Electrical Power System Lightning New Power 20ka 40ka Surge Protector
Surge protector, also known as lightning protection, is a variety of electronic devices, instruments, communication lines to provide safety protection of electronic devices. When the electrical circuit or communication lines because of external interference suddenly generate spikes in current or voltage, surge protector can be shunted in a very short period of time on conduction, thereby avoiding damage to other equipment in the circuit surge.
item | value |
Place of Origin | China |
Brand Name | HAMMOND |
Model Number | HD-C 40 |
Product name | HD-C 40 |
Material | Metal |
Function | Lighting Protection |
CERTIFICATE | ISO9001 |
Color | white |
Maximum Discharging Current | 40KA |
Nominal Discharging Current | 20KA |
Maximum Continuous Operating Voltage Uc | 385V |
Installation requirements
Surge protector using 35MM standard rail installation
For fixed SPD, the conventional installation should follow the following steps.
1) Determine the discharge current path
(2) mark the additional voltage drop caused by the wire at the end of the equipment,.
3) To avoid unnecessary induction loops, the PE conductor of each device should be marked.
(4) the establishment of equipotential connection between the equipment and SPD.
5) To carry out energy coordination of multi-level SPD
In order to limit the protected part after installation and unprotected

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 the business scope of new engineering consulting and management fields. 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.