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FEXLINK Knowledge: Why does SPD deteriorate? How to tell if it still works?
Many people's understanding of SPD is still that "a lightning protector is installed in the distribution cabinet".
FEXLINK Knowledge: What is the use of lightning strike counter? Why is knowing the number of times not enough?
Many lightning protection systems are equipped with lightning strike counters.
FEXLINK Knowledge: Why do grounding systems change? Why does the grounded state need to be sensed online?
When talking about lightning protection systems, many people first think of SPDs, lightning rods, down conductors and lightning strike counters.
FEXLINK Knowledge: If the lightning protection test is qualified, why does it need online monitoring?
This article is a knowledge article that continues the digital lightning protection series.
FEXLINK Knowledge: Why do wind power, photovoltaic, base stations and data centers need digital lightning protection more?
This article is a knowledge article that continues the digital lightning protection series.
FEXLINK Knowledge: What data does a digital lightning protection system need to monitor?
This article is a knowledge article that continues the digital lightning protection series.
FEXLINK Knowledge: Why does the lightning protection system need event files and closed-loop operation and maintenance?
This article is a knowledge article that continues the digital lightning protection series.
FEXLINK Knowledge: The value of digital lightning protection, why not just "lightning protection"?
This article is a knowledge article that continues the digital lightning protection series.
FEXLINK Knowledge: How to choose intelligent lightning protection monitoring terminal?
Selection of intelligent lightning protection monitoring terminals is not a matter of installing the equipment, connecting a few wires, and uploadi...
FEXLINK Knowledge: How should the lightning protection system health index be established?
Lightning protection system health index is not a matter of installing equipment, connecting a few wires, and uploading data to the platform. It is...
FEXLINK Knowledge: After a lightning strike, what data should you look at immediately?
Data recovery after a lightning strike is not a matter of installing the equipment, connecting a few cables, and uploading the data to the platform...
FEXLINK Knowledge: Why do power distribution cabinets and weak electrical machine rooms need digital lightning protection?
Digital lightning protection for power distribution cabinets and weak motor rooms is not a matter of installing equipment, connecting a few wires, ...
FEXLINK Knowledge: Why do photovoltaic power stations need digital lightning protection monitoring?
Digital lightning protection monitoring of photovoltaic power stations is not a matter of installing equipment, connecting a few wires, and uploadi...
FEXLINK Knowledge: The lightning protection down conductor of the wind turbine blade is disconnected. Why do we need to locate it online?
Locating the broken downline of lightning protection down-conductors of wind turbine blades is not a matter of installing the equipment, connecting...
FEXLINK Knowledge: Why does communication base station need remote lightning protection status monitoring?
Remote lightning protection status monitoring of communication base stations is not a matter of installing equipment, connecting a few wires, and u...
FEXLINK Knowledge: How does the data center incorporate lightning protection into infrastructure monitoring?
Incorporating data center lightning protection into infrastructure monitoring is not a matter of installing equipment, connecting a few wires, and ...
FEXLINK Knowledge: How does the digital lightning protection platform implement alarm classification and work order closure?
The alarm classification and work order closed loop of the digital lightning protection platform is not a matter of installing equipment, connectin...
FEXLINK Knowledge: From smart lightning protection to early warning for electrical safety, what’s next?
From intelligent lightning protection to early warning of electrical safety is not a matter of installing equipment, connecting a few wires, and up...
