Copper rod or air terminal. A copper rod could be the most commonly applied product for lightning rods, as it provides exceptional conductivity and corrosion resistance.
Lightning rod cable. A copper cable is applied to connect the lightning rod to the grounding substance. It should be of adequate dimension to manage the electrical present generated in the course of a lightning strike.
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The lightning rod rate also will depend on the fabric, with charges varying involving $60 and $one hundred fifty for every unit. When shopping for basic lightning rods, you've two choices for products: aluminum and copper. Both these materials have their advantages and drawbacks.
Guarding the best most notable making elements with strike termination equipment, dependant on a building’s geometry, also supplies some amount of safety for reduce extensions of your framework, or products while in the “shadow” of the higher absolutely shielded locations. A zone of defense exists from any vertical strike termination unit and in excess of that from a vertical fully protected building degree. Zone of protection is described within the lightning Specifications utilizing a one hundred fifty toes (forty six meters) radius sphere design to recognize things under the protection of larger program factors or creating extensions to distances that demand additional protection by extra strike terminals. This really is like rolling a three hundred ft (92 meters) diameter ball from quality up from after which you can around a making to the other grade stage in every single conceivable course.
Nevertheless, if it is unavoidable that the down-conductor has to be routed inside the structure, the regulation specifies that it must be routed in a particular non-flammable, insulated conduit that runs in total or partially In the composition.
If any item is issue to abnormal mechanical injury or displacement, it could be safeguarded with a molding or covering, but treatment has to be exercised to permit strike terminations together with other roof mounted elements to provide their function in accepting attachments. Lightning defense factors under the strike terminals may very well be hid throughout the creating down below the roof degree through construction or when available.
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Here are a few key ways to incorporate within your normal routine maintenance program: Inspect the lightning rod method visually to ensure that all parts are intact and securely in place.
It is usually possible to acquire different resistance values for grounding electrodes even on precisely the same structure.