A villanyszerelés és -javítás az épületek vagy szerkezetek elektromos rendszereinek telepítését és karbantartását jelenti. Ez magában foglalja a vezetékek, konnektorok, kapcsolók, világítótestek és egyéb elektromos alkatrészek telepítését, amelyek az elektromosság biztonságos és hatékony használatához szükségesek. A villanyszerelés első lépése a rendszer elrendezésének megtervezése és kivitelezése, figyelembe véve az épület sajátos igényeit és követelményeit.

Network building and troubleshooting is the process of creating and maintaining a network infrastructure that allows devices to communicate and share resources with each other. This can include both physical and virtual components such as routers, switches, cables, and servers. The goal of network building is to establish a reliable and efficient network that meets the needs of the users. The first step in network building is to plan and design the network. This involves determining the layout, size, and type of network that will best suit the organization's

Strong and weak current systems are two types of electrical systems that are used to power various devices and appliances. These systems differ in terms of the amount of electricity they can handle and the type of devices they are designed for. A strong current system, also known as a high-voltage system, is used to transmit large amounts of electricity over long distances. These systems are typically used for power distribution to homes and businesses, as well as for industrial and commercial applications. Strong current systems are characterized by high