By David Wren
To provide greater clarity for the engineer, the reporting of the Maximum Disconnection Times for the various supply systems has been revised and improved.
The standard Supply Types are TN (TN-C-S, TN-S, TN-C), TT & IT.
As in the requirements of sections:
- 3.2.2 and table 41.1
- 3.2.3 for TN networks
- 3.2.4 for TT networks
- 6.5 for IT networks
The appropriate Maximum Disconnection Times for each of the different supply types are now included in the Way's ‘Results’ and in the Final Circuit printed reports.
As illustrated below:
For a TN system.
Or a TT system.