Ehu when first fitted?

[toad a caravan]

I'm interested if anyone knows when a 240v supply was first introduced for caravans? Thanks...Gary

 

[RogerL]

I suspect the earliest used a variety of connections, probably going right back to the old 15A round pin domestic plug/socket and then on to the more modern 13A square pin domestic plug/socket before adopting the present 16A ISO connector. I know the latter was the "normal" standard in 1983 when I bought my first caravan but few had it fitted as standard - I fitted 230V electrics myself to our '83 Ace Globetrotter and got a local electrician to test and certify it - ironically the RCD I bought from a caravan dealer failed his test, not fast enough to trip, so I had to replace it with a unit from my local electrical wholesaler.

 

[Dustydog]

My first two caravans a 1974 Ski and a 1976 Sprite. Had no EHU or toilet. Just a gas mantle , gas water heater and a weird gas fire. Carried two 12 v batteries and had them charged up,at the site office!
I’m sure the more luxurious models had EHU?

 

[Lutz]

I presume that you mean UK caravan manufacturers because Continental caravans always had EHU and many still do, exclusively. Batteries only became widespread over on the other side of the Channel with increased fitment of motor movers.