Safety, durability, design and ease of installation are all key considerations before making your final decision.
Safety
Electricity is dangerous. The single most important feature in a powerhead is its electrical safety. Consider the powerhead’s following safety features.
- Circuit breaker (MCB) and safety switch (RCD) protection is a must.
- Are the safety switches used in the product approved for use in Australia or by your local electrical authority?
- Safety switch protection must operate in both active and neutral cables and have a maximum residual current rating of 30mA up to 63A. Above 63A, 100mA is permissible.
- Do the safety switches carry a warranty? A minimum five year warranty is a good indication of quality.
- Are the products made in accordance with AS/NZS 3000 and AS/NZS 3001? These are the relevant Australian Standards for Marine Service Units and ensure the product meets minimum electrical standards.
Durability
Ensuring your Service Units are electrically safe won’t count for much if the electrical components aren’t kept clean and dry
- Metal offers high impact resistance for your marina. But there are metals and there are metals! Make sure your Service Untis are made from the highest grade marine grade aluminium or 616 stainless steel.
- Where plastics are used in the Service Unit make sure they are non-corrosive and have added UV protection. To help against the harsh marine environment.
- Check all metal fixings used are stainless steel grade 304 or better. 316 is preferable.
Design
Service Units are one of the first touch points visitors and members have during their stay. And as the saying goes, first impressions last.
Look for features that make plugging in a seamless experience for your customers.
- Easy to operate self-closing doors. Protects expensive electrical components and maintains weatherproof rating.
- Power lead restraint points for attaching power leads.
- Quality and durability to withstand ‘heavy handed’ sailors.
- Designated space to attach berth numbers or labels for easy identification of berths.
Ease Of Installation And Maintenance
Overlooking the cost of installation is the number one reason for budget blowouts, when purchasing new Service Units. Doing your research here can save you thousands down the track.
- Ask about the installation process. An intelligently designed powerhead can cut your electricians installation time, and costs, in half.
- Check out the process for replacing socket outlets and safety switches if they happen to fail.
- Ask the manufacturer for samples of their product and have your electrician compare them for quality and ease of installation.
