Overview
EPP series AC power supply lightning protector consists of several
single lightning protection chips, which can be freely combined
into single-phase or three-phase protection to meet the
requirements of different power distribution systems and prevent
damage to low-voltage equipment from induced overvoltage or
operating overvoltage. epp40t is usually used for three-level
protection.
Technical parameters
Model EPP40T
**** Continuous working voltage Uc 385VAC
SPD test category T2
Rated discharge current In 20kA
**Maximum discharge current Imax 40kA
Voltage protection level rise 1.8kV
Voltage protection level rise (In=5kA) 1.2kV
Applicable power grid 220V/380VAC (50Hz)
Dimension 74mm×88mm×74mm
With visual warning indicator, aging heat release and short circuit
overcurrent release function, 35mm standard rail mounting Site conditions before installation
1,There is a reliable grounding system, and the grounding
resistance of the distribution cabinet's grounding pile (strip) is
measured (SPD installation), and its resistance should meet the
national standard.
2,Space should be left in the distribution cabinet for SPD
installation.
Note: L is the fire wire, N is the zero wire, E is the ground wire.
Precautions after installation
1,Check if the air switch is turned off and carry out to make sure
the SPD is in working condition.
2,Do not install in thunderstorm.
Maintenance
This product is installed in parallel in the line, and its
operation should be checked regularly, especially after
thunderstorms. The inspection is divided into appearance inspection
and performance test.
Appearance inspection. Each lightning protection module has
deterioration indication. When working normally: the indicator is
green; after aging: the indicator goes out. the SPD should be
replaced in time after aging.
Performance testing. According to the national lightning protection
code, test at least once a year, and measure V1mA and IL≤20μA of
L-PE and N-PE respectively with lightning protection element tester
as qualified.
Company Information Company ProfileHunan Hertz-Ohm Engineering Group Co., Ltd. (referred to as Hunan
Heou) is a comprehensive Hunan Hertz-Ohm Engineering Group Co., Ltd. (referred to as Hunan
Heou) is a comprehensive engineering consulting company established
in Changsha in cooperation with Heilongjiang Hengdian Lightning
Protection Engineering Co., Ltd. Group. The main purpose is to
consolidate the original business content of Hengdian Lightning
Protection Company to South China, and to increase and promote new
engineering consulting and management business scope. The company's
service areas involve electric power, mobile communication, wind
power, solar energy, chemical petroleum, national defense and civil
intelligent buildings, and industrial control fields. |