FEXLINK Knowledge: Why you can’t wait until a fault occurs to deal with electrical hazards？
Many electrical accidents appear to occur suddenly at a certain moment：Equipment burned out、Line tripped、Smoke coming from the cabinet、The socket is hot，even cause fire。But from an engineering perspective，Most risks don’t appear without warning，But gradually in the long-term operation
FEXLINK Knowledge: Why abnormal voltage is an early signal of many electrical hazards？
Many people understand voltage abnormalities，First think about overvoltage and undervoltage。But in a real power distribution system，There are far more manifestations of voltage anomalies than these two categories.。voltage fluctuation、short dip、Three-phase unbalance、Frequent disturbance，may reflect the quality of power supply、load changes or
FEXLINK Knowledge: Why can't we just check whether the current is overloaded when it is abnormal?？
In traditional operation and maintenance，Current risk is often understood as whether overload。Overload does matter，But it is just an obvious manifestation of abnormal current。Many risks precede overload，Passed current waveform、three phase relationship、Impact frequency and load change performance
FEXLINK Knowledge: Why do we need to look at trends in leakage?，Instead of just looking at tripping？
summary：The leakage protection action is already the result of the risk reaching certain conditions.。Really valuable leakage warning，Pay attention to long-term trends in leakage values、Fluctuation pattern、environmental correlation、Load relationships and exception duration，This allows early detection of insulation degradation
FEXLINK Knowledge: Why temperature abnormalities are often an external manifestation of poor contact？
summary：Temperature abnormalities are not just“The device is hot”。In many power distribution scenarios，Terminal loose、Increased contact resistance、Oxidative corrosion and local overload，will be expressed through temperature rise。Temperature warning cannot only look at absolute values，More attention should be paid to the temperature rise trend、burden
FEXLINK Knowledge: Why arc hazards are harder to detect than ordinary overloads？
summary：Arc faults do not necessarily appear as large currents，Traditional protection may not be triggered immediately。series arc、Poor contact arc and insulation damage arc，often intermittent、Waveform distortion、High-frequency components and persistent and repetitive characteristics，Therefore more is needed
FEXLINK Knowledge: Why is series arc more likely to be missed?
summary: series arc occurs in the burst load loop, current is limited by the arrival burst load, and does not necessarily exceed traditional overload protection thresholds. But the local arc temperature is high, continue to reoccur, May pose serious fire risk. Therefore, series arc requires waveform level, Half
FEXLINK Knowledge: Why is it difficult for a single sensor to determine complex electrical hazards?？
summary：Complex electrical hazards often cannot be explained by just one signal。Voltage、current、Leakage、temperature、arc、ground、There is a companion relationship between environment and device alarms。A single sensor is prone to false alarms、Missed or unexplained reasons，multidimensional data
FEXLINK Knowledge: Why do power distribution systems need to start from“Electrical parameter monitoring”towards“status diagnosis”？
summary: Traditional Electrical parameter monitoring can see data such as arrivalVoltage, current, power, Electric energy, power factor and harmonics, but seeing numbers does not equal understanding. The next step in digital power distribution, It is to convert dispersed electrical parameters into equipment health., line risk, burden
FEXLINK Knowledge: Why is Micro-IoT a company that produces data?？
summary：“production data”Not simply collecting data，It’s not about connecting the device to the platform.。Micro-IoT focuses on extracting usable features from electrical signals，Generate risk judgments from running status，Precipitate management value from equipment behavior，Make the data truly
FEXLINK Knowledge: Why does the computer room need to upgrade from traditional lightning protection to digital lightning protection?？
summary: Lightning protection in the computer room is not just about installing a few moreSPD. There are also power cords in the computer room, signal line, communication line, ground wire and a large number of sensitive electronic equipment, Surge risk can enter from multiple routes. The value of digital lightning protection in computer rooms, It's protective gear
FEXLINK Knowledge: Why does the railway system need intelligent lightning protection online monitoring?？
summary: Lightning protection risks for railway systems, It cannot be simply understood as a certain computer room, A power distribution cabinet or aSPDquestion. Station signal room, Communication room, Interval equipment, trackside box, Base stations along the line, video surveillance, power distribution set up facilities and ground system
FEXLINK Knowledge: Why highway electromechanical systems need digital lightning protection online monitoring？
summary：There are many electromechanical system points on highways、Widely distributed，ETCDoor frame、Monitoring pole、variable information board、Tunnel electromechanical、Toll station computer room、The power distribution system and communication equipment in the service area are exposed to the outdoor environment for a long time.。More solutions to traditional lightning protection“Have you
FEXLINK Knowledge: photovoltaic、How to implement integrated intelligent lightning protection for energy storage and new energy stations？
summary：New energy stations usually have large areas、Equipment is scattered、DC side line length、Inverters and box transformers are of high value、Many communication control systems、Energy storage system is sensitive and other characteristics。Pay more attention to traditional lightning protectionSPDWhether to install，Intelligent lightning protection requires further
FEXLINK Knowledge: Why wind farm lightning protection must start from“Lightning strike records”Upgrade to intelligent lightning protection system？
summary: Wind farms are typical high lightning exposure scenarios. High fan blade height, Tower metal structure long, Cabin equipment is complex, box transformer and booster station are responsible for Electric energy conversion and grid connection tasks, Lightning strikes or surge effects may occur along blade lightning protection channels, Tower, catch
FEXLINK Knowledge: Why can't ground resistance be measured by one inspection only?
