USB charger outlet in Bathroom Zone2

I've been asked to add a USB charging port into a bedroom with a bath in it.

My understanding of BS7671 is that a room with a bath is a bathroom. As such the outlet would be in zone 2 of the bath.

Would I need to power the charger via a safety transformer and could this be built into a +IP4 enclosure similar to a shaver outlet

Thanks for your assistance

Parents
  • I will read Appendix Three of the IET Code of Practice In-Service Inspection and Testing of Electrical Equipment 5th Edition again over the weekend, as I am still trying to decide what the practical application of the guidance is regarding a fitting like this:

  • Despite having a choice of USB sockets the technical information on the website says it is only for use with shavers.

    But in reality it will be used for charging electric toothbrushes, phones, tablet computers, Bluetooth speakers and all sorts of other gizmos.

    As it stated that it complies with BS EN 61558 it appears to be suitable for installation in Zone Two, so long as direct spray is unlikely.

    But I have an image in my head of someone using a phone in the bath whilst charging it from the unit with a long USB lead, rather than using it to shave whilst standing and looking in a mirror over a wash basin.

  • Also, I presume there is not an interlock between the shaver and USB sockets, so someone could use an electric razor and a charging phone a the same time, one in each hand, but fittings like this are not supposed to supply more than one hand held appliance at a time and with the dual voltage shaver sockets the interlocked socket shutters prevent two shavers being used at the same time.

  • BS61558-2-5 allows this. Its under electronic circuits.

    Note the low power, only 12w 5v. There is no PD power.

  • but fittings like this are not supposed to supply more than one hand held appliance at a time

    I suppose it depends if the USB and shaver sockets are galvanically connected - if not you'll end up with, in effect, two separate system that just happen to share a plastic box - so no real risk there (if they are indeed separate).

       - Andy.

Reply
  • but fittings like this are not supposed to supply more than one hand held appliance at a time

    I suppose it depends if the USB and shaver sockets are galvanically connected - if not you'll end up with, in effect, two separate system that just happen to share a plastic box - so no real risk there (if they are indeed separate).

       - Andy.

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