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Type 2 Surge Protector Device / SPD For Residential Buildings
Lightning protection measures for residential buildings:
1. Direct lightning protection
In the surrounding houses with high-rise buildings or communication receiving towers and power input poles, independent lightning rods with a height that can protect the building must be installed.
2. Inductive lightning protection
(1) Power protection
Install a single-phase power lightning protection box at the power inlet to ensure that the induced lightning current reaches the amount that the home power grid can adapt at the input end, and other high-voltage currents are discharged to the earth through the lightning protection box.
Install a power lightning protection socket at the power supply of all household wires to ensure that all electrical appliances can work safely and normally when the induced lightning is sent.
(2) Network, monitoring and protection
Install corresponding lightning protection equipment in front of the corresponding network and monitoring equipment.
OBV5-C40
The surge arrestors OBV5-C40-LT meet the type 2 requirement class
according to IEC 61643-11. These devices protect low-voltage
consumer systems from overvoltages of all types and are available
in single-pole to four-pole versions. The use of high-performance
varistors permits a rapid response time and a low protection level,
without any line follow current. If circumstances are uncertain and
there is a risk of fire from an overload, the internal cut-off unit
disconnects the arrestor from the mains if necessary. In addition,
the QR code printed on the arrestor allows disary. In addition, the
QR code printed on the arrestor allows direct access to the online
installation instructions.
Technical Parameters
Model: OBV5-C40 | |||
Maximum continuous voltage AC | Uc | V | 275/320/385/440 |
SPD to EN 61643-11 | Type 2 | ||
SPD to IEC 61643-1 | class II | ||
Nominal discharge current (8/20< s) | In | kA | 20 |
Maximum discharge current (8/20< s) | Imax | kA | 40 |
Voltage protection level | Up | kV | < 1,3/1,5/1,8/2,0 |
Response time | tA | ns | < 25 |
Maximum back-up fuse | A | 125 | |
Temperature range | ϑ | ℃ | -40℃~+85℃ |
Protection rating | IP 20 | ||
Max. cable cross-section flexible (fine-wire) | mm² | 25 | |
Max. cable cross-section rigid (single wire/multi-wire) | mm² | 35 |
Feature&Benefits
1,Protect electric system and on-loading electrical apparatus from
thunder and instantaneous over-voltage.
2,Protect transmission of Ethernet signals with 48V DC / 34V AC
power supply circuits against
lightning induced surges.
3,Enhanced surge protection.
4,For mounting on 35mm DIN rails acc. to EN 60715.
5,It can effectively ensure the equipments work properly.
·Easy installation or retrofit.
·Din-rail mountable.
·Fail-safe /self-protected designRemote indicator (optional) with
3pin NO/NC contact.
·IP20 finger-safe designVisual indicator.
Application
●AC/DC distribution
●Power supplies
●Industrial automation
●Telecommunications
●Motor controls systems
●PLC applications
●Power transfer equipment
●HVAC applications
● AC drives
●UPS systems
●Security systems
●IT/Data centers
Necessity of lightning protection detection:
1.lightning protection detection surge protector can resist
lightning disasters and ensure life safety.
The damage of lightning to buildings can only be avoided through
lightning protection devices. Lightning directly hits buildings or
equipment exposed to the air, and various overhead metal cables
will cause equipment damage, and even more serious fires will cause
people to bring damage to the equipment. Unnecessary property
damage. Professional lightning protection testing companies can do
professional lightning protection. The lightning protection testing
is to check whether the installed lightning protection devices or
structural equipment are reasonable, whether the protection
conditions meet the requirements, and whether the electrical safety
meets the standards. If it fails to meet the requirements, the
lightning protection inspection company will promptly put forward
corresponding rectification opinions;
2.Lightning protection device test results meet national standards.
The detection results of lightning protection devices of well-known
domestic lightning protection inspection companies are based on the
standards of the national professional departments, and the
lightning protection inspection companies also use the relevant
lightning protection technical standards and standards of the
country and various departments as the measurement index.
Professional lightning protection testing companies also have
relatively more testing content. A series of lightning protection
testing software and equipment involved in the detection process
can objectively make standard judgments on lightning protection
work, so the accuracy of the data results is also higher;
How to choose a suitable power arrester:
When choosing lightning arresters to protect different types of equipment in an area, the following factors should be considered comprehensively:
●The intensity of thunderstorms in the area, the number of days of thunderstorms and the parameters of the maximum discharge current and the probability of occurrence;
●The value of the protected equipment;
●The level of impact resistance of the protected equipment;
●The social importance of protected equipment;
●Determine the power surge arrester with different protection voltage UP and discharge current;
Others
Technology SPD parameter(Note:According to user requirement ,can be
customized Uc=140V,440V,550V,voltage range of range of the SPD):
Type No. | Rated Voltage(V) Un | Continuous Voltage Uc(V~) | Standard Discharge Current In(KA) | Max Discharge Current | Protection Level(KA~) | Response Time(ns) |
DGM1(2)-D5 | 220/380 | 275/320 | 5 | 10 | 1.2 | ≤25 |
DGM1(2)-D10 | 10 | 2 | 1.6 | |||
DGM1(2)-C20 | 20 | 40 | 1.8 | |||
DGM13-B30 | 30 | 60 | .2.2 | |||
DGM3(4)-B40 | 10 | 80 | 2.4 | |||
DGM(4)-B60 | 60 | 100 | 2.8 | |||
DGM-N-PE | 220/255 | 40/60 | 60/80 | 1.2 | ≤100 |
Key parameters of power surge protector:
●Maximum continuous withstand voltage Uc (rms):
means that the arrester can work continuously at this voltage value
without affecting its parameters as the arrester. Uc is
non-linearly proportional to the protection voltage Up.
● Maximum discharge current Imax:
Use 8/20μs wave surge arrester once, the maximum discharge current
that can withstand. It can be selected according to the local
thunderstorm intensity Ng (or the average annual thunderstorm day
Td) and environmental factors.
●Residual voltage Ur and protection voltage Up
Residual voltage Ur: Refers to the residual voltage value under the
rated discharge current In.
Protection voltage Up: The protection voltage Up is related to the
Uc voltage and Ur. According to the characteristics of the zinc
oxide varistor, when the Uc value of the selected varistor is high,
its Up and Ur will increase accordingly, such as when the discharge
current is 10kA (8/20μs):
Uc=275V Ur (10kA, 8/20μs) ≤1200V
Uc=385V Ur (10kA, 8/20μs) ≤1600V
Uc=440V Ur (10kA, 8/20μs) ≤1800V