М-20/1 Anchor insert for a lightning rod of 11-16 m

It is used for the installation of detached lightning rods:
– art. M-20/11..16 – 11-16 m high;
– art. M-22/09..14 – 9-14 m high
To install the foundation also use:
– reinforcing steel of class A (ø10 … 12 mm) for the device of a reinforcing grid and a reinforcing framework of ~ 85 kg;
– concrete of class B20 ~ 1,2 m3;
– crushed stone ~ 0.8 m3