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Terminal and junction tower series comparison

Contents

Overview

Use this page to help identify UK electricity pylon series by DT, DJT, DT90 and ST (etc) terminal and junction towers. Within each voltage class the tower series are arranged in approximate chronological order of introduction. See the comparisons page for other comparisons. See the series page for the list of known series.

Not all series are covered by this page; coverage is limited to available data. See the project completeness page for details.

Three and four circuit and dual voltage

Blaw Knox K1373 D (Spondon terminal)
Blaw Knox K1373 D (Morley terminal)

Double circuit

Double-circuit terminal and junction towers by series.

33 and 66 kV

Milliken L134 anchor & terminal
SEE SL2 D60/DT
DT with sealing ends [Marshall]
Milliken E177 DT
SEE SL4 DT
NWE SL7 DT
SEE SL8 terminal tower
Blaw Knox K1373 C terminal (symmetric)
Blaw Knox K1373 C terminal (asymmetric)
Belper terminal tower (K1373)
Willoughby C-type terminal tower (K1373)
Abergavenny/Cwmbran DT
Preston DT (CM1, CT1)
Preston DT (TB5)
Preston DT (RPB2A, TA7)
Preston DT or DT45 (RPA85, RPB75R)
Preston DDT (RPB)
Preston DT or DTV (Kent)
Blaw Knox K9906 DT
Blaw Knox K9906 DT (sealing end)
Blaw Knox K9906 DT (aux. crossarms)
Blaw Knox K9906 DTV
L4(m) 66 DT 0°–45°
L4(m) 66 DTV
L4(m) 66 special D90 3-way junction tower
L4(m) 66 unidentified DT
L4(m) 66 unidentified DTV

132 kV

CS PL1 D60/DT
SEE PL2 DT (72′–6″) (BI Cables)
SEE PL2 DT (74′–6″) (BI Cables)
EE PL1 DT
SWE PL1 DT
SWE PL1 DT60
SWE PL1 DT60A
SWE PL1 DT-type Junction
EE PL1 DT90
CE PL1 LNE terminal
SEE PL1a DT/DT45
SEE PL1a DT90
SEE PL1(b) DT
SEE PL1(b) DT90
CE PL4 DDT90 “A”
CE PL4 DDT90 “B”
PL4 DDT90 variant 1
PL4 DDT90 variant 2
Lydney DDT
SEE PL7 DT
SEE PL7 DT (ETC)
SEE PL7 DDT
SEE PL7 DDT (ETC)
SEE PL7 DDT90
PL16 D60 junction (D60J)
PL16 D90 junction (D90J)
PL16 D90 junction (D90J) (aux. crossarms)
SWE PL16 DT
SWE PL16 DT90
SWE PL16 DDT
SWE PL16 DDT90
K1124B DT through-line
Eve C670 DT
Eve C670 DT variant 2
Eve C670 DT variant 3
Eve C670 DT90
Eve C534 original 1950 DT
Eve C534 hypothetical through-type DT
Eve C534 standard DT
Eve C534 standard DT, square-ended top x/arms
Eve S123 standard DT, 30′ top x/arms
Eve S123 through-type DT
Eve S123 minimal through-type DT
Eve S123 through-type DT, 30′ top x/arms
Eve S82 DT90
Eve S259 through-type DT with wide-end crossarms
Eve C772 DT45
L7(c) DT
L7(c) DT (basic crossarms)
L7(c) DJT
Eve C1415 DT
Eve C1415 DT (ETC)
L4(m) DT
L4(m) DT (aux. crossarms)
L4(m) DT (typical outriggers)
L4(m) DJT (terminal)
L4(m) DJT (junction)
Quoich–Broadford DT (Quoich tee)

Note that L2 towers were designed for 275 and 380 (or 400) kV and are listed under 400 kV below.

275 kV

L66/89 DT
Blaw Knox L3 DJ
Blaw Knox L3 DJX
Blaw Knox L3 DT
Blaw Knox L3 DTV45
J L Eve L3 DT
Blaw Knox L3 ST

400 kV

Note that Balfour Beatty L6 DT looks a lot like the D90.

L2 DJ
L2 DJX
L2 DT
L2 DTU (0–5° entry)
L2 DT45
Balfour Beatty L6 DJT STD
Balfour Beatty L6 DT STD
BICC L6 DJT STD
BICC L6 DT STD
Blaw Knox L6 DJT STD
Blaw Knox L6 DT STD
J L Eve L6 DJT STD
L6(c) DJT STD
L6(c) DT STD
L6m DJT STD
L8(c) DJT
L8(c) DT STD
L12 DT Mk 1
L12 DT
L13 DJT
SSE400 DT
AS4 ADJ
AS4 ADT

Single circuit

Single-circuit terminal and junction towers by series.

Single circuit lines

Termination of a complete single-circuit line. For gantry types, see also gantry comparison.

33 and 66 kV

Milliken E102 ST
Salterhebble terminal tower

110 kV

Blaw Knox K1641 SCT

132 kV

CS PL1 S60/ST
SEE PL2 ST
SEE PL1a ST45
EE PL1 ST
SS PL1 ST (Glenlee etc)
SEE PL1a ST90
PL4/WGR? ST DEW
Blaw Knox K1201 ST
Blaw Knox K1201 SST
Blaw Knox K1420 ST
Blaw Knox T1498 STL

Special tall towers:

NWE PL2 tower F3
NWE PL2 tower 75

275 kV

Coylton–Auchencrosh terminal tower STD

Half line, double circuit

Termination of one circuit of a double-circuit line.

132 kV

L7(c) ST
L4(m) ST

275 kV

L2 ST
L2 STX
L3 ST

400 kV

L2 380ST
Balfour Beatty L6 ST
BICC L6 ST
Blaw Knox L6 ST
L6(m) ST
L6(c) ST
L8(c) ST M7.3
L12 ST STD