This test lead from Chauvin Arnoux is specifically designed for measuring earth resistance and specific earth resistance. The product consists of a 30 m long, green test lead wound onto a reel with a handle. The reel enables easy and comfortable transport, especially for mobile measurement tasks in the field. The green colour of the lead serves for clear identification during use, particularly in complex measurement setups where precise assignment of leads is required.

Applications
This test lead is used in conjunction with earth testing kits, which are employed for testing earth systems in electrical installations. It is suitable for 3-pole and 4-pole measurement methods used for determining earth resistance and specific earth resistance. These measurements are mandatory to ensure the safety and functionality of electrical installations, particularly in industrial and commercial facilities, as well as during maintenance of low-voltage systems.

Functions and Equipment in Detail
The lead is wound onto a reel with a handle, enabling compact storage and easy transport. The length of 30 metres provides sufficient reach for typical measurement tasks where the earthing system is located away from the measurement point. The green colour of the lead serves as a visual identifier, aiding distinction from other test leads in professional use. The lead itself is manufactured as high-quality test accessory, specifically designed for use in earthing tests.

Technology Explained Simply
The test lead serves as a connecting element between the measuring instrument and the earthing system or electrodes. When measuring earth resistance, the lead is used to establish an electrical connection between the measuring device and the earthing system. The 30-metre length allows access to larger installations or remote earthing points. The green colour is not a technical parameter but a visual feature to improve handling during use.

Compatibility and Accessories
The test lead is designed for use with earthing test kits, particularly for 3-pole and 4-pole measurement methods. It is used in combination with earthing measurement instruments specifically designed for determining earth resistance. Compatibility is ensured if the measuring instruments provide the required connections for the lead. The lead is not a standalone measuring device but an accessory necessary for carrying out the measurement.

Installation and Mounting
Installation involves connecting the lead to the measuring instrument and then connecting it to the earthing system or electrode. The reel facilitates unwinding and rewinding of the lead, optimising handling during use. No additional tools or mounting aids are required, as the lead is directly connected to the terminals of the measuring instrument.

Operational Advantages
The wound form on the reel with handle reduces the risk of entanglement or injury caused by loose leads. The 30-metre length provides sufficient flexibility for various application scenarios. The green colour supports quick identification during use, increasing efficiency when performing measurements. The product is designed as robust test accessory, suitable for repeated use in professional applications.