In the construction business, it is likely that there will be electrical sources in most of your jobs. You might not be able to see them, but it doesn’t mean they aren’t there! Electrical wiring can look like pipes, and they may be in a range of different colours.
Before you begin any drilling or cutting where there may be electrical wires, be sure to check the area carefully. Ask to see any plans of the electrical installation and use thesseto locate any wiring in your work area. Use the correct equipment for your job to help protect you from any dangers.
Remember, if you are ever in doubt about the safety of your work area, do stop and consult someone who is more competant with electrical supplies than you are!