summary: Ground resistance is often seen as a value in a test report. But in real engineering sites, the ground system will be affected by arrival soil moisture, seasonal changes, corrosion, construction damage, loose connection, and influence of factors such as ground network aging and lightning strike impact. One inspection
FEXLINK Knowledge: Why is the lightning protector not“Just put it on and it's done”？
summary：Lightning arrester is the most common lightning protection system、Also the most misunderstood device。Many engineering projects are equipped with power supplies during the construction phaseSPD、SignalSPD、communicationSPDor dcSPD，The status is normal at the time of acceptance，It is considered that the protection has been
FEXLINK Knowledge: from "Lightning strike count" arrive "Lightning current event diagnosis", what is the difference?
summary: If lightning current monitoring only stays at “Lightning struck several times”, Can only answer whether the event occurred, But it’s hard to answer how strong a lightning strike is, How is the waveform process?, Which points are affected?, whether caused SPDDeterioration, whether the ground status changes, set up
FEXLINK Knowledge: Why alarm classification and ticket closure determine whether a system is truly useful？
summary: After many intelligent lightning protection systems are put online, The platform page looks rich, have set up online status, have SPDAlarm, have Lightning strike records, have ground data, and have various reports. But what really determines whether the system has value is not the amount of data.
FEXLINK Knowledge: How does intelligent lightning protection enter the electrical safety early warning system?？
summary: Intelligent lightning protection cannot just stay inside the lightning protection system. Lightning strike, surge, SPDDeterioration, ground anomaly, equipotential connection catch problem and setup alarm will affect the operation of the power supply system, communication system, control system and key setup equipment. real price
FEXLINK Knowledge: GB 17681-2024 What inspirations do you have for intelligent lightning protection and ground monitoring?
summary：GB 17681-2024《Technical Specifications for Safety Monitoring of Major Hazardous Sources of Hazardous Chemicals》Not just a lightning protection standard，It is a mandatory national standard for the safety monitoring system of major hazardous sources of hazardous chemicals.。It is smart to prevent
FEXLINK Knowledge: How to implement online ground resistance monitoring and intelligent lightning protection system in oil and gas storage tank areas?
Oil and gas storage tank farms are not ordinary electrical sites. In a real tank farm, there are complex electrical connections and safety linkages between tanks, pipelines, loading and unloading dock, pump area, Instrument system, video surveillance, Combustible gas detection, fire protection systems and power distribution systems. (
FEXLINK Knowledge: Why traditional lightning protection companies must upgrade their intelligent lightning protection product lines？
Cover image of public account: Why do traditional lightning protection companies must upgrade their intelligent lightning protection product lines?
FEXLINK Knowledge: How can lightning protectors be upgraded intelligently?
Cover image of public account: How to upgrade existing lightning protection devices intelligently?
FEXLINK Knowledge: How to plan the intelligent lightning protection product line？
Public account cover picture: How should the intelligent lightning protection product line be planned?
FEXLINK Knowledge: How does a lightning protection engineering company move from project acceptance to long-term operation and maintenance services?
Cover image of the public account: How does a lightning protection project move from acceptance to long-term operation and maintenance?
