SY Cables in Electrical Installations
SY cables and BS 7671 – Can SY cables be used in electrical installations?
Types of RCDs
RCD types (AC, A, A-APR, B, B+, F) symbols and their meanings with example uses.
Y Plan Wiring Diagram
Y Plan wiring diagram for fully pumped central heating & hot water systems.
S Plan Wiring Diagram
S Plan wiring diagram for fully pumped central heating & hot water systems.
Maximum Demand Calculator
Calculate the Maximum Demand with this new cloud software.
How to Wire a Light Switch
Light switch connections and wiring diagrams for 1 way, 2 way and intermediate light switches for UK wiring colours.
Bathroom Zones
Bathroom zones and the specification and minimum requirements of electrical equipment within a room containing a bath or shower.
BS 7671 Reference Methods
Installation Reference Method table for your electrical certificates & determining the current carrying capacity of a cable.
Protection Against Exceeding Cable Limiting Temperature
Calculate how long a cable will take to reach its limiting temperature under fault conditions.
AFDD Max Zs Values
Here we answer a common question we keep getting asked: What is the max Zs for AFDD’s?