Experimental verifications on the electrical continuity and mechanical strength for impulse current of the steelwork

This paper verified the electrical continuity of steelwork and tested the endurance of the steel bars´ connection for lightning current in reinforced concrete apartments. It was proven that the steelwork in reinforced concrete apartment has electrical continuity with low resistance (below than 0.2 Ω. Also the installation of the steel bars as down-conductor must be very carefully implemented since it was proven that a poor connection between two reinforcement bars can easily cause serious damage of the concrete even with impulsive current of 50kA, 10/350 μs.