Fault Loop Impedance Calculator !free! File

| Supply type | Typical Ze (Ω) | |-------------|----------------| | TN-S | 0.2 – 0.8 | | TN-C-S (PME) | 0.35 max | | TT | 10 – 20 |

A calculator simplifies the verification process by automating the lookups required by standards like BS 7671. Most calculators require the following inputs: fault loop impedance calculator