Are RCDs mandatory in NZ?

Are RCDs mandatory in NZ?

In new domestic/residential installations, all final subcircuits must be protected by a 30mA RCD installed at the switchboard where the final subcircuit originates, including hardwired appliances such as air conditioning, ovens and hot water systems.

Does every circuit need to be RCD protected?

Separate RCD protection is not necessarily required for each circuit of an installation but, in order to minimize the likelihood and consequences of tripping, a single (‘front end’) RCD should not be used to protect all the circuits. Regulation number(s):

When did RCDs become mandatory in NZ?

From January 2003, all new circuits originating at the switchboard supplying lighting or socket outlets (power points) in domestic buildings must have RCD protection.

Do I need an RCD if I have RCBO?

RCD protection of all circuits with an RCBO. Some RCDs in older installations may state 100mA and are not sensitive enough for modern standards – a 30mA RCD would be required as part of the extension lead.

When should I install an RCD?

An RCD or Safety Switch needs to be installed in the following situations:

1. Building a new home. All new homes built since 1992 must have RCD’s installed on light and power circuits.
2. Buying a property.
3. Renting out a property.
4. Manufacturing Industry.
5. Office work and Service work.
6. Amusement work.
7. Rural Industry work.

What IP rating must a RCD have NZ?

(consumer sockets). All the sockets outlets to provide an IP rating of at least 66. Lifeguard® Residual Current Devices rated for Personnel Protection 30mA are used to protect all consumer final sub circuits and sockets ensuring the safety of all users.

Is an RCD essential?

It is essential to ensure that any extension lead used outside is protected by an RCD. We would always recommend having an RCD as part of the extension lead unless it is 15m or shorter and you are absolutely certain that any sockets to which it will be connected are already RCD protected.

Can you mix RCBO with RCD?

Yes, but only if there is not already an 30mA RCD covering the section of busbar you are mixing them on, ie dual RCD or split load board.

Can you have 2 RCDs on circuit?

Hi, I have two 30mA RCDs in series, first one as the main switch in the house consumer unit covering all 11 circuits, second one as the main switch on a garage consumer unit, covering three circuits….See Also:

Do bathroom lights have to be on a separate circuit?

Light fixtures and wall switches must be on a separate circuit. A 15-amp circuit is minimum, but this is often a 20-amp circuit, especially if there is a heat lamp integrated into this circuit. The vent fan may be powered by this circuit.

Why test RCDS in New Zealand?

Regular fixed RCD testing is mandatory in New Zealand for all workplaces, e.g. commercial premises, offices, schools, hotels and motels, retirement villages, workshops, factories and many other buildings. Regular testing will ensure your RCDs remain in good working order to… Avoid fire and/or electrocution. Promote safety in the workplace.

What are the electrical requirements for an RCD?

The RCD must be Type A with a rated residual current of 30 milli-ampere (mA)and be either labelled as such or have the symbol on the device. There are three common “functional” types of

Do I need an RCD for my appliance?

We recommended to always use an RCD with any appliance being used out of doors or in a damp or wet location, test the RCD each time it is plugged in and inspect the appliance (and any cords) first for damage. And remember… RCD protection minimises the risk of serious electric shock.

What sub circuits need to be RCD protected?

In residential installations, all sub circuits need to be RCD protected. This includes fixed electrical equipment like cooktops, hot water systems, and air-conditioners. In commercial installations, the following rules apply: