Blaw Knox K1373 and K4611 finds

This page covers Blaw Knox K1373 and K4611 finds from sources not acceptable as outbound links on the series pages; in most cases these towers are out of reach for replacement photography.

For other types, see the finds overview page.

Contents

• Notes
• Segments
  • Chesterfield–Alfreton
  • Annesley–Staythorpe
  • Spondon–Loscoe
  • Annesley–Loscoe
  • Spondon–Morley
  • Morley–Belper
  • Willoughby (on the Wolds)–Queniborough
  • Willoughby–Ratcliffe-on-Soar
  • Queniborough–Kibworth
• Miscellaneous

Notes

Double circuit (twin 66, upgraded to twin 132):
A or DA = line (unknown angle limit); load chart 3°
B or DB = small angles (up to 23° so far), transposition; load chart 20°
C or DC = larger angles (23°–67° so far), terminal; load chart 60°

Segments

Chesterfield–Alfreton

Uprated to 132 kV

Basic single earthwire towers, 2 × 132 kV, PL16 at both ends
Angle towers: B type for 17°, C type for 23°, 24°, 29°

• Type A single earthwire (SEW): 53.1684076,-1.3853512

Annesley–Staythorpe

Conventional double earthwire, uprated to 132 kV double circuit; PL16 DT at Annesley

Beyond the substation, towers are built as to take two earthwires but have no earthwire crossarm.

• Strange C type, 26°: 53.0883605,-1.242314
• C type, 67° DEW: 53.0885902, -1.2359661
• B type 23°: 53.0678078, -1.1762359
• C type, 62° SEW +outriggers: 53.0623339, -1.1557097
• C type, 28° SEW without outriggers: 53.0682602, -1.1325163
• B type, 12° (adjacent to above): 53.0682602, -1.1325163

Spondon–Loscoe

Double earthwire towers with no earthwire crossarms; uprated to 132 kV double circuit
67° angle found for C type
L4(m) terminal tower at Loscoe
Double earthwire crossarms (but single earthwire) from Spondon substation,
crossarms omitted after that: 52.9146141, -1.3869305

Annesley–Loscoe

Uprated to 132 kV

• 53.0492999, -1.3226717
• 53.0545988, -1.3106958
• 53.0623648, -1.2913528
• Loscoe: 53.0284598, -1.3735137
• Adjacent line: 53.0884568, -1.242396

Spondon–Morley

Three-circuit towers (2 × 66 kV, 1 × 33 kV), downgraded to 33 kV double circuit on the 66 kV crossarms
Double earthwire at Spondon, then single, then double at Morley

• A DEW, with tower 1 (Spondon terminal) visible in the distance: 52.9099819, -1.3963511
• 33 kV–only transposition DEW: 52.9152315, -1.3938243
• 33 kV–only transposition SEW: 52.9339934, -1.4030453
• D DEW: 52.9214413, -1.3922572
• D SEW: 52.9222696, -1.3932137
• M 4-tier: 52.9246757, -1.3936383 • 52.9476779, -1.413534
• M transposition: 52.9504721, -1.4141383
• D terminal, Morley (now a through tower): 52.9608594, -1.4177531

Morley–Belper

Double circuit 66 kV, de-rated to 33 kV

Double earthwire at Morley is Keith type
M tower converted to terminal at Belper: 53.012887, -1.4483653
The remainder of the line to Grassmoor is gone
No transposition towers observed

Willoughby (on the Wolds)–Queniborough

Double circuit 66 kV, de-rated to 33 kV

• C with custom top crossarms, two in succession, Willoughby:
  1. 52.8257965, -1.0690244
  2. • 52.8252744, -1.0685693
     • 52.827274, -1.0703655
     • 52.8257965, -1.0690244
     • 52.8227162, -1.0667729
• A with lightning conductor fitted: 52.7768997, -1.0488257
• Double earthwire at Queniborough, separate crossarms
• Terminal tower at Queniborough no longer matches the drawings: 52.696789, -0.9992646

Willoughby–Ratcliffe-on-Soar

Uprated to 132 kV

• C double earthwire, Willoughby: 52.8269247, -1.070029
• A type, revised peak for ±85° earthwire swing: 52.8287921, -1.1033358
• B transposition: 52.8398452, -1.142175

Queniborough–Kibworth

Only known single-circuit line. Single circuit 66 kV, massively de-rated to 11 kV.

• Kibworth substation, angle: 52.5372175, -1.0227885

Miscellaneous

Unsorted items prior to line surveys.

• Christmas Tree DC-type with “outriggers” for 132 kV upgrade: 53.1833537, -1.3800265
• Various K1373 stuff: 10232872332730100