Straight line tower series comparison

Contents

• Overview
• Three and four circuit and dual voltage
• Double circuit
  • 33 and 66 kV
  • 132 kV
  • 275 kV
  • 400 kV
• Single circuit
  • 33 and 66 kV
  • 132 kV
  • 275 kV
  • 400 kV

Overview

Use this page to help identify UK electricity pylon series by D, D2, D3, S, S1, S2 and S3 line 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

The K1373 S type is three circuit (2 × 66 kV plus 1 × 33 kV).

Double circuit

Double-circuit straight line towers (suspension towers) by series.

33 and 66 kV

† Confirmed uprated to 132 kV

132 kV

Note that some K1373/K4611-type lines—whose towers are depicted above—have been uprated for 132 kV.

The Milliken PL1 10° suspension towers are often used as straight line towers than angle towers, fitted with vertical insulators:

275 kV

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

400 kV

Single circuit

Single-circuit straight line towers (suspension towers) by series.

33 and 66 kV

132 kV

The following types have been observed but no documentation has been recovered and the designations are for convenience only:

275 kV

400 kV