The following is from National Grid:
Please find attached a letter here we’ve sent to residents nearest to our essential work to refurbish the overhead electricity line between our Elstree and Sundon substations.
We’ve written to residents of Cheverells Close where the line runs south-east along the road.
Access to businesses and residential properties will not be affected, and our work will not affect local electricity supplies.
Work will be taking place between Friday 9 August and Friday 30 August. The team will typically be working weekdays between 8am and 7pm. Please be aware that these timings can change at short notice.
Kind regards
National Grid community relations team