隔离与分隔检查器
检查哪些可共用外壳及其分隔要求。
Reads AS/NZS 3000:2018 and HELUKABEL and LAPP catalogues 2024. Tables checked 27 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。
- Separate power from signalThe separation the two circuits need on the route.
- Run data beside power in a wallThe separation between a power cable and a data cable.
- Put extra-low voltage in a switchboardWhat may share the enclosure at a switchboard.
- Share a conduit between two tenanciesWhether circuits of two occupancies may share a wiring system.
- Run a cable near a gas pipeThe separation from a gas pipe above ground.
- Separate fire alarm cable from powerThe separation a fire alarm circuit needs from low voltage.
输入
使用默认输入值的示例计算。
- 第一个回路
- 低压
- 第二回路
- 特低电压
- 两条回路位于同一电气装置内
- 是
- 两条回路服务于同一使用场所
- 是
- 布线系统
- 公共外壳
- 混合电压的布置方式
- 无
- 回路在该配电箱起始或终止
- 否
- 附近的非电气管线
- 无
- 同一路径上的数据网络电缆
- 无
可与此布线系统共用
否
- Clause
- AS/NZS 3000:2018 Cl 3.9.8.3
- 原因
- 低压和特低压电缆仅可在所列三种布置之一的情况下共用布线系统。
此结果仅供设计参考。请对照现行标准进行核验。
计算步骤
- 回路Low voltage with extra-low voltage
AS/NZS 3000:2018 Cl 3.9.8.3
- 布线系统共用外壳
AS/NZS 3000:2018 Cl 3.9.8.2.1
- 允许结果否
AS/NZS 3000:2018 Cl 3.9.8.3
- 现行布置方式无
AS/NZS 3000:2018 Cl 3.9.8.3
关于此计算器
How this is calculated
The tool checks whether two kinds of circuit may share a wiring system. It reads AS/NZS 3000:2018 Cl 3.9.8. It also gives the separation to keep from other circuits.
- Circuits. You pick the two circuit types, such as low voltage and extra-low voltage. The tool reads the rule for that pair from Cl 3.9.8.3.
- Wiring system. You pick the enclosure, such as a common enclosure or separate ones. The tool reads Cl 3.9.8.2.1 for the sharing of one system.
- Arrangement. You pick the arrangement in force. The tool checks it against the arrangements the clause permits.
- Result. The tool gives Yes or No, with the clause and the reason. It adds the separation to keep from a service or from data circuits nearby.
| Step | Table or clause | What it decides |
|---|---|---|
| Circuit pair | AS/NZS 3000:2018 Cl 3.9.8.3 | Whether the pair may share |
| Wiring system | Cl 3.9.8.2.1 | The enclosure the pair shares |
| Arrangement | Cl 3.9.8.3 | Which permitted arrangement applies |
Worked example
- Low voltage and extra-low voltage in one enclosure. The circuits sit in the same installation and occupancy, with no special arrangement. The tool answers No. They may share a wiring system only under one of three listed arrangements. The clause is Cl 3.9.8.3.
Limits
The tool reads the rules of Cl 3.9.8. It does not read the rules of a cable maker or a data standard. For telecommunications cable, check the cable own rules.
It does not size the separation by calculation. It states the rule. It does not cover induced noise or electromagnetic interference. Check the installation against the full clause before you rely on a Yes.
See also: Control panels and PLC wiring, the comms cable selector and the loop power tool.
问题
结果仅供设计参考。请依据现行标准核对。
隔离与分隔工具有什么作用？
工具报告两个回路能否共用同一管、线管、电缆、外壳或线槽。它给出相关条款、混合电压所需的布置，以及最小间隔距离。它还报告与燃气、水及电信设施的间距。
结果来自哪一条款？
AS/NZS 3000:2018 Clause 3.9.8。Clause 3.9.8.2.1 涵盖共用管道或电缆，Clause 3.9.8.2.2 涵盖共用外壳内的分隔，Clause 3.9.8.3 涵盖电压等级，Clause 3.9.8.4 涵盖燃气、水及电信服务。
隔离的最小距离是多少？
Clause 3.9.8.2.2 规定，仅靠距离分隔同一外壳内的回路时，间距为 50 mm。其他两种方法是采用各自带护套的电缆，以及耐火隔板。该规定不适用于回路起止的配电箱处。
低压电缆可以与超低压电缆共用一套布线系统吗？
仅在 Clause 3.9.8.3 三种布置之一下适用。第一种：低压电缆提供与双重绝缘相当的防护。第二种：每根电缆及其各芯线的绝缘额定值均不低于线路中的最高电压。第三种：固定的连续隔板为低压电缆提供独立隔室。高压绝不与其共用。
本工具是否给出电信线路的分隔距离？
是的，即 Clause 3.9.8.4(c) 在 Figures 3.8 和 Figures 3.9 中所示的情形。明装，或位于墙、地板或天花板内时，应保持 50 mm 间距或加装隔板。新西兰共用沟槽内，线管之间应保持 50 mm 间距。AS/CA S009 和 NZ TCF Premises Wiring Guidelines 涵盖其他情形。AmpSize 两份文件均未收录。
本工具读取的条款和表格
- AS/NZS 3000:2018 Cl 3.9.8.2.1Segregation: common enclosure
- AS/NZS 3000:2018 Cl 3.9.8.2.2Segregation of circuits that share an enclosure
- AS/NZS 3000:2018 Cl 3.9.8.3Segregation: low voltage with extra-low voltage
- AS/NZS 3000:2018 Cl 3.9.8.4(b)Separation from above-ground gas and water piping
- AS/NZS 3000:2018 Cl 3.9.8Segregation and separation of wiring systems
- LAPP catalogue, power and data cable clearancePower and data network cable clearances
表格最后核对于 27 Sept 2026。
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