SNZ TR 6120:2014 PDF Download

The SNZ TR 6120:2014 standard provides an examination of various alternatives to the MEN (Multiple Earthed Neutral) low voltage supply earthing system. The standard offers recommendations for the use of the TT (Separate Source and Separate Earth) system in specific circumstances.

The primary objective of this standard is to assess the viability and effectiveness of alternative earthing systems, particularly in situations where the MEN system may not be suitable or practical. The TT system is highlighted as a potential alternative, and specific guidelines are provided for its implementation in certain cases.

The standard aims to ensure the safety and reliability of low voltage supply earthing systems by evaluating different options and providing clear guidance on their use. By considering alternatives to the MEN system and offering specific recommendations for the TT system, this standard promotes the best practices for earthing systems in low voltage supply installations.