Aging

The MCSeT switchgear series is designed to work within the normal service conditions as specified by IEC 62271-1 clause 4.1.2.

The switchgears resistance to aging in an MV substation depends on three main factors:

1. The necessity of correct implementation of connections:

   • New cold retractable or slip-on technology offers ease of installation that favours resistance over time.

   • Their design allows them to use in polluted environments with low and medium class of climatic conditions.

2. Impact of the relative humidity factor:

   DANGER
   hazard of electric shock, explosion or arc flash Keep the heater ON to eliminate humidity and condensation. Also, ensure that no dirt and dust are present during the installation process. Failure to follow these instructions will result in death or serious injury.

   • Installing a heating device is essential in climates with high relative humidity levels and major temperature differences.

   • The equipment must be installed in conformity with the relevant IEC standards.

   • Outside of these normal usage conditions, it is recommended to contact Schneider Electric to determine the operations to be carried out as well as their frequency according to the actual service conditions.

3. Electrical room ventilation control:

   CAUTION
   HAZARD OF EQUIPMENT OVERHEATING Grid size must be suited to the power dissipated in the substation. Failure to follow these instructions can result in injury or equipment damage.

   • Avoid air circulation from transformer to switchboard.