A program with the ultimate aim of quantifying the fidelity of laboratory test techniques used to simulate the penetration of metallic surfaces by lightning continuing currents has been undertaken. Descriptions of the program methodology, dominant factors found to influence test results, and data obtained so far are given. Based on considerations of fundamental arc phenomenology and on the acquired experimental data, a standard test configuratidh has been established, which has been demonstrated at two independent laboratories to produce consistent results that are generally corroborative of techniques suggested elsewhere in the lightning literature.

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