Electricians perform various test in order to issue an electrical certificate. Below are mentioned the most common methods they perform on the day which you may want to keep as a reference.
- Visual Testing- In order to identify any visual faults or problems a visual testing is conducted before the testing sequence begins.
- Dead testing-
- Continuity testing: This test Is performed to check if there are any badly connected conductors (wires) OR NOT
Insulation resistance testing: This test makes sure that the electrical insulation OR the material surrounding the conductors is in place or faulty.
Polarity: This test checks whether all that the connections are connected in the right sequence.Earthing arrangement testing: It make sure that the earthing arrangement satisfies with all the regulations and that all connections are proper.
3. Live testing – Earth fault loop impedance testing: this test checks whether the fault occurred or not,it ensures that the system meets all the requirements to cause a disconnection of the supply within the time limit specified. Time limit may be calculated depending on the installation
4. RCD testing: RCD’s and RCBO’s are automatically fitted in all the modern electrical systems, these devices responds to electricity lacking from the circuit or installation like when a person is gets an electric shock the electricity passes through his/her body to the ground (earth).
5. Coding – The codes used helps to find if there are any non-compliances or issue with the electrical installation and are numbered C1 to C3. These codes are entered on the Electrical Installation Condition Report, along with the clear description of the nature of the fault, and will state whether it will be ‘Satisfactory’ or ‘Unsatisfactory’ report applied to the installation.
6. Code C1 ‘Danger present’: any risk of injury requires an immediate remedial action in order to remove the danger.
7. Code C2 ‘Potentially dangerous condition’:only the nature of problem decides whether Urgent remedial action is required or not.
8. Code C3 ‘Improvement recommended’ This code signifies that the installation is not complying with the current set of regulations but does comply with the previous set of regulations and so is deemed to be safe although this safety can be improved upon.