The heart of any home engineering system is a distribution device, it is also called a distribution shield. It is, thanks to numerous devices and components, that transfers current to separate circuits. It not only protects the installation from overvoltage, but also allows you to control, regulate and measure the properties of the chain.
Who should assemble a distribution device?
In power engineering systems of private houses, the so -called distribution shields are designed for nominal currents up to 150 A. Since many outgoing lines depart from them, an experienced specialist should take care of connecting and choosing a box protection. It is not difficult to make mistakes, and the wrong assembly sometimes even leads to a fire. There are other reasons why a certified electrician can encourage. At the time of signing the contract, he is responsible for any shortcomings in the installation. Of course, it is better to choose a company that will perform its work efficiently and reliably, and equip the distribution shield with components that meet all standards.
Basic set of distribution shield
Of course, distribution shields are not only a series of signal lamps informing about the presence of voltage at this connection point. Inside the power supplies we find many components that ensure its proper operation. The most sophisticated requirements of the consumer meets DKC products
The main element of the distribution device consists of protective devices in the form of maximum current and differential current switches. The former are designed to interrupt the continuity of the circuit, when the current in it exceeds a safe value. Thus, they protect connected devices from exposure to possible voltage surges. Different types of switches are used depending on the load in the circuit and the type of equipment that it feeds.
Differential current devices, in turn, are de -energized if the current current is not equal to the rated current. Their reaction in case of violation is immediately thanks to the so -called IO transformer (transformer of Ferranti), who checks the presence of a short circuit or leakage of current to the ground in the protected circuit. This action protects against fire, and also reduces the risk of electric shock when touching.
Safe installation operation would not have been without a disconnector. This is the first component to which the main power cord coming from the cable connector is brought. He plays the role of a circuit breaker, tearing the selected chain or the entire system in case of refusal. Such functionality is also useful during repair or long break in the use of the installation.
The equipment of the distribution device also provides the optimal level of protection against lightning. Due to the arrangement of grounding, the sudden survivors of the voltage that occur during lightning strikes in the transmission line are reduced. An extra charge simply goes to a linear or triangular ground circuit, so this prevents damage to the installation and all devices connected to the network.