AFME-NE-14 Reading Electrical Drawings and P&IDs
How to find your way round the drawings that explain a machine. Covers electrical schematics, device tags, cross-references, a simple motor circuit, and P&IDs with instrument tag codes, with an illustrated P&ID example. Part of the AFME Apprentice and Early Careers Series. Written for the UK: UK health and safety law, UK food law and HSE guidance.
What is included
- AFME-NE-14 Reading Electrical Drawings and P&IDs (PDF) - Schematic page and column references - Device tag letter table - Reading a direct-on-line motor circuit - P&ID symbols and instrument tags, with an illustrated example - Common mistakes - UK law and standards references - Clear guide-only disclaimer: your site procedures, permits and risk assessments always come first
Who this resource is for
Apprentices and engineers learning to fault-find from drawings, and mentors teaching them.
How to use this resource
1. Read the guide with a set of your own machine's drawings to hand. 2. Pick one motor and trace it from isolator to motor on the drawings. 3. With permission, find the same parts in the panel by their tags. 4. Mark up any drawing that does not match the machine and hand it to your controls engineer.
