J L Eve C333

Contents

• Overview
  • General data
• Tower forms
• Tower details

Overview

C333 is a distribution tower type designed by J L Eve. The C333 drawing set was used for contracts SWE SL9 (33 kV line from Bath to Melksham) and SWE SL10 (“33KV LINE AT SALISBURY (132KV)”). Both lines appear to have been dismantled.

The tower drawings were drawn in 1936 and approved in 1948; possibly the approval was delayed until after World War II.

It appears that C333 was adapted for the towers used by lines in Abergavenny and Cwmbran in south Wales. These Welsh towers are now owned by National Grid Electricity Distribution (formerly Western Power Distribution) and so far it has not proved possible to confirm that both types have the same dimensions.

Given that the Open Infrastructure Map shows the Welsh lines as 66 kV, one could assume that C333 is rated for 66 kV even if SWE SL9 and SL10 only operated at 33 kV. However, the vertical spacings between conductors were often set according to environmental conditions and could be greater than the minimum spacing required for the specified voltage.

General data

Tower forms

The following diagrams are shown to scale at 12 pixels per metre:

Tower details

See dimensions on the site guide page for a key to the tables. Base widths are, uncharacteristically, between the centres of the stubs at ground level. Values marked * are difficult to read and are a best guess.