Most extension cords (technically called extension cords) have no plug and socket and are equipped with standard plugs. This can be dangerous if you power a device outdoors and the ground is wet. Here we show you how to make a waterproof extension.
- Electrician's knife
1. The extension cord length (type H07RN-F or H05VV-F - more flexible - 3 conductors 2.5 mm2) varies depending on how you use it. However, do not go below 15 m and do not go above 50 m, the roll of wire can be imported, and the drivers may overheat if you connect a high-power device (radiator, by example). Start by removing the conductors from the insulating jacket that protects and joins them. Use an electrician's knife for this purpose, proceeding gradually so as not to damage the insulation of each of the drivers. Be careful not to hurt yourself!
2. Strip off the conductors to the desired length (which should exactly match the depth of the slots provided for receiving them in the plugs). Properly tighten the locking screws of the conductors, because it is common that this kind of extender is subjected to sudden pulls, when the powered device arrives at the end of extension.
3. Replace the plug board in its rubber insulating body. You have to force it back into place, which is normal, to ensure a perfect seal.
4. The sealing must concern the plugs (male and female) but also the conductors. Considering the type of use, it is necessary to take a multiconductor cable comprising two power supply conductors and a third one for the connection to the ground. This obviously involves a suitable type of record. In order to ensure a good seal, the section of the cable must be slightly greater than that of the rear hole of the plugs; otherwise the water would seep in.
(photos / visuals: © DIY-Prod, except special mention)
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