Version: 5.0
Date: 05/09/2018
Railway PME Application Form
Section 1 (to be completed by UK Power Networks)UK Power Networks Reference / Click to enter reference /
UK Power Networks Designer / Click to enter designer name /
Section 2 (to be completed by railway operator)
Customer / Click to enter customer name /
Customer Contact / Click to enter customer contact /
Location of Supply / Click to enter location of required supply /
Section 3
To be completed by railway operator for all LV supplies associated with railways (electrified or non-electrified)
3.1 / Q / Are there other DNO supplies to the same premises or installation?
A / Click to select
3.2 / Q / Will the other DNO supplies be removed or replaced?
A / Click to select
3.3 / Q / Is there a common metallic coupling (cable, track etc.) between the PME earth terminals?
A / Click to select
3.4 / Q / Will the installation be constructed in accordance with BS 7671?
A / Click to select
3.5 / Q / a) Will the intake cubicle be metallic?
b) If yes, how will the external touch potentials be controlled so as to prevent danger to the public?
A / a)Click to select
b)If yes, click to enter details of how external touch potentials will be controlled
3.6 / Q / Is there a traction supply point at the railway station?
A / Click to select
3.7 / Q / Is the railway electrified using an AC or DC traction system?
A / Click to select
Section 4(to be completed by railway operator)
To be completed by railway operator if the LV Supply is associated with an AC traction system
4.1 / Q / a) Is there also a DC traction supply in the vicinity of the AC supply?
b) If yes, is there a transfer track between the AC and DC supplied tracks?
A / a) Click to select
b)Click to select
4.2 / Q / Will the DNO earth terminal be bonded to the traction running rails?
A / Click to select
4.3 / Q / Is the bonding conductor between the earth terminal and traction return rail adequately sized to carry foreseeable traction fault current?
A / Click to select
4.4 / Q / Confirm the maximum earth potential riseon the DNO earth terminal and clearance time for:a) Zone 1 faultb) Zone 2 fault.
A / a) Zone 1 EPR:Click to enter EPRClearance Time: Click to entertime
b) Zone 2EPR:Click to enter EPRClearance Time: Click to enter time
4.5 / Q / Does the rise of voltage on the traction rail due to traction return current exceed 25V?
A / Click to select
4.6 / Attach:
a) Electrical schematic of proposed route from DNO intake to main switch room☐
b) Earthing diagram☐
Form complete, please submit your application
Section 5
To be completed by railway operator if the LV supply is associated with a DC traction system
5.1 / Q / a) Is there alsoan AC traction supply in the vicinity of the DC supply?
b) If yes, is there a transfer track between the AC and DC supplied tracks?
A / a) Click to select
b)Click to select
5.2 / Q / What is the electrification system? (e.g. 3rd rail 700V)
A / Click to enter details of electrification system
5.3 / Q / Is either pole of the traction supply directly connected to earth (except for the sole purpose of the detection of earth fault conditions)?
A / Click to select
5.4 / Q / Is the traction supply rail insulated from earth?
A / Click to select
5.5 / Q / Is the traction return rail insulated from earth?
A / Click to select
5.6 / Q / Will the LV supply including the protective earthing conductor and all earthed metal associated with it be segregated from all DC conductors by at least 1 metre inthe soil in accordance with BSEN50122-2?
A / Click to select
5.7 / Q / Are there any incidents of corrosion to the rail, infrastructure or electrical connections attributed to DC current?
A / Click to select
5.8 / Q / Does the voltage between running rails and earth satisfy the requirements of BSEN50122-1 (less than 5V)?
A / Click to select
5.9 / Q / Does the conductivity between running rails and earth satisfy the requirements of BSEN50122-2 (less than 0.55 S/km per track)?
A / Click to select
5.10 / Attach:
a) Electrical schematic of proposed route from DNO intake to main switch room☐
b) Earthing diagram☐
Form complete, please submit your application
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