Steps For Selecting A Surge Protector
The selection of surge protective device in Section 6.2 of the national standard GB/T 18802.12 includes the following six steps: 1. Select the Uc.UT.In.Iimp.Imax of the surge protector: (1) Maximum co
How To Select Surge Protector For Distribution Box On Roof Of Building
The rooftop distribution box of a building belongs to the LPZ0B zone in the lightning protection zone. So how to select the surge protector for the rooftop distribution box of the building? What model
Surge Protector Selection - Spd Current Value Selection
Surge protectors are generally connected in parallel to the main circuit. They usually have high impedance properties. When TOV appears in the circuit, they will conduct and discharge surge current. T
Low Voltage Lightning Protection Surge Protector Specification Model Parameter Selection - Multi-level Surge Protector
(1) Article 3 of Section 5.4.3 of GB 50343-2012 stipulates that for AC power supply lines entering buildings, at the junction of LPZ0A or LPZ0B and LPZ1, such as the main distribution box of the line,
Low Voltage Lightning Protection Surge Protector Specification Model Parameter Selection - Secondary Surge Protector
(1) Article 4.5.4, Article 3 of the national standard GB 50057-2010: A surge protector of Class II test should be installed on the power supply side of the switch in the distribution box. Its voltage
Low Voltage Lightning Protection Surge Protector Specification Model Parameter Selection - First Level Surge Protector
(1) Article 8 of Section 4.2.1 of GB 50057-2010: A surge protector of Class I test shall be installed at the main distribution box where the power supply is introduced. The voltage protection level of
Spd Low Voltage Lightning Surge Protector Selection, Low Voltage Lightning Surge Protector And Other Spd Low Voltage Lightning Surge Protectors
Some applications require two or more surge protection device low-voltage lightning surge protectors to reduce the electrical stress of the protected equipment to an acceptable value (lower Up) and re
Selection Of Voltage Protection Level Up
When selecting the appropriate voltage protection level value of the surge protective device low-voltage lightning surge protector, the surge tolerance of the protected equipment (or the impact immuni
Coordination Between Spd Low Voltage Lightning Surge Protector And Other Equipment
(1) Under normal conditions, the continuous working current (Ic) shall not cause any personal safety hazards (indirect contact, etc.) or interfere with other equipment. (It is advisable to select a co
Expected Life And Failure Mode Of Spd Low Voltage Lightning Surge Protector
(1) The expected life of SPD low-voltage lightning surge protector: mainly depends on the probability of a surge exceeding the maximum discharge capacity of the SPD low-voltage lightning surge protect
Spd Low Voltage Lightning Surge Protector Model Specification Parameter Selection Installation Location
(1) Protection distance: In order to determine the location of the surge protection device low voltage lightning surge protector (at the entrance, near the equipment, etc.), it is necessary to know th
Select Uc.ut.in.iimp.imax Of Spd Low Voltage Lightning Surge Protector
(1) Maximum continuous operating voltage Uc: The maximum continuous operating voltage Uc of the surge protective device low-voltage lightning surge protection device should be greater than the continu
Selection Of Lightning Surge Protectors In Special Situations
The electrical and electronic systems in buildings are very sensitive to transient, high-energy surges caused by lightning discharges. In order to effectively protect various electrical information sy
Application Of Surge Protector In Tt System
The TT power supply system refers to a protection system that directly grounds the metal shell of the electrical equipment, which is called a protective grounding system, also known as a TT system. Th
How Do We Distinguish Between Class B Surge Protectors And Class B+c Surge Protectors?
The lightning protection system generally uses the first-level surge protector, second-level surge protective device and third-level surge protection device of Class I, II and III tests. In addition,
How Do We Choose A Surge Protector For The Rooftop Distribution Box?
Article 3 of Section 5.4.3 of GB 50343-2012 stipulates: For AC power supply lines entering buildings, at the junction of LPZ0A or LPZ0B and LPZ1 areas such as the main distribution box of the line, a
Quality Requirements That Surge Protectors Need To Meet - Basic Requirements
Products that meet the requirements of GB 18802.1- and GB /T 18802.21 and are tested by nationally recognized testing laboratories should be used. The location of the surge protector installation and
See How The National Standard Selects Surge Protectors - Six Analyses
The national standard GB/T 18802.12, Section 6.2, includes the following six steps for the selection of surge protective device: 1. Select the Uc.UT.In.Iimp.Imax of the surge protector: (1) Maximum co
Surge Protector Installation Precautions - Six Points
1. Long-line oscillation effect: IEC61643-12 "Surge Protectors for Low Voltage Distribution Systems - Part 12: Selection and Use Guidelines" states: The impact of oscillation on the protection distanc
How Should We Choose Surge Protectors In Floor Distribution Boxes - Taking National Standards As An Example
Article 3 of Section 5.4.3 of the national standard GB50343-2010 stipulates: At the junction of subsequent protection areas such as distribution boxes of distribution lines and distribution boxes of e
What Is The Best Up Value For A Surge Protector?
In the parameters of surge protectors, what is the Up value and how to choose it? National Standard 18802.12 Section 3.1.4 defines: Voltage protection level (Up): It is a performance parameter that ch
How Do We Correctly Choose The Uc Value Of The Surge Protector - Professional Guidance
In SPD surge protectors, there are various nominal voltage values, such as: abbreviations Un, Uc, and Uo, etc. What do they mean? What is the relationship between them? Let's take a look! According to
The Difference Between Class B Surge Protector And Class B+c Surge Protector - A Must-read Manual For Selection
Do you know what a surge protector is? In modern electrical equipment, a surge protector is a necessary electrical component that can protect electronic equipment from external overvoltages, such as l
Application Of Surge Protector In Tt System - Choose The Absolute Effect
Application of surge protector in TT system, TT power supply system refers to the protection system that directly grounds the metal shell of electrical equipment, which is called protective grounding