External lightning protection for residential buildings
External lightning protection for residential buildings
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Structural Lightning Protection: How It Works
Structural Lightning Protection: How It Works
Direct lightning strikes present an immediate threat to life and property. Macrotech Industrial Trading supplies end-to-end external protection engineered to catch, route, and neutralize direct strikes instantly through a precise 3-stage process:
Intercept (Air-Termination Systems): Captures high-voltage lightning at roof level.
Divert (Down Conductors): Safely routes extreme current down the exterior of the structure.
Discharge (Earthing & Grounding): Neutralizes the high-energy surge deep into the earth, preventing structural fires and catastrophic damage.
Complete Peace of Mind: External systems protect the building; internal surge protective devices (SPDs) protect connected equipment. Together, they form a complete, impenetrable defense.
Press the numbers below that correspond to the numbers shown in the photo above:
1. Roof surface air-termination system
1. Roof surface air-termination system
DEHNalu round wire
840018
Soft, twistable aluminium wire, for use in lightning protection systems as an air-termination system, down conductor or equipotential bonding.
SPANNgrip, stainless steel
206249
Roof conductor holder for fixing air-termination conductors on ridge tiles. Fixed with a stainless steel tension spring with DEHNgrip conductor holder, loose conductor routing, laterally adjustable.
UNIgrip, stainless steel
206309
Roof conductor holder with pre-punched brace for fixing air-termination and down conductors to roof surfaces. With prepunched points for bending it and hooking it on roof tiles or battens, including DEHNgrip conductor holder.
MV clamp A
390551
Multi-purpose connecting clamp for universal use as a cross clamp, T clamp and parallel clamp for round conductors. Two-part version with hexagon screw, spring washer and threaded base part.
2. Air-Termination system for large-mounted structures
2. Air-Termination system for large-mounted structures
Tubular air-termination rod
103410
Chamfered tubular air-termination rod with tapering to protect roof-mounted structures. For concrete base with fixing wedge or fixing with rod holders or spacers.
DEHNiso spacers
106225
Spacers for air-termination rods for maintaining separation distances. Made of glass-fibre reinforced plastic, UV-stabilised, light grey colour. With rod holder for fixed conductor routing und pipe clamp.
Rod clamp StSt
380029
Rod clamp for connecting air-termination rods to round conductors. Version for a lengthwise or crosswise connection.
3. PV installation
3. PV installation
UNI earthing clamp
540249
For integrating the mounting systems of PV systems into equipotential bonding.
UNI seam clamp, StSt/aluminium
365250
For integrating the mounting systems of PV systems into functional equipotential bonding, functional earthing and lightning equipotential bonding.
UNI earth clamp
540263
With double clamp. For integrating parts of an installation in the functional equipotential bonding, lightning equipotential bonding or in the functional earthing.
4. Metal capping of the roof parapet
4. Metal capping of the roof parapet
Seam clamp, Al
365031
Seam clamp for connecting round conductors with seams. Version with clamping piece, lengthwise or crosswise conductor routing.
Bridging bracket
377006
Bridging bracket for connecting and joining metal cladding. Short version, with centre hole, for riveting or screwing.
5. Gutter / snow guard
5. Gutter / snow guard
Snow guard clamp
343000
Snow guard clamp for connecting round conductors with snow guards. Version with two-screw clamp, lengthwise cable routing.
Gutter clamp, Al
339111
Gutter clamp for connecting round conductors to the bead of the gutter. Single-screw-technique version with double clamp, lengthwise conductor routing.
6. Down conductor
6. Down conductor
DEHNhold conductor holder
274160
Conductor holder with a slotted saddle clamp for fixing round conductors. Can be used for various materials and fixed conductor routing. Version with female thread, pre-assembled with screw, plastic base and plug.
Conductor holder, stainless steel
200069
Conductor holder for laying down conductors on downpipes. PS-type without the use of screws, with embossments for tongs. For fixed conductor routing.
Number plate
480003
Number plate for marking test joints. Version without number for round and flat conductors.
DEHNalu round wire
840018
Soft, twistable aluminium wire, for use in lightning protection systems as an air-termination system, down conductor or equipotential bonding.
7. Earth entry
7. Earth entry
Stainless steel connection lug
860115
Round wire made of corrosion-resistant stainless steel (V4A), for connecting down conductors to the earth-termination system.
Disconnecting clamp, stainless steel
459129
Disconnecting clamp for connecting the down conductor to the earth entry. Version with intermediate plate for two round conductors.
DEHNhold conductor holder
274160
Conductor holder with a slotted saddle clamp for fixing round conductors. Can be used for various materials and fixed conductor routing. Version with female thread, pre-assembled with screw, plastic base and plug.
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