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Document to be superseded as of 03/06/2017
To be superseded by GMRT2111 Iss 1 published on Railway
06/12/2014
Group Standard
GM/RT2181
Issue THREE
Date April 1998
Overhead Line
Equipment (OLE)
Warning Line on
Traction and
Rolling Stock
Synopsis
This Railway Group Standard defines
the requirements for the overhead line
equipment (OLE) warning line to be
applied to traction and rolling stock.
Signatures removed from electronic version
Submitted by
H. C. Peers
Nominated Responsible Manager
Approved by
R. Illingworth
Chairman, Traction & Rolling Stock Subject Committee
Authorised by
M. H. Walter
Controller, Safety Standards
This document is the property of
Railtrack PLC. It shall not be
reproduced in whole or in part without
the written permission of the Controller,
Safety Standards,
Railtrack PLC.
Published by
Safety & Standards Directorate,
Railtrack PLC,
Floor DP01, Railtrack House,
Euston Square,
London NW1 2EE
© Copyright 1998 Railtrack PLC
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To be superseded by GMRT2111 Iss 1 published on 06/12/2014
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To be superseded by GMRT2111 Iss 1 published on 06/12/2014
Railway Group Standard
Overhead Line Equipment (OLE) Warning
Line on Traction and Rolling Stock
GM/RT2181
Issue THREE
Date April 1998
Page 1 of 7
Contents
Section
Description
Page
Part A
Part B
1
2
3
4
5
6
7
References
RAILTRACK
Issue record
Responsibilities
Compliance
Health and safety responsibilities
Supply
2
2
2
2
2
Purpose
Scope
Definitions
OLE warning line dimension and colour
Position of the OLE warning line
Maintenance of the OLE warning line
Training
3
3
3
4
5
6
6
7
1
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To be superseded by GMRT2111 Iss 1 published on 06/12/2014
Railway Group Standard
GM/RT2181
Issue THREE
Date April 1998
Page 2 of 7
Overhead Line Equipment (OLE) Warning
Line on Traction and Rolling Stock
Part A
Issue record
This Standard will be updated when necessary by distribution of a complete
replacement.
Amended or additional parts of revised pages will be marked by a vertical black
line in the adjacent margin.
Issue
1
2
3
Responsibilities
Date
Jan. 95
Comments
Supersedes GM/TT0024
(GM/TT0024 Superseded TE/TT0024).
March 97 Supersedes issue 1 following review.
April 98 Supersedes issue 2, permits the warning line to be
higher in some circumstances.
Railway Group Standards are mandatory on all members of the Railway
Group* and apply to all relevant activities which fall within the scope of each
individual’s Railway Safety Case. If any of those activities are performed by a
contractor, the contractor’s obligation in respect of Railway Group Standards is
determined by the terms of the contract between the respective parties.
Where the contractor is a duty holder of a Railway Safety Case then Railway
Group Standards apply directly to the activities described in the Railway Safety
Case.
* The Railway Group comprises Railtrack and the duty holders of Railway
Safety Cases accepted by Railtrack.
Compliance
Health and safety
responsibilities
Supply
2
The requirements of this Standard apply from 4th April 1998 to new or
significantly changed liveries for rail vehicles entering Railtrack controlled
infrastructure.
In issuing this Standard, Railtrack PLC makes no warranties, express or
implied, that compliance with all or any Railway Group Standards is sufficient
on its own to ensure safe systems of work or operation. Each user is reminded
of its own responsibilities to ensure health and safety at work and its individual
duties under health and safety legislation.
Controlled and uncontrolled copies of this Standard may be obtained from
The Catalogue Secretary, Safety and Standards Directorate, Railtrack PLC,
Railtrack House DP01, Euston Square, London, NW1 2EE.
RAILTRACK
Uncontrolled When Printed
Document to be superseded as of 03/06/2017
To be superseded by GMRT2111 Iss 1 published on 06/12/2014
Railway Group Standard
Overhead Line Equipment (OLE) Warning
Line on Traction and Rolling Stock
GM/RT2181
Issue THREE
Date April 1998
Page 3 of 7
Part B
1 Purpose
This Railway Group Standard mandates that there shall be a clear indication of
the upper limit above which it is not safe to work on traction and rolling stock
(T&RS) vehicles in electrified areas without isolation of the overhead line
equipment (OLE).
