展览与游乐场布线检查器

How this is calculated#

The tool checks the RCD protection of show, carnival and fair ground wiring. It reads AS/NZS 3002:2021 and the Electricity (Safety) Regulations 2010.

1. Method of supply. You pick how the event wiring is supplied. The tool reads Cl 3.2.1 for that method.
2. Rated residual current. It reads the maximum from Cl 3.2.1.2 and compares your device with it.
3. Final subcircuit rating. It says whether the clause caps the rating of the subcircuit it applies to.
4. Device and conductors. It names the device the clause calls for, and the conductors it must operate in.
5. Enclosures. It gives the lowest IP rating for an HRC fuse base (Cl 2.4.2.1) and a connection facility (Cl 2.7.6.2).
6. Interval. It gives the reg 75(1) assessment interval for a carnival or fair ground.

Worked example#

• Event wiring from a connection facility, 20 A socket‑outlets, 30 mA RCD. The maximum rated residual current is 30 mA, so the device passes. The clause sets no cap on the subcircuit rating. The assessment interval is 1 year maximum.

Limits#

The tool compares the rated residual current only. It does not check the device type or the number of poles. It does not decide whether an exception applies. The depth and height checks cover installation wiring only. AmpSize holds pages 1 to 21 of the standard. It does not hold Section 4, or Appendices C and D.

The tool suits a check of event wiring before it connects. It compares the rating you enter with the clause. It does not replace the check by a competent person that Cl 3.2.1.1 describes. Record where the overcurrent and RCD devices sit, so supply can return fast after a trip.

See also: RCD selection, RCD types and where required and Assessment intervals.