A Surge Protection device shall be installed where the wires enter the building:

Which of the following is used for providing protection against incoming surges:

The property of surge protection device is to have highly linear (V-I) characteristics :

The resistance between lightning protection system and earth should be:

The zone of protection (surrounding area that a lightning protection system protects ) is approximately ____ times the  height of building protected

An Air Termination should exceed a minimum of ______ above the object that is to be protected:

In case of Air termination for Continuous roofridges air termination should be spaced _____ feet:

A grounding connection to earth from lightning protection system should be made at diagonals corners of the structure:

Angle of Zone of protection of Lightning Protection system is approximately:

Electrical Surges are be caused because of which one of the following:

In case of extreme high voltage during surge, Surge protection device acts as conductor and connects the voltage surge to ground