FEXLINK Knowledge: What data do customers need to see when arriving?
Cover image of public account: From data display to risk dashboard
FEXLINK Knowledge: How lightning protection detection companies combine online monitoring to form new businesses？
Cover image of public account: How lightning protection detection companies combine online monitoring to form new businesses;"> 8 min read Read more
FEXLINK Knowledge: Why are lightning protection equipment getting cheaper and cheaper, and Lightning protection data is becoming increasingly valuable?
Public account cover picture: Lightning protection equipment is getting cheaper and cheaper, but lightning protection data is becoming more and more valuable;"> 8 min read Read more
FEXLINK Knowledge: Why is it increasingly difficult to make money from lightning protection projects?？It’s not that customers don’t need it，But you only sold it once
Public account cover picture: Why is it increasingly difficult to make money from lightning protection projects?
FEXLINK Knowledge: Why do customers always feel that lightning protection is“worthless”？Because you didn't explain the losses clearly
Public account cover picture: Why do customers always feel that lightning protection is “not worth the money”;"> 8 min read Read more
Why Equipment Still Gets Damaged by Lightning Even with SPD Installed?
Installing an SPD is not a one-time solution. Selection, wiring, grounding, lifespan, and surge event records all affect whether the lightning protection system is truly effective.
What Is Digital Lightning Protection? Why Traditional Systems Must Be Upgraded
In-depth analysis of digital lightning protection concepts, comparing four major blind spots of traditional systems, and how SPD online monitoring, lightning strike recording, and grounding sensing upgrade protection from device-based to status-based.
Arc Fault and Electrical Fire Risk Awareness Whitepaper
In-depth analysis of Arc Fault causes, electrical Fire Risk assessment methods, AFCD detection Technology, and FEXLINK's multi-dimensional fault diagnosis model — systematically presenting the full-chain Solutions from arc identification to early warning.
Key Points of GB 14287 "Electrical Fire Monitoring System" Standard
Item-by-item interpretation of GB 14287 standard requirements, covering residual current, temperature, Arc Fault and other monitoring parameters, with FEXLINK Electrical Safety monitoring terminals for compliant deployment practices.
Deployment Practice of Smart SPDs in Photovoltaic Power Station Monitoring
Addressing direct and induced lightning risks in PV power stations, introduces T1/T2 Class SPD selection, DC-side and AC-side configuration, SCS remote signaling access, and the full Lightning Current Monitoring Data cloud upload workflow.
Configuration Solutions for Electrical Safety Monitoring Terminals in Large Commercial Complexes
Addressing the characteristics of commercial complexes with many distribution nodes and complex business formats, provides layered and graded monitoring architecture, key circuit selection, and FEXLINK Cloud multi-tenant operations practices.
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Anti-Interference Design of RS485 Communication Protocol in Industrial Environments
Systematically summarizes engineering practices for RS485 bus anti-interference in industrial sites from four dimensions: isolation, shielding, grounding, and terminal matching, with measured waveforms and bit error rate comparisons.
Interpretation of GB/T 14285 "Technical Regulations for Relay Protection and Safety Automatic Devices"
Item-by-item interpretation of Technical regulations for relay protection and Safety automatic devices, outlining selectivity, speed, and sensitivity indicators to support compliant operations and Solutions design.
Modbus TCP vs RTU: Protocol Comparison and Selection Guide
Compares Modbus TCP and RTU from four dimensions: frame structure, addressing mode, Real-Time performance, and networking cost, providing selection recommendations for different industrial scenarios.
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FEXLINK Business Scope
FEXLINK specializes in smart lightning protection and electrical safety, offering a product portfolio covering lightning protection, lightning online monitoring, lightning protection online monitoring, lightning arrester, intelligent lightning arrester, lightning arrester monitoring, grounding resistance, grounding monitoring for smart lightning protection scenarios, while addressing digital distribution, smart distribution, electricity meter, carbon neutral, industrial internet, carbon asset for digital business, helping enterprises achieve safe, efficient and low-carbon energy management.