The requirements of this Railway Group Standard are in addition to the
requirements of GM/RT1041: Warning Signs and Notices for Electrified Lines.
2 Scope
This Standard applies to all:
• locomotives;
• power cars;
• passenger and personnel carrying coaching stock and multiple units;
• parcels vehicles;
• service vehicles converted from locomotives, coaching stock and multiple
units;
• on-track machines, rail mounted maintenance machines, road-rail vehicles,
road-rail recovery vehicles (applicable for each type where the design
allows).
except:
•
•
3 Definitions
vehicles with route acceptance limited to lines NOT electrified on the
overhead system;
steam locomotives.
OLE Warning Line
A line applied to rail vehicles that is clearly visible when viewed from rail level
and from platform height so that staff working at these levels can see the safe
limit for working when a T&RS vehicle is under OLE equipment.
On-Track Machine
A rail mounted machine that meets the requirements of GM/RT2400.
Rail Mounted Maintenance Machine
Any self-propelled rail mounted machine meeting the requirements of
GM/RT2402 and restricted by the Rule Book from being moved, either selfpropelled or in train formation, outside a possession.
Note:
Rail in this definition refers to permanent rails intended for use by normal rail
traffic.
Road-Rail Vehicle
A vehicle that can travel on the road and also travel on rail by virtue of a rail
wheel guidance system under its own power. Such vehicles, unless they are in
the specific category known as Road-Rail Recovery Vehicles are not allowed to
operate outside possessions.
RAILTRACK
3
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Railway Group Standard
GM/RT2181
Issue THREE
Date April 1998
Page 4 of 7
Overhead Line Equipment (OLE) Warning
Line on Traction and Rolling Stock
Road-Rail Recovery Vehicle
A Road-Rail Vehicle, specifically designed and constructed to attend accidents
and incidents involving rail vehicles obstructing the line, which is permitted to
travel outside possessions in accordance with GO/RT3000 series (The Rule
Book) Section Q(iii).
Tare condition
Carrying no load and/or passengers; fuel and water tanks are empty; and any
temporary ballast weight is removed.
Train Operator
A body that operates rail vehicles on Railtrack controlled infrastructure.
4 OLE warning line
dimension and colour
An OLE warning line meeting the following criteria, shall be applied to T&RS
vehicles.
4.1 Dimension
The OLE warning line shall be 25 mm wide.
4.2 Colour
4.2.1 Except as specified in clause 4.2.2, the target colour shall be orange with
Chromaticity and luminance defined as follows:
Colour
orange
CIE Chromaticity co-ordinates
x
y
0.556
0.401
(under the CIE standard illuminant C)
luminance
factor β
0.244
The variation of the orange colour shall be within the four sided figure
delineated by the following co-ordinates with the luminance factor in the range
of 0.240 to 0.260.
CIE Chromaticity co-ordinates
x
y
0.520
0.400
0.560
0.360
0.570
0.370
0.600
0.400
Note: This colour may be achieved by using any one of the following options:
•
•
•
4
paint to BR 81 item No. 500;
Light Orange, BS 381C Reference No. 557;
orange warning tape to BR 62C item 94.
RAILTRACK
Uncontrolled When Printed
Document to be superseded as of 03/06/2017
To be superseded by GMRT2111 Iss 1 published on 06/12/2014
Railway Group Standard
Overhead Line Equipment (OLE) Warning
Line on Traction and Rolling Stock
GM/RT2181
Issue THREE
Date April 1998
Page 5 of 7
4.2.2 It shall be permissible to use black or white for the OLE warning line in
the following circumstances:
i) where the livery in the area where the OLE warning line is to be applied is
itself orange, such that an OLE warning line compliant with clause 4.2.1 would
not be clearly visible;
or
ii) where the livery contains areas of orange in close proximity to the area
where the OLE warning line is to be applied, such that the OLE warning line
although clearly visible, may not be recognised as such.
