GERT8000-AC Iss 8
AC Electrified Lines
Synopsis
Summary Of Changes
The rules have been updated throughout to refer to multi-mode trains where previously they referred to bi-mode trains. The definitions have been updated also.
New signs have been introduced at sections 15.5 where electric trains coast with lowered pantographs, or a multi-mode train changes to self-powered mode (section 15.6). These are now black and yellow in colour so that they can easily be distinguished from permanent power changeover (PCO) locations.
New instructions have been introduced at section 18.3 concerning defective balises which would prevent automatic power changeover being carried out. Similar instructions concerning PCO signs that are missing, damaged or obscured have been added at section 18.4.
A new section 19 has been introduced concerning PCO between ac electrification and other forms of traction power. It describes the signs that can be provided.
The changes form part of a suite of standards changes relating to the introduction of new permanent and temporary power changeover signs applicable to multimode trains. It is anticipated that this suite of changes can make some contribution to reducing the number of failed changeovers.

- Issued:
- 01/03/2025
- Published:
- 01/03/2025
- In Force:
- 07/06/2025
- Next Review:
- 07/06/2026
Details
Consultation Status | Open |
Consultation due | 03/04/2025 |
Consultation sign-up | Consultation sign up |
Consultation Link | Consultation link |
Vehicle Assessment | No |
Supersedes | GERT8000-AC Iss 7 |
Associated Standard | GERT8000-RBBL Iss 41, GERT8000 Issue Iss 38 |
Lead Committee | Traffic Operation and Management - TOM |
Supporting Committee | Control Command and Signalling - CCS; Energy - ENE; Rolling Stock - RST |
Impact Assessments
![]() Registered |
25 IA08 |