1. Allocation of rights – LV/MV
Simon Scarbro, WPD

2. Stages
PCC
Stage
G5/4-1
IEC
400V 1 □ 2 □* 3
11kV
33kV

3. 400V Point of Common Coupling
Stage
G5/4-1
IEC
Ref
Equal rights
1st come, 1st served 1
IEC □ -
IEC
Table 6
Table 7 2
7.3 Prediction
VTHDp & V 5p 3

4. 11kV Point of Common Coupling
Stage
G5/4-1
IEC
Ref
Equal rights
1st gets all 1 -
8.1.1: □
NB Nearest to IEC is Table 10
8.1.2: 2
8.2.1:
Table 10
Table 12
7.3 Prediction
VTHDp & V 5p
8.2.2: : 3
8.0 Prediction
VTHDp & V hp; h=2..50
PCC & selected B/B
8.3: Detailed study, >Stage 2 limits, conditional □?

5. 33kV Point of Common Coupling
Stage
G5/4-1
IEC
Ref
Equal rights
1st gets all 1 -
8.1.1: □
8.1.2: 2
8.2.1:
8.2.2: : 3
8.0 Prediction
VTHDp & V hp; h=2..50
PCC & selected B/B
8.3: Detailed study, >Stage 2 limits, conditional □?

6. Conclusions
IEC is solely Equal Rights, although higher limits can be offered under Stage 3, conditionally.
G5/4-1 uses Equal Rights for smaller cases and First Come, First Served otherwise.
Both First Come, First Served and Equal Rights approaches have pros and cons.
Application of Equal Rights is particularly problematic at 11kV.
With 132kV & 33kV Planning Levels set the same, GhMV+LV = 0 if ThUM = 1 so Equal Rights at 33kV could be problematic.