Architectural Electrician Knowledge

Author: Qi Zhengmin
Publisher:
Publish Date: 2004-05-01
Features: This book is one of the sets of professional management personnel qualification training materials for construction enterprises, designed for training construction machinery operators and safety personnel. It can also be used by other individuals to learn basic electrical and electronic knowledge. Based on the principles of job training, the book focuses on small and medium-sized construction machinery and general construction sites, introducing commonly used practical electrical and electronic knowledge as well as necessary theoretical knowledge. It strives to reflect new technologies, equipment, standards, and specifications, aiming for clarity and ease of understanding. Each chapter includes a summary and exercises. The symbols in this book follow the new symbols specified by national standards. Symbols are divided into project designators and physical quantity symbols: When a symbol represents a specific electrical device, equipment, terminal, or wire, it is treated as a project designator, using uppercase bold letters and numbers, with the numbers aligned with the letters, such as motor MLM2, three-phase equipment terminal ULVLW1, and three-phase wires L1, L2, L3; When a symbol represents a physical quantity, it is treated as a physical quantity symbol, using italic letters and numbers with subscripts, such as resistors RhR2, capacitors C1, C20. Project designators are generally used in the preparation of technical documents; textbooks (especially those on electronic circuits) typically use physical quantity symbols. Due to the significant differences across regions, this book may not fully meet the needs of all areas. Local adjustments and deletions can be made based on actual conditions.