Anyone who works with electricity needs to be able to read industrial electrical prints. No matter what industry you are in, if your workers deal with electricity, they should master the skill of reading and interpreting electrical blueprints, construction blueprints, and architectural electrical drawings.
For instance, an architect who designs a project works with a number of consultants creating a set of blueprints. At least one of these sets will be the electrical blueprints, showing the proposed construction of the electrical system. The drawings will show light switches, receptacles, wires, light fixtures, and anything else that must be powered by electricity.
One of the first things a user of electrical plans must learn is how to interpret all those electrical signs, lines, and symbols used in blueprints. They may seem very mysterious at first, but most users become adept at interpreting the markings quickly. Mastering the symbols will help the reader of the plans increase project efficiency by deciphering and comprehending symbols accurately and effortlessly.
Standardized symbols are to be found in all construction plans and specs so that users will maintain consistent interpretation of the plans, which helps them place electrical systems correctly. The National Electrical Contractors’ Association issues a publication, NECA 100, Symbols for Electrical Construction Drawings, as a resource for standardizing the symbols, and assuring consistency of use. NECA 100 is commonly used in apprenticeship programs to train electrical workers in blueprint reading.
Keys to help interpret plans are always included in architectural, construction, or electrical drawings. Knowing where the keys are will help the user understand the plans. Here are some additional tips on understanding these blueprints.
Drawings for most electrical systems in commercial, industrial, and bigger residential projects typically have the following:
Workers in a diverse range of jobs can profit from the knowledge of reading electrical blueprints. If your operation has employees in these roles, you may want to consider providing the training:
You should also consider cross training multi-craft personnel in how to read electrical blueprints.
A typical training teaches students proper interpretation of electrical drawings and construction blueprints. Students also learn how to apply National Electric Code (NEC) compliance rules, and how to look for errors. Trainings generally offer examination and discussion of basic electrical concepts, including voltage drop, short-circuit analysis, conductor fill, kVA ratings, and service calculations.
Typical topics that might be covered are:
If you’re convinced your employees could benefit from learning to read electrical prints properly, why not contact NTT and learn about our Electrical Print Reading seminar? For more information and to set up a training seminar, contact NTT today.
NTT Training Inc. has been accredited by the Accrediting Council for Continuing Education & Training (ACCET). ACCET accreditation serves the interests of companies, agencies, and the public through the establishment of standards, policies, and procedures in conjunction with an objective third-party professional evaluation designed to identify and inspire sound education and training practices.