How To Install A Surge Protector
When a new project is built, the design institute will consider the national standards very carefully when designing lightning protection on the drawings, and the design is also standardized. However, in the actual construction process, due to the lack of attention to details, lightning protection is often ineffective, and even lightning strikes and injuries occur. So how do we install surge protectors on site in the project? What details should be paid attention to?
1. According to 5.4.3.3: For AC power supply lines entering the building, at the junction of LPZ0A or LPZ0B and LPZ1 areas such as the main distribution box of the line, a surge protective device of Class I test or a surge protector of Class II test should be installed as the first level of protection; at the junction of subsequent protection areas such as the distribution box of the distribution line and the distribution box of the electronic equipment room, a surge protection device of Class II or Class III test can be installed as the latter level of protection; the power port of special and important electronic information equipment can be installed with a surge protector of Class II or Class III test as fine protection. Information equipment using DC power supply should be equipped with an adapted DC power supply line surge protector depending on its working voltage requirements.
When the complete set factory is producing, it should strictly select different levels of surge protectors according to the drawings and national standards. It should not install surge protectors in accordance with the specifications in order to save money.
2. Section 5.4.3.6: When the line length between the voltage switch type surge protector and the voltage limiting type surge protector is less than 10m, and the line between the voltage limiting type surge protectors is less than 5m, a decoupling device should be installed between the two levels of surge protectors. When the surge protector has the function of automatic energy coordination, the line length between the surge protectors is not limited.
How to install the surge protector? If the surge protector selected for the project is not an energy automatic coordination type, the complete set factory should fully consider the installation distance when installing the surge protector, and a decoupler must be installed between the two levels of surges, otherwise it will cause lightning protection failure.
3. Section 5.4.3.8: When the power surge protector is installed at various locations, the connecting wires of the surge protector should be short and straight, and the total length should not be greater than 0.5m.
How to install a surge protector? The total length of the surge protector cable must also be strictly followed. If the cable for installing the surge protector is too long, it will not limit the voltage and will cause great damage to the protected equipment behind it.
