rewiring trailer for catering purposes...advice please !!!!!!!!!!!!!

[jules27]

hello there , got a few questions about this ...
It is for a catering trailer so larger than normal consumption . I was thinking (this might be overkill ) Inlet 64 amp commando socket underneath trailer , 16mm tails ,63a /30ma RCD mainswitch , 32a RCBO , 16a RCBO , 6a RCBO. lighting on 1.5mm 6a and power on 4mm 32a .Questions are will 16mm tails fit into 64 amp commando?
, will my sockets be able to accomodate 2x4mm in each terminal ?
. Load not really specified yet but 2 chest freezers ,onefridge , waffle maker , coffee machine , would like to put an outside socket on end of radial aswell , is a 16 a ok or just a wether proof 13a better?
Will i need to provide an earth spike as it will often be connected to a genny ?
Thinking lots of bonding important as it is metal trailer ........
Also lastly ....What flexible cable can be recommended to use ?....



all answers greatfully recieved

 

[telectrix]

suggest you calculate load of appliances first. 16mm and 64A seems excessive to me for what you will be running. i once owned a similar setr-up, rented out and the electric supply was from a 3kva genny. that's only 13A

 

[malcolmsanford]

Well you will come under section 717 of the regualtions and if you have a copy of these then a good look at this section will be adviseable.

The connection point of a 63amp commando socket is fine as it needs to be of BS 60309-2. I personally have never tried to fit 16mm^ tails into a Bs 60309-2 and if your thinknig of that much power it might pay you to look for 3 phase 32amp type.

Not sure why you are concidering a 63mA RCD main protection device and then using RCBO's either use the RCBO's and just a main double pole switch, or the RCD with double pole switch and MCBs

Yes you should easily get 2x4mm^ cables into socket outlets, I assume you are going to use BS 1363 sockets for the smaller appliances and commando for anything larger.

Yes you can use either a dedicated BS 1363 waterproof socket or the BS 30309-2 as they are both IP44 rated. Personally I would use the BS 1363 as it can utilise a fused plug top.

All bonding as in the home will need to bond to the MET that includes the chassis and all bonding cable must be of fine strand H05V-K and HVO7V-K to BS 6004.

Insude the unit cable to BS 6004, 7211 and & 7919 can be used as either singles in conduit or as sheathed cables, basically it is stranded cable.

Finally I can't really help about the generator part. I would have thought if your using a generating set as sole means of supply then it would need earthing

 

[jules27]

thanks for the replies , maybe ill scale down to a 32amp commando socket like you said and 6/10amp cables into the board.

thanks for your help