The T-Pylon Project



The T-pylon design became winner in an international competition to find a 21st century design for carrying high voltage overhead lines.

National Grid UK has begun construction of a line of the new high voltage T-Pylons, which at 35 metres are up to a thrid lower than traditional lattice towers.

Six of the new pylons have been erected at National Grid's training academy in Eakring, Nottinghamshire, each demonstrating a different function in the network.

The T-Pylon is a structure of only few parts, can be erected quickly, and requires virtually no maintenance.

The radical innovation is the reassessment of the conductor/cable arrangement. The prismatic configuration of the cables allows a reduction in the pylon's height by more than 30%. The footprint of the power lines as well as the electro-magnetic field (EMF) radiation is reduced.

The most remarkable characteristic of the T-Pylon design is that all conductors are carried by a single attachment point. Traditionally, such a structure would have three separate arms - each carrying an individual conductor.

This unique attachment point was studied closely to ensure its robustness and resistance to fatigue. Complex analysis and physical loading tests were carried out to simulate climatic conditions such as extreme winds and ice loads. Investigations were made into the dynamic performance of the structure under simulated vibrations. 

"In the T-Pylon we have a design that has the potential to be a real improvement on the steel lattice tower.

- Nick Winser, Executive Director, National Grid.

Main specs for the BYSTRUP T-Pylon:
Power: 2 x 400 kV
Height: 35 metres / 114 feet
Units/km: 3  (5 units/mile)
Material: Hot-dip galvanised steel, painted
Outline: Minimal footprint
Assembly: On-site and quick. Less than ten parts
Installation: Simple and easily installed monopile foundation
Manufacturing: Production possible anywhere in the world
Developed: 2011-2014
Origin: 1st prize in an international design competition
Nominated for the IET Innovation Award 2014


The T-pylon consists of a family of pylons: a) Suspension pylon b)Flying angle pylon for maximum 10° deviation c)Tension pylon for 0° to 30° deviation d) Dead-end terminal pylon



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on phone +45 39 27 00 85 or via the form below

BYSTRUP     Vermundsgade 40a      DK 2100 Copenhagen Denmark      Phone +45 39 27 00 85      Company reg. no. 32099734
BYSTRUP 2014 © All rights reserved | Cookie Policy Site disclaimer
Vermundsgade 40a
DK 2100 Copenhagen
Phone +45 39 27 00 85
Company reg. no. 32099734

BYSTRUP 2014 © All rights reserved
Cookie Policy Site disclaimer