systems in buildings - Published May 2021

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