Resistor Colour Codes
A complete guide to resistor colour codes and calculating resistor resistance values.
Supervision Records
Supervision records for electricians, be prepared for your next annual CPS assessment.
BS 7671 Amendment 4
BS 7671 Amendment 4 draft is open for public comment, if you would like to have your say then now is your chance. Deadline: 3rd November 2024.
Safe Isolation Procedure – A Complete Guide
A guide to the Safe Isolation Procedure for electrical circuits.
EICR Code for Unidirectional RCDs
EICR coding guidance for Unidirectional RCDs and MCBs in existing electrical installations.
BS 7671 Amendment 3 2024 Download
Download your free copy of BS 7671 2018 Amendment 3 2024 PDF + details of the changes.
BS 7671 Knowledge Test
Test your electrical knowledge and familiarity of BS 7671 with these BS 7671 sample questions quiz.
Electrical Installation Condition Report (EICR)
Every thing you need to know about Electrical Installation Condition Reports for Landlords, EICR regulations, report codes and reporting form templates.
Solar PV Voltage Drop Calculator
DC voltage drop calculator for calculating the solar PV string DC voltage drop.
Impact Drivers and Consumer Units
A explanation why you SHOULD NOT use an impact driver to tighten terminals within a consumer unit.