The IET On-Site Guide
What it covers
What it means for our calculators
Where to read it
Calculators that use it
Cable size calculator
Example: Smallest size that passes: 6 mm² (indicative)
EV charger load calculator
Example: Needs load management or a DNO check (total 77.2 A on a 60 A fuse)
Maximum demand and diversity calculator
Example: Maximum demand: about 70.6 A after diversity (indicative)
Max Zs and expected Zs calculator
Example: Expected Zs: 1.05 Ω (indicative)