Pipe clamp for air-termination rods for fixing as well as lightning current carrying contact of the air-termination rod, e.g. on metal substructures of photovoltaic (PV) installations (square hollow profile); typically installed on steel frame or reinforced concrete structures. Two pipe clamps have to be installed on each air-termination rod.If two pipe clamps are used, the mechanical strength and lightning current carrying capacity of 100 kA (10/350 µs) is ensured.When mounted on pipes, the pressure plate (flat plate 2x angled) has to be removed.