This article serves as an introduction to transformers and the theory behind them. What is a transformer? A transformer is a device that increases or reduces the voltage of an alternating (AC) current. What is the principle of Mutual Inductance? A transformer works on the principle of Mutual Inductance. This is the principle that a change in the current of one coil on a conductor will affect the current…
Technology continues to evolve in the field of low-voltage power distribution and protection. 30 years ago the installer was typically faced with the decision on what size fuse wire to use. Now they must consider which MCB or RCBO to install, with even more choice than ever on what levels of protection against the effects of electrical fault to afford. Released in 2018, BS 7671: Requirements for Electrical Installations (IET…
A report comparing the UK and Australian electrical contracting industries has been published by JIB Apprentice Exchange winners George Stickings and Josh Horton. The two young men, who spent six weeks working in and around Brisbane, provided a detailed analysis on areas such as working practices, skills and competence, the role of apprentices and the industrial relations system. The main recommendations presented in their report were: 1) The belief that…
The STAGE 2 of the NICEIC and ELECSA Apprentice of the Year Competition 2018 has kicked off in London today… 9 more locations to go before we find our final 8 contestants for the grand final!