The external protection of your home and also the protection of internal properties demands deep and comprehensive approach on the protection technology to be applied. The installation of an internal and external lightning protection system can minimize the threat caused by direct lightning events. The electrical installations and networks usually fixed inside and outside your facility like security and surveillance systems, alarm system, electric fencing, etc. are complexly designed making it more vulnerable to be hit by those giant breakdowns and are deadly concerns when left without safety provision.
An external protection technology should mandatorily compose of –
- A lightning arrester installation at the highest point of the structure for capturing the downstream.
- A down conductor for connecting the lightning arrester to the earth termination system and further conveying the lightning surges safely to the ground.
- An earth termination system or earthing system for providing a low resistant path and paving safe path for the fault to the ground.
Indispensable lightning protection technology marked in NFPA laid Standards and NBC 2016:
This is the common franklin rod technology that are basically a network of lightning eliminators fixed at the highest point of any structure to draw the electric discharges from the cloud before it strikes on anything within the protected zone. The network of lightning arrestors are connected using conductors intending to lay out parallel path for the electric fire to the ground. The rods are arranged as per the risk analysis conducted at the Protection required area/structure which is as per IS/IEC 62305 standard. Mast and insulators are other required essential part and parcels along with the rods and mesh conductors.
Linking the air terminal and the grounding system is the section termed down conductor which is also made of good conducting material to conduct the high potential into the ground.
This protection system is indispensable and thus it is covered under National Fire Protection Association Standards and National Building Code 2016.
Safety provision for indoor electronic equipment from Indirect lightning strikes encroaching into the facility:
As for an approaching storm, you install conventional rod and down conductor network for structural safety of your home/ business; it is equally important that you shield equipment inside the facility. Transient surge suppressing units unfolded into – primary and secondary protection modules are for shielding against lightning induced surges and switching surges at every level. Specific surge suppressors are also designed for AC/DC Power line, signaling and communication systems, datelines, security and surveillance systems, etc for complete protection scheme.