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Furse - ESP LSC Lightning Strike Counters

Furse ESP LSC lightning strike counters, to BS EN 62561-6, detect and count the lightning strikes as part of a structure's Lightning Protection System (LPS).

Furse ESP LSC lightning strike counters are available in two formats - ESP LSC-A, an advanced lightning strike counter with charge, time and date recorder, and ESP LSC-B, a standard lightning strike counter.

Lightning strike counters are typically located on the down conductors of the LPS, to record the number of direct lightning strokes received to the structure. The ESP LSC-A advanced counter also records the time and date of the event as well as key characteristics of the lightning discharge (peak current and charge).

Features and Benefits

  Suitable for both indoor and outdoor installation
  Virtually maintenance free, with all key components stored in a robust polycarbonate housing
  Anticipated battery life of 12 years (ESP LSC-B), for reliable, long-standing performance
  Straightforward mounting around down conductors utilising the mounting plate and screws without the need to remove the enclosure
  No manual reset function ensures accurate continued recording of lightning strokes
  Records lightning strikes regardless of the polarity of the discharge current
  Can be used to record surge current events when fitted with Surge Protection Devices (SPDs)

Data Sheet


Connect the counter to the conductor using the mounting plate and screws provided (maximum torque of 2 Nm).

For simplicity of installation, particularly on existing installations, the ESP LSC-B unit is best sited in a suitable position above the test clamp of the down conductor (for convenient periodic inspection).

The test clamp point is where the conductor can be easily disconnected.

Ensure the conductor is reconnected to the test clamp after installation of the ESP LSC-B unit.

For additional security, install down conductor clips 25 cm either side of the unit.



Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

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