2.6 – Summary

We discussed several important issues when dealing with electricity. We looked at how several different factors can affect the dangerous effects of electricity including: wet vs dry skin, increasing the amperage of equipment and the effects of frequency. Next we introduced how to create a safe circuit design by implementing common safety measures including GFCIs, Isolation transformers and LIMs and identified some common hazards found with biomedical equipment. Finally we described the major symbols found on biomedical schematics and provided some tools and tips about how to properly understand these diagrams. Now that we have a basic understanding of electronics and electrical safety we will not move onto interacting with biomedical devices by discussing basic troubleshooting techniques and the equipment used in analyzing these devices.