We are a Bournemouth based N.I.C E.I.C electrical company who have been trading for 18 years and have a vast experience in all aspects of electrical installations.
We finish our projects on time, within budget, with a minimum of fuss and without any stress. It is for these reasons we feel the need to let you know about us and our services!
Testing & Inspection
All testing is carried out under the IEE”s Code of Practice for In-Service Inspection and Testing of Electrical Equipment and conforms to HSE guidelines.
Before any testing commences on an appliance, our Bournemouth engineer will assess the close environment to make sure testing can be carried out safely and with no risk to either themselves or people working in the environment.
Inspection and Testing is carried out in several stages and here is a breakdown detailing the various tests which may be carried out on electrical appliances during inspection & testing:
1) Preliminary Visual Inspection
Visually checking the appliance for safety or damage to the plug, fuse, wiring, cable and protective case of the appliance. Our engineer will ask themselves questions such as:
- The users – are they satisfied that the equipment works properly?
- The environment – is the equipment suitable for its environment?
- Suitability for the job – is the equipment suitable for the work it is required to carry out?
2) Earth Bond Testing
- The safety of certain appliances depends upon a connection with the earth for its safety.
- A test is carried out using electrical test equipment to ensure a safe earth is present in the appliance.
- The test is to ensure that the connection between the earth pin in the mains plug of the appliance and the metal casing of the appliance is satisfactory and of sufficiently low resistance.
3) Insulation Testing
- A test is carried out using electrical test equipment to ensure the insulation resistance in the appliance is at a safe level.
- This test is used to verify that adequate insulation exists between the mains supply pins and the earth.
4) Substitute Leakage Test
- The sub Leakage Test applies a nominal voltage of 40V AC RMS to the appliance and is applied between the earth pin and both the live and neutral pins of the supply plug.
- This test can prove useful in situations where neither conventional insulation nor flash tests are acceptable methods of testing the insulation of the appliance.
5) Flash Testing
- This test is rarely carried out and only then on certain appliances such as power tools.
- A test is carried out to measure the insulation of an appliance if a very high test voltage is applied to it.
- This test is used to determine that the insulation is of sufficient strength to prevent breakdown, particularly where high transient voltages are likely.
6) Earth Leakage Measurement
- A test is carried out to monitor the current flow through the earth lead of the appliance.
- The leakage test shows the current being lost through leakage as the difference in the currents flowing in the live and neutral conductors. This difference is the total leakage away from the appliance.
- This test is of particular value when an appliance incorporates a number of sequences, which may change the electrical characteristics of the appliance during its operation.
7) Load Test
- A test is carried out applying a voltage through a current limiting resistor to the mains supply plug and checks that the current flow will not be excessive when full voltage is applied to the appliance.
8) Touch Leakage Test
- The touch test displays the current that would flow if a person touched the appliance.
- The electrical test equipment detects any current flowing in the earth bond lead and indicates the potential leakage through a metal panel.
9) Functional Check
A test is carried out to ensure that the appliance is working correctly and basically does what it is supposed to do in the right environment.