A Buying Guide for Generators
Before purchasing a generator you must consider what it will be used for. Will you be using a portable generator to take camping or will it be used as a standby generator for your home in case of a power outage?
You will also need to take into consideration the size of generator needed to supply the items you would like to power.
Type of generator
The first question to ask yourself will the generator be:
- Used with directly connected plug in appliances; or
- Connected via a plug and appliance inlet to your home via a changeover switch (installed by a qualified electrical contractor); or
- A hard wired connection to your home via a changeover switch (installed by a qualified electrical contractor).
If you will be purchasing a generator for use with plug in equipment like hand held equipment (e.g. a drill) you will need to purchase a generator that incorporates an RCD (Safety Switch).
If you will be purchasing a generator to plug in or hard wire directly into your home via a changeover switch, the RCD should not be incorporated into the generator. In this case the equipment in your home will be controlled by the RCD’s installed in your switchboard. Please note: To ensure the safety of the installation it is advisable to install a hard wired generator into the switchboard, this will eliminate the risk of someone using the plug in generator (which does not incorporate a RCD) for any other use.
The lead
If you are using a plug in type generator the supply lead from the generator to your house will need to be the correct size for the generator - if unsure check with your electrical contractor.
The supply lead will also need to be installed to be protected against any mechanical damage, for example installed in a suitable wiring enclosure.
As previously mentioned, it is advised that generators for this use be hard wired.
Where to put the generator
Gas or fume poisoning is not to be taken lightly, therefore generators need to be placed in areas where exhaust gases, smoke or fumes cannot reach dangerous levels or enter any areas that people may occupy. Generators must also not be exposed to the weather unless they are suitably protected.
Care must be taken with the positioning of the generator to make sure refuelling can be performed easily. High temperature surfaces or equipment that may emit arcs or sparks may cause ignition when refuelling.
Other information
Always read and follow your manufacturer’s instructions before using your generator and make sure you generator is properly maintained so it is ready for use when it is needed.
Earth stakes are not required or recommended on a generator as per AS 3010. If unsure please check with your electrical contractor.
