Free Inspection and Testing Calculations Sampler: 10 Worked Questions
Free: 10 inspection and testing calculation questions, each with a full worked answer.
A free 7-page A4 sampler from Inspection and Testing Calculations. One question from each of 10 topics, with a squared working box and the formula, the numbers and the result shown for every answer.
- Continuity of protective conductors and ring final circuits
- Earth fault loop impedance and temperature adjustment
- Prospective fault current, insulation resistance and RCD testing
- Voltage drop, cable selection and more
Want all 200 questions? The full workbook (A4 PDF, 128 pages) is here: Inspection and Testing Calculations.
Written by a City & Guilds 2391-51 qualified electrician.
Independent publication. Not produced, endorsed or approved by City & Guilds, the IET or BSI. Contains no assessment questions and does not reproduce BS 7671 text. Conductor resistances, voltage-drop figures and some cable current ratings are typical published values for copper cable, given for practice; no figure may be used for design, installation, inspection, testing or certification.
