What Are Lightning Surge Protection Devices
                     What Are Lightning 
Surge Protection 
Devices?
Surge protection refers to the protection of systems and electrical 
device against excessively high voltage peaks, such as those 
caused by lightning strikes. It protects electrical installations and 
equipment from electrical surges and transient voltage.
When a discharge current passes near electrical 
cabling, inductive effects can cause transients 
to be induced onto cables. This is particularly 
prevalent on overhead cables carried long 
distances between poles or towers. It is 
common for electrical devices to be connected 
to power and signal cables that run through 
conducting trays, ducting, or carried via 
overhead cables to be affected. The longer the 
cables, the higher the likelihood that high 
voltage transient will be caused through 
coupling effects. This makes distantly located 
devices used for control and monitoring in 
remote locations particularly vulnerable to such 
events.
Transients induced onto When selecting Lightning 
power or signal cables due Surge Protection Devices, 
to EMI and remember there is a 
magnetic/capacitive relationship between unit 
coupling effects are price and performance. 
relatively straightforward Always consider the value 
to protect against. Such of the device being 
transients can be protected when 
countered using Lightning calculating the budget for 
Surge Protection Devices. the protective elements.
When a discharge current passes near electrical 
cabling, inductive effects can cause transients to 
be induced onto cables. This is particularly 
prevalent on overhead cables carried long 
distances between poles or towers. It is common 
for electrical devices to be connected to power 
and signal cables that run through conducting 
trays, ducting, or carried via overhead cables to be 
affected. The longer the cables, the higher the 
likelihood that high voltage transient will be 
caused through coupling effects. This makes 
distantly located devices used for control and 
monitoring in remote locations particularly 
vulnerable to such events
Some of the UL listed Lightning  Surge  
Protection Devices by LEC are:
 The FG300K Series, FG225K Series & FGB220K Series is a high-performance 
UL 1449 Listed Type 1 SPD designed for critical panels located in the 
harshest environments. The Surge Protection Device (SPD) achieves the 
highest UL performance ratings for the Nominal Discharge Current (In) and 
High Current (SCCR) tests while providing a low Voltage Protection Rating 
(VPR).
 The LEC TE-POE-A is a surge protection device for data circuit protection 
which offers surge protection on category 6 Power-Over-Ethernet 
applications for loads up to 0.75 amps. This device helps to protect critical 
video, security and computing equipment from damaging surges, transients 
and circulating ground currents.
 Data Line Protector (DLP) is the state-of-the-art series/hybrid surge 
protection and suppression for low voltage data lines, available in a range of 
configurations for telecom lines, control lines, and more to prevent lightning 
damage and provide surge protection.
The design tools at LEC contain 
everything you need to keep up 
with new technology. Talk to us 
today and find out how we can 
protect your business from 
lightning surge and transients.
 
 
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