eWOF Otago

What is an eWOF? An eWOF is a formal inspection of your camper or caravan's fixed electrical installation. During the inspection, a qualified Electrical Inspector (not Electrician) checks that your electrical system meets the safety requirements of AS/NZS 3001, the standard for transportable structures.

An eWOF inspection typically includes:

• External power inlets

• Switchboards and RCD protection

• Wiring condition and routing

• Sockets, outlets, and fixed appliances

• Earthing and bonding

• Overall electrical safety and compliance

Once your installation passes, you receive a certificate valid for four years, along with an eWOF label for your vehicle. 

Why is an eWOF required? In New Zealand, any caravan, motorhome, or RV that connects to a 230‑volt powered campsite must have a current Electrical Warrant of Fitness (eWOF). This requirement exists to protect you, your passengers, and the wider public from electrical hazards such as shock, fire, and equipment failure.

Campgrounds and holiday parks are legally obligated to ensure only compliant vehicles connect to their power supply. Without a valid eWOF, they cannot allow you to plug in.

What requires an eWOF? 

• Caravans Motorhomes

• Campervans

• Tiny homes on wheels

• Food trucks or mobile food trailers

• Portable cabins or sleepouts with 230V inlets

• Any RV or transportable structure with a mains power connection

Consequences of no eWOF: Operating without a current eWOF can lead to serious issues:

Access Restrictions. Most powered campsites will refuse connection without a valid eWOF.

Safety Risks. Non‑compliant wiring significantly increases the risk of electric shock, fire, and equipment damage.

Insurance Problems. If an electrical fault causes damage or injury, insurers may decline claims if the vehicle was not compliant.

Legal Liability. If someone is harmed due to unsafe electrical installation, the owner may be held responsible.