Schedule of test results

The total impedance of the earth-fault-current loop at a point in an installation, including the supply and the installation's fault-return path. For many circuits, Ze plus R1+R2 is a useful approximation, with conductor temperature and measurement conditions taken into account. The result must be assessed against the actual protective arrangement and required disconnection conditions.

A measure of how strongly insulation opposes current between parts intended to be electrically separated, usually expressed in megohms. An insulation-resistance instrument applies a DC test voltage. Connected electronics, moisture and contamination can affect the method or reading; an unexpected result needs investigation. A single satisfactory result does not establish every aspect of an installation's safety.

R1+R2 is the combined resistance of a circuit’s line conductor (R1) and circuit protective conductor (R2) along the path being checked, measured in ohms during dead testing. The result helps verify protective-conductor continuity and, with the external earth-fault-loop impedance Ze, assess the circuit’s Zs.

The checklist attached to an EIC or EICR showing what was inspected; the A4 model forms mostly title it Schedule of Inspection. On an EIC, each item is ticked or marked not applicable. On an EICR, each item gets an outcome: acceptable, C1 or C2, C3, FI, not verified, limitation or not applicable. The certificate or report isn't valid without it.

The certificate for electrical work that goes beyond minor works. That means a new installation, an addition or alteration with a new circuit, or a replacement consumer unit or distribution board. It records the design, construction, inspection and testing, it's only valid with its schedules attached, and the original goes to the person who ordered the work. It's a record of that job, not proof that anyone is qualified or registered.