| Topic: Electric hookup in tents and RCDs
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Message posted by saxo1 on 17/11/2017 at 12:03pm
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There are many factors involved in determining the size of cable required for an appliance,one is the amount of time the appliance would normally be expected to operate continuously carrying the maximum current.
The current rating of a cable is the current it can safely carry continuously without exceeding the temperature rating for the insulation.
UK domestic appliances ie a vacuum cleaner, aren't protected by a 32A mcb they are protected by the plug top fuse.
There is nothing in the regs that requires a vendor to ensure that a hookup for camping is required to meet a given standard, the only advice is that it should follow the guidelines given in BS7671 for hookup cables for caravans.
The length of cable on a lot of camping hookups dont meet the required standard of app 25m as laid down in BS7671,this in itself doesn't pose a safety hazard but it could lead to people using extension cables if their cable isn't long enough, which again isn't permitted under the regs for campsite supplies.
I am lead to believe that the CMC club won't permit the use of extensions, others may, but in the event of an accident the site operators could be prosecuted for allowing their use as they hadn't demonstrated a duty of care toward the site users.
The plugs for 16A and 32A are different so t isn't possible to plug a normal 25mm hookup cable into a 32A socket.
I would agree that provided all the safety equipment is functioning correctly and the RCD is trip tested every time it is plugged in the risks to campers is minimal,the whole debate is about someone saying that 1.5mm is all that is require,it may well operate satisfactorily but it isn;t what is recommended and can lead to people not bothering with other safety features.
The regs have to cover all possible scenarios,the risk in caravans is greater than in tents,apart from the damp conditions,as there is little in the way of fixed electrical appliances.the large majority of appliances campers use are portable double insulated.
To put it into perspective the electrical safety on a campsite,provided all the regs are followed and equipment maintained is probably safer than a large percentage of UK domestic dwellings.
The thing to be aware of is that MCBs and Fuses don't trip at their current rating,that is the current that they are rated to carry continually plus a considerable margin of overload for a specific maximum time.
Post last edited on 17/11/2017 12:08:35