The Global Electrotechnical Commission (IEC) maintains a guide with letter designations for frequently compatible types of plugs,[seven] which expands on earlier guides revealed by the United States Section of Commerce. This is a de facto naming common and guide to travellers. Some letter types correspond to several existing scores or https://manueleeczw.blogpayz.com/29418963/the-2-minute-rule-for-types-of-electrical-plugs