火灾报警警报器声级计算器
求出火灾报警系统须达到的声级。
Reads NZS 4512:2010. Tables checked 26 Sept 2026.
尝试一个工程 6
每项工作都会预填示例数值。请替换为您自己的数值。
- Set the sounder level in a plant roomThe alarm level a sounder must reach over 78 dB of plant noise.
- Set the sounder level in a bedroomThe level at the bedhead in sleeping accommodation.
- Set the level where ear protection is wornWhether a visual device is needed with ear protection.
- Set the level for a voice systemThe level over ambient for a voice alarm.
- Set the level on a balconyThe level a sounder must reach on a balcony.
- Set the level in a quiet officeThe level a sounder must reach over 45 dB of ambient sound.
输入
使用默认输入值的示例计算。
- 残余声级 (dB)
- 50
- 用于疏散的语音设施
- 否
- 建筑提供住宿
- 否
- 可供人员使用的阳台
- 否
- 经常佩戴的护耳器
- 否
要求值 (dB LAFmax)
65
- 高于残余水平的余量（dB）
- 5
- 设定方式
- 65 dB floor
- 需要视觉报警装置
- 否
此结果仅供设计参考。请对照现行标准进行核验。
计算步骤
- 剩余声级，dB50
NZS 4512:2010 Cl 406.3
- 超过剩余电平的余量，dB5
NZS 4512:2010 Cl 406.3
- 由余量得出的声级，dB LAFmax55
NZS 4512:2010 Cl 406.3
- 适用的下限值，dB LAFmax65
NZS 4512:2010 Cl 406.3
- 所需声级，dB LAFmax结果65
NZS 4512:2010 Cl 406.3
- 上限，dB LAFmax100
NZS 4512:2010 Cl 406.3
- 测量高度1.8m
NZS 4512:2010 Cl 406.3
- 视觉装置触发级别，dB LAeq(10min)90
NZS 4512:2010 Cl 406.4
- 需要视觉报警装置否
NZS 4512:2010 Cl 406.4
- 护理区低位声响器，高于环境的分贝数5
NZS 4512:2010 Cl 406.7
关于此计算器
How this is calculated
The tool finds the sound level a fire alarm sounder must reach. The point is the bed head or the room. It reads NZS 4512:2010 Clause 406.
- Residual level. You enter the ambient level in dB. Cl 406.3 uses it as the base.
- Margin. The tool adds the margin that Cl 406.3 sets for the room. The margin depends on the system type and on sleeping accommodation.
- Lower limit. It reads the floor that applies, such as the floor for sleeping areas. The result is not lower than that floor.
- Upper limit. It reads the ceiling level. The result is not higher than that ceiling.
- Visual device. Cl 406.4 sets a trigger level. Above it, a visual alerting device is also needed.
- Measurement height. The tool gives the height for the reading, from Cl 406.3.
The result is in dB LAFmax.
Worked example
- Office at 50 dB ambient, tone sounder. The margin is 5 dB. The required level is 65 dB LAFmax. The 65 dB floor sets it. A visual alerting device is not required.
Limits
The tool does not count devices. Check Cl 406.6 for that. It does not give the measurement method. A care area has its own rules in Cl 406.7. The tool reads NZS 4512:2010. NZS 4512:2021 supersedes it, so check the current edition.
The result is a design target. Measure the level on site with the method the standard gives, then record it. A tone sounder and a voice sounder can need different levels. Check the entry you pick against the clause.
See also: Detector spacing calculator, Fire alarm cabling and Fire alarm battery.
问题
结果仅供设计参考。请依据现行标准核对。
火灾报警警报器的声级须达到多大？
NZS 4512:2010 Clause 406.3 规定了高于剩余声级的余量。若设有疏散语音设施，余量为 10 dB，否则为 5 dB。声级还须处于 65 dB 与 100 dB LAFmax 之间。AmpSize 报告两者中较高的数值。
床头处需要什么声级？
若建筑提供住宿，Clause 406.3 规定在床头测得的 75 dB LAFmax。Clause 406.5 和 Clause 406.7 涵盖其他区域。开启住宿选项即可查看床头数值。
何时需要视觉报警装置？
Clause 406.4 列出三种情形。AmpSize 检查其中两种：环境声级超过 90 dB LAeq(10min)，以及经常佩戴护耳器。请完整阅读 Clause 406.4，因为其中的第三种情形本工具不作检查。
声级如何测量？
Clause 406.3 给出测量方法及仪表标准。AmpSize 报告的测量高度为 1.8 m。可供人员使用的阳台有其单独的数值。记录数值前，请完整阅读 Clause 406.3。
本工具能否证明某系统合规？
否。AmpSize 针对您输入的数值，报告 NZS 4512:2010 Clause 406 的各级要求。它仅供参考，不构成裁定。火灾报警设计须依照整套标准及建筑物声明的功能要求进行检查。
本工具读取的条款和表格
- NZS 4512:2010 Cl 406.3Sound level limits
- NZS 4512:2010 Cl 406.4Visual alerting device trigger
- NZS 4512:2010 Cl 406.6Number of alerting devices
- NZS 4512:2010 Cl 406.7Care area alerting device
- Cl 406Alerting device sound pressure levels
表格最后核对于 26 Sept 2026。
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