Today it is impossible for life to continue without electricity. Almost all of the equipment used during the day needs electrical energy while working. Household appliances are almost all electrical. Electricity is of vital importance in human life today. From transportation to health services, from the education to the production of foods, the operation of the systems in all areas is based on electricity. Countries must produce their own electricity. Today, even the wars can be considered because of the energy sector.

From the generation of electricity to reaching homes and workplaces, there are many stages. A large part of the electricity carried by energy lines is used in residences and workplaces. Electricity used in agriculture, industry, communication, transportation, medicine and many other fields is also an important indicator of contemporary life.

Electrical energy is derived from natural resources, but natural resources are not limitless. These resources are exhausted every day. Therefore, efficient use of electricity and excessive use should not be used. Turning off the electricity means life stops.

Electricity, which is an energy type, has three types of application areas: light, heat and motion. Electric is not a visible and hand held energy. However, this is manifested by its applications. The most widely used type of energy in the world is electrical energy. Electrical energy is produced in power plants and delivered to consumers by using various conductors. It is very easy to transmit. Since it does not leave any residues, it does not create environmental pollution.

However, the greatest danger of electrical energy is that it can cause serious injuries and deaths and cause financial losses. The most important issue in the use of electricity that makes this life easier but which has a vital risk is the attention.

Electrical energy, electric shock, fire and similar hazards may occur. Therefore, the Low Voltage Directive 2006 / 95 / EC has been issued by the European Union. This directive relates to the safety of electrical appliances. In our country, the Low Voltage Directive (2006 / 95 / AT) has been issued based on this directive. This regulation covers the following devices: electrical devices used in explosive atmospheres, electric parts of freight and human elevators, electrical devices for radiology and medical purposes, plugs and sockets used in households, electricity meters, electric fence controls, radio-electrical interference and the European Union countries. special electrical equipment used in ships, aircrafts and railways.

The Low Voltage Directive is mainly applied to electrical appliances that use or produce 50 volts to 1000 volts and 75 volts to 1500 volts.

The safety of all devices using electrical energy is verified by electrical tests. These tests are carried out in laboratories providing services (accredited) based on the authority they have received from national and international accreditation bodies. On the one hand, while testing the principles of existing legal regulations, the standards published by national and international organizations are taken into consideration.

The main electrical tests carried out in this context are:

• LVD test
• EMC test
• Grounding tests
• Insulation resistance test at ambient temperature
• Insulation resistance test at maximum conductor operating temperature
• Voltage test (vessel)
• Surface tension test
• Long-term durability test of insulation to DC voltage
• Voltage test (cable)
• Lightning impact test
• Conductor resistance measurement
• Puncture tension test
• High voltage test
• Transfer impedance and shield attenuation test
• Label strength test
• Protection against access to tensioned sections
• Input power and current test
• Heating test
• Leakage current test
• Electrical resistance test
• Moisture resistance test
• Unusual work test
• Structural testing
• Discharge test
• Tensile test
• Insulation test
• Ball pressure test
• Glow wire test
• Test against surface leakage