Electrical Safety Tips Series. 1 DIY. DIY errors cause half of all electric shocks in our homes and offices. Almost 50% admit that they feel they should try and tackle the household maintenance and repair jobs themselves or ask a mate before calling on a professional. It Is discovered that half of all severe electric shocks are caused by DIY attempts, withg the main errors including cutting through power leads, drilling into wiring and repairing electrical items while they're switched on. Professional electricians have seen or been involved with fixing electrical DIY mishaps that had resulted in fires,serious electric shock or significant or repair costs. Tips for DIY Locate cables In Your wall. A common error is accidentally drilling, nailing or screwing things into cables hidden inside your walls. Use and RCD ( Residual Current Device) An RCD can save your life by cutting off the power in the event of an electrical fault. Shut off the power Shut off the power in your fuse box and use battery powered tools. Check power tools and watch out for the lead. Get advice from professional electrician. The best way to avoid any electrical problems in an installation is to seek the advice of a professional electrician.