Black or white shall not be substituted for orange merely because it gives a
sharper contrast with the livery. Orange is widely recognised as the colour of
the OLE warning line on vehicles and it shall be used in all cases unless there
is a problem of visibility of the OLE warning line, or of recognising it as an OLE
warning line.
5 Position of the OLE
warning line
5.1 Height above rail level
5.1.1 The OLE warning line shall be positioned so that it is as high as possible,
taking into account the following requirements:
•
the OLE warning line shall be clearly visible when viewed from standing at
rail level;
and
•
the top of the OLE warning line shall be no closer than 600 mm to the
nearest train mounted, exposed live electrical equipment (the 600 mm.
distance shall be measured [when isolated] as a “taut string” distance).
Live electrical equipment shall be taken to include the whole of an
insulator;
and
•
except for rail vehicles that run on the Up and Down Moorgate lines
between Kentish Town Track Sectioning Cabin and Moorgate, the height of
the top of the OLE warning line shall not exceed an absolute maximum
value of 3565 mm above rail level when the vehicle is in tare condition with
new wheels and the suspension is in the service condition. Rail vehicles
that run on the Up and Down Moorgate lines between Kentish Town Track
Sectioning Cabin and Moorgate shall be subject to an absolute maximum
value OLE warning line height of 3390 mm;
and
•
RAILTRACK
except as described below, the OLE warning line shall be within the range
normally reached by carriage washing machines (not higher than
3300 mm above rail level) with the vehicle in tare condition with new
wheels.
In circumstances where the 3300 mm maximum dimension prevents the
warning line being carried over the top of areas which cannot be liveried, it
shall be permissible to increase the height of the line, where it passes over
such areas, to the absolute maximum value quoted above.
5
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Railway Group Standard
GM/RT2181
Issue THREE
Date April 1998
Page 6 of 7
Overhead Line Equipment (OLE) Warning
Line on Traction and Rolling Stock
5.1.2 Except under the conditions described in clause 5.1.4, the OLE warning
line shall be continuous and be positioned so that it is not less than 3100 mm
above rail level, when the vehicle is in tare condition with new wheels and the
suspension is in the service condition.
5.1.3 Where practicable the OLE warning line shall be above body side doors
and windows, vehicle end doors and windows, horns and destination and route
indicators.
5.1.4 Where there are glazed areas, ventilators, grilles, rubber elements or
other parts of the vehicle that cannot be liveried and which are of such a height
that the requirements of clause 5.1.2 cannot be met, then it shall be
permissible to:
(a) carry the OLE warning line below 3100 mm in cases where it can be
positioned sufficiently high for it to be readily recognisable as an OLE warning
line;
or
(b) terminate the OLE warning line immediately either side of the obstruction.
Whenever the OLE warning line is terminated to avoid an obstruction it is
essential that there is an "Overhead Live Wires" notice fitted (see GM/RT1041
for details of appropriate notice for rail vehicles) within 200 mm of each
termination of the OLE warning line, where practicable on the vehicle end and
at the same level as the OLE warning line.
6 Maintenance of
the OLE warning line
7 Training
6
The train operator shall ensure that the OLE warning line and associated
"Overhead Live Wires" notices are complete, clean and not obstructed, so that
they are clearly visible at all times.
Attention is drawn to the need for the training of persons working on or about
rail vehicles so that they understand the significance of the OLE warning line.
RAILTRACK
Uncontrolled When Printed
Document to be superseded as of 03/06/2017
To be superseded by GMRT2111 Iss 1 published on 06/12/2014
Railway Group Standard
Overhead Line Equipment (OLE) Warning
Line on Traction and Rolling Stock
GM/RT2181
Issue THREE
Date April 1998
Page 7 of 7
References
BR 81
GO/RT3000 series
BR 62C
BS 381C
RAILTRACK
Specification for Paints for Rolling Stock
The Rule Book
Schedule of Proprietary Branded Paints and Materials
British Standard Specification for Colours for Identification, Coding and Special
Purposes
GM/RT1041
Warning Signs and Notices for Electrified Lines
GM/RT2400
Design of On-Track Machines
GM/RT2402
Engineering Acceptance of Rail Mounted Maintenance Machines
7