The Differences Between What Electrical Engineers Do and What Electricians Generally Don’t

Electrical engineers and electricians play crucial roles in the world of electrical installations, but their responsibilities and skill sets differ significantly. While electricians focus on the installation and maintenance of electrical wiring, electrical engineers are responsible for the design, analysis, and troubleshooting of power systems and electronic circuits. This article explores the distinct tasks and expertise required by electrical engineers that electricians often do not perform.

Design Responsibilities of Electrical Engineers

Electrical engineers are entrusted with designing power systems and electrical installations that are both efficient and safe. Their tasks include:

Designing Amplifiers and Transistor Circuits: Engineers develop complex electronic components and circuits that are used in various applications, ranging from audio processing to telecommunications. Designing Electric Power Plants and Distribution Grids: They are involved in the planning and construction of power plants and the distribution grids that deliver electricity to residential and industrial consumers. Designing Power Supplies: Engineers design power supplies that convert and regulate electrical power to meet specific requirements. Creating Electric Motors: They design and develop electric motors used in a wide range of applications, from household appliances to industrial machinery.

The Extent of Electrical Engineers' Involvement in Large-scale Projects

Electrical engineers are often responsible for the overall design of large-scale projects, such as the expansion of a coal washery that I worked on back in 2007. Their responsibilities include:

Designing the electrical installation from the switchroom to the conveyor motors. Selecting appropriate cable sizes and ladder configurations. Implementing circuit protection measures. Collaborating with firms that design switchrooms. Making on-site modifications to plans based on project requirements.

Electrical engineers don't just follow local wiring rules; they are the ones who write and develop these rules. This is a key difference between the roles of electrical engineers and electricians. For instance, they may be involved in deciding whether a normally closed switch or a normally open one is needed in a specific scenario, based on the circuit requirements and safety standards.

Specialized Calculations

Electrical engineers are required to perform specialized calculations, such as those involving voltage drop. These calculations are critical for ensuring the efficiency and safety of electrical systems. While most electricians rely on charts and books, engineers use spreadsheets with precise formulas to perform these calculations. This level of precision is vital in complex projects where even small errors could lead to significant issues.

Theoretical vs. Practical Aspects

While electricians focus on the practical aspects of installation and maintenance, electrical engineers delve into the theoretical underpinnings of electrical systems. They:

Design and Analyze: They create and analyze detailed electrical systems that can meet specific requirements. Thrive on Complex Theory: They work on advanced theoretical concepts and develop new technologies to improve electrical systems. Ensure High Standards: They adhere to strict safety and performance standards, ensuring that electrical installations are safe and efficient.

Electricians, on the other hand, focus on the practical implementation of these designs. Their primary role is to turn the blueprints and specifications into functional electrical installations. This includes:

Construction and Installation: Electricians install the electrical systems according to the designs created by engineers. Maintenance and Repair: They maintain and repair existing electrical systems to ensure continued functionality and safety. Facilitate Commissioning: They play a crucial role in commissioning new electrical installations, ensuring they function correctly and safely.

Though both professions are crucial to the functioning of electrical systems, they require different levels of education and experience. Electrical engineers are typically required to have a degree in electrical engineering, while electricians usually complete apprenticeships and certifications.

Conclusion

In summary, while electricians are skilled in installing and maintaining electrical systems, electrical engineers are responsible for the comprehensive design and theoretical aspects of the systems. Their unique expertise ensures that electrical installations are safe, efficient, and compliant with industry standards.