Find great deals on eBay for Caravan Mains Extension Lead in Cables and Hookups for Camping. 14m Caravan Hook Up Cable 16A Extension Lead & Mains Plug Adaptor. Camping and Caravan Site Mains Extension Hook Up Leads are available as 10m or 25m lengths and delivered Next Working Day! Camping and Caravan Site Mains Extension Hook Up Leads are available as 10m or 25m lengths and delivered Next Working Day! Please enter the email address where you would like us to send the order confirmation. Have one to sell? Assembled in the UK by our team of in-house by qualified electrical engineers. This usually takes much less than one working day. The cable keeper with a purpose. 20. Self-Build DIY Camper Van. 240V AC electrics, consumer unit, inverter, and sockets