Surge protective devices (SPDs) protect electronic equipment from surges caused by lightning strikes and switching processes in electrical networks. SPDs are key components in protection systems because they effectively absorb and dissipate excess energy, preventing damage to connected equipment.
SPD Types
- Type 1: Used on input distribution boards, protect against direct lightning strikes.
- Type 2: Installed on sub-distribution boards, provide protection against residual overvoltages.
- Type 3: Installed directly in front of end users, such as computers and home appliances.
Working Principle
SPDs operate on the basis of non-linear components, such as varistors and gas discharge tubes, which instantly reduce the voltage to a safe level. The device automatically restores its properties after the overvoltage is removed.
Selection and Installation
The correct selection and installation of SPDs is critical for effective protection. It is recommended to consult with specialists to analyze operating conditions and select optimal solutions. This will help ensure uninterrupted operation of electronic equipment and minimize the risk of damage from surges.
Source of information: https://enext.ua/uk/services/pristro-zakhistu-v-d-mpulsnikh-perenaprug/.
