Layer Estimates:

Layer: SUBSTATION (ID:0)
Count: 24
Extent:

XMin: 217177
YMin: 55505
XMax: 620229.9952
YMax: 672250.300000001
Spatial Reference: 27700 (27700)

Layer: OVERHEADTRANSMISSIONLINE (ID:1)
Count: 103
Extent:

XMin: 193297
YMin: 54723
XMax: 548468
YMax: 641074
Spatial Reference: 27700 (27700)

Layer: ELECTRICSITEFACILITY (ID:2)
Count: 394
Extent:

XMin: 193252.95
YMin: 56234.3698999994
XMax: 647220.2942
YMax: 583165.579299999
Spatial Reference: 27700 (27700)