Earth enhancing compounds (EECs) can be an effective solution for lowering the resistance or impedance of an earthing system in both power system and lightning protection applications. However, not all EECs are equal in their independent testing, performance, characteristics, ease of application, OH&S aspects and environmental credentials.

The paper reviews the relative performance of the main types of EECs, how they are tested, the relevant standards and the main pitfalls that should be avoided. The main focus of the paper is to describe the extensive development behind a new EEC that surpasses all benchmarks on the market, particularly the stability of its long-term conductivity. The results of independent testing against IEC 62561-7 are presented and the environmental and OH&S credentials of the product are emphasised.