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IAIN NORMAN: WE WERE RECENTLY ASKED TO PROVIDE A 32 A SUPPLY FOR THE FIRST OF MANY SMALL SAUNAS TO BE INSTALLED BY OUR CUSTOMER. YOU CAN IMAGINE OUR SURPRISE, THEN ,TO FIND THEY EXPECTED A PLUG ON OUR END. IT WOULD SEEM THE MANUFACTURER HAD NOT NOTICED THIS BEFORE AND HAD SOLD MANY SAUNAS ALREADY. HAVING BEEN INFORMED OF THE PROBLEM, THEY WILL NOW BUILD THE SAUNAS WITH A PLUG. I WONDER HOW MANY ARE ALREADY INSTALLED WITH A PLUG ON THE SUPPLY LEAD?
With any item of electrical equipment that has been supplied by a client for connection by an electrical contractor, it’s expected that the information provided with regards to the characteristics of such equipment is sufficient to allow the correct design of the circuit, including any external influences.
A final circuit is installed to connect current-using equipment either directly or by socket-outlet or other connection units. The provision in this case of a BS EN 60309-2/BS 4343 230 V 32 A socket-outlet as the means of termination for the sauna to the final circuit does not provide a suitable means to connect. To allow connection to this socket-outlet via a BS EN 60309-2/BS 4343 plug connected to the final circuit would result in the pins of the plug being exposed live parts.
If a socket-outlet is used for the final circuit termination then the appropriate plug for connection to that socket-outlet shall be used.
Regulation 553.1.201 details that BS 1363 socket-outlets for household use are preferable and the very nature of BS EN 60309-2/BS 4343 being intended for industrial use.
The socket-outlet appears to be a IP44 splashproof version when the external location may require IP67 waterproof.
There has been no provision of a means to disconnect the equipment for emergency switching.
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