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Pylon schemes

Contents

Overview

This page is not a catalogue of all lines and schemes, just those schemes that have a name. Not sure what this page is for but it had to be split out from the series page as part of disentangling the confusion between scheme designations and tower suite designations. The entries are only in the vaguest hint of a meaningful order, as virtually nothing is known about any of these schemes.

See the regions page for a guide to the regions and their abbreviations and prefixes.

Primary Lines

Original CEB PL schemes, plus later schemes of 132 kV and above.

Scheme Tower type Region / route / project Route code Date
CS-PL1 CS-PL1 (Milliken L145) Original grid: Central Scotland From 1928
SEE PL1a GEC (“PL1a”) Original grid: South East England From 1928
SEE PL1(b) SEE PL1(b) Original grid: South East England From 1928
CE PL1 SS-PL1 (Milliken T161) Original grid: Central England
NWE PL1 SS-PL1 (Milliken E112) Original grid: North West England and North Wales
MEE PL1 GEC (same as SEE PL1a) Original grid: Mid-East England From 1929
SEE PL2 CS-PL1
NWE PL2 NWE PL2 (Milliken E111) From 1930
NEE PL1 SS-PL1 (Milliken E136) Original grid: North East England From 1930
SWE PL1 SS-PL1 (Milliken E141) Original grid: South West England and South Wales From 1930
EE PL1 SS-PL1 (Milliken E142) Original grid: East England From 1930
SWE PL1(a)&(b) SWE PL1(a)&(b) Original grid: South West England and South Wales Ca. 1931
SS PL1 SS-PL1 (Milliken E164) Original grid: South Scotland From 1931
SWE PL2 SEE PL1a?
Spey Valley Blaw Knox K1576 Tummel Bridge–Keith From 1936
CE PL3 CE PL3
CE PL4 PL4/WGR
WGR PL1 PL4/WGR Carlisle–Galashiels V
SEE PL7 PL7
MEE PL6 PL7?
EE PL3 PL7 “Ipswich–Stowmarket” (unclear; now mostly PL16)
NWE PL6 PL7?
MEE PL9 PL7 Osbaldwick–Melrosegate
NWE PL10 PL4 Natland–Barrow-in-Furness Wartime?
SWE PL9 Blaw Knox K5297 WWII scheme, possibly the rerouting of Bridgwater–Exeter for Norton Manor supply depot At least 1940
SWE PL10 PL7? Wartime diversion/alterations Wartime
SWE PL11 PL7? Wartime diversion/alterations Wartime
MEE PL12 PL7?
MEE PL13 PL7?
NWE PL12 PL7?
SEE PL17 PL4 “Swindon” Ca. 1944?
SWE PL16 PL16 Andover–Salisbury–Bournemouth Ca. 1947
T(12) BEA – L36 PL7 Carrington–Broadheath–Sale (partial)
T(12) BEA – L66 L66/L89 Clyde’s Mill–Carlisle–Stella Ca. 1952
T(2) BEA – L136 PL7? Littlebrook–Hastings diversion
T(2) M&M L4 PL7? Brighton–Worthing PSA
Three Bridges–Brighton PRA
T(8) K&D L8 J L Eve L3 South Wales area: likely Pyle Ca. 1954
WM(EL) L27 J L Eve L3 Stourport–Ludlow ?
T(6) CEA – L236 Blaw Knox K4611 Spondon–Annesley–Chesterfield uprating from 66 to 132 kV Ca. 1958
T(2) CEA – L256 PL7? West Weybridge–Staines Ca. 1958 †
T(2) CEGB – L280 PL7? 132 kV line mods – Northfleet

† The CEA only existed between 1955 and 1957, and since L236 is already dated to after 1957, L256 is presumably going to be around the same time.

Secondary Lines

33 kV and 66 kV on lattice towers, mistakenly referred to as “pre-Grid” towers. Tower diagrams pending some way to name the different tower types on this site.

Scheme Tower type Route Route code Date Comments
MEE SL1 Milliken E102 “Lincolnshire area” From 1929
MEE SL2 J L Eve C15 0.1″ SCA
J L Eve C15 0.15″ SCA
From 1929 Seems to have been treated as one scheme
NEE SL1 Darlington–Northallerton HO-SA
Malton–Scarborough HO-SC
Malton–Whitby HO-SD
Harton–Sunderland HO-SE
Sunderland–Dunston HO-SF
Dunston–Hebburn HO-SG
Hebburn–Harton HO-SH
NWE SL2 Milliken T163 ca. 1929 Also SL2A
SEE SL2 Watshams ca. 1929 Only recovered drawing is the D60/DT, same tower as in SEE SL3
SEE SL3 SEE SL3 ca. 1930 D60/DT as SEE SL2
SWE SL2 Milliken E177 ca. 1932 Apparently also SWE SL3
SEE SL4 SEE SL4 ca. 1934
NWE SL4 NWE SL4 ca. 1936
SWE SL9 J L Eve C333 Bath–Melksham Drawings appear to have been drawn in 1936 and approved in 1948
SWE SL10 “33 kV at Salisbury (132 kV)”
SEE SL8 SEE SL8 Rayleigh–Southend Only the gantry drawing recovered
SWE SL11 Blaw Knox K9906 ca. 1947?
SWE SL4 Blaw Knox K9906? SL4 noted on the K9906 D30 GA diagram instead of SL11
NWE SL9 Watshams 132 kV? Copies of the SEE PL7 D10 and D30 drawings were found annotated “N.W.E. - P.L.6 & S.L.9.”; these are 132 kV towers so it’s not clear what SL9 encompassed.