NZS 4512:2010
Cl 405.3
Detector spacing, wall distance and coverage
The detector spacing tool reads one row per detector type. Each row holds the spacing, the corridor spacing, the wall distance and the corridor wall distance. It holds the floor area per detector and the longest distance from any point to a detector, line or beam. Last is the limit below the apex of a sloping roof. A null wall distance means Clause 405.3 states none for that type.
Kua manatokotia: pānuitia ki te paerewa tā, whārangi 43, 52–53, 59–60. I tirohia 26 Sept 2026.
Ngā unit: Max spacing M m, Max spacing corridor M m, Max wall M m, Max wall corridor M m, Max area M 2 m², Max point distance M m, Apex mm mm
Ko ēnei ngā uara e tuhia ana e AmpSize. Kāore he kupu o te paerewa e tuhia ana. Whakamanahia ki te paerewa o nāianei.
4 rārangi
| Type | Max spacing M (m) | Max spacing corridor M (m) | Max wall M (m) | Max wall corridor M (m) | Max area M 2 (m²) | Max point distance M (m) | Apex mm |
|---|---|---|---|---|---|---|---|
| point-heat | 6 | 9 | 3 | 4.5 | 30 | — | 500 |
| line-heat | 8 | — | — | — | — | 4 | 500 |
| point-smoke | 10 | — | 5 | — | — | 7 | 500 |
| beam-smoke | 14 | — | — | — | — | 7 | 600 |