REF-PS-109 / Rev 1.01
Geographical Information System (GIS)
Guide to Symbols
The purpose of this document is to improve the clarity of information
displayed on our Web based GIS Viewer so that stakeholders can gain a
deeper understanding of how our Network is constructed and operated.
A Geographical Information System is a computer system for capturing, storing, checking and
displaying data related to positions on Earth’s surface. GIS can show many different kinds of
data on one map.
Scottish and Southern Energy Power Distribution (SSEPD) offer access to the Web based GIS
Viewer system by logging in to the web address www.ssepd.co.uk/CompetitioninConnection/
and registering for access which will allow you access to the viewer which will display electrical
network infrastructure.
Web based GIS viewer
To ensure your security and the security
of our network information you will need
to register online for access.
On our Web Based GIS Viewer you will be
able to identify detailed mapping as well as
SSEPD’s network information. This guide is
to help interpret the symbols used with the
system so that you are able to understand
how our electrical network operates.
The map on the right shows the areas covered by SSEPD,
Scottish Hydro Electric Power Distribution (SHEPD) North
of Scotland and Southern Electric Power Distribution
(SEPD) in the South of England.
SSEPD was formed in 1998 with the two different
networks falling under one company however the
symbols used by each network areas are slightly different.
Therefor in this guide we illustrate both North and South
symbols. Also included are gas network symbols as these
are also available on our GIS map and want to make it
clear which is gas and which are electric.
SHEPD
a
SEPD
1
Geographical Information System (GIS)
Guide to Symbols
GIS Electric Symbols for Southern England (SEPD)
LV Underground service cable
LV Underground mains cable
2kV-3.3kV Underground cable
6.6kV Underground cable
11kV Underground cable
22kV Underground cable
33kV Underground cable
Pole
Pole mounted transformer
Substation
Link box
Pillar
Major pipeline
Assumed route
Cross section
66kV Underground cable
132kV Underground cable
LV Overhead cable
2kV-3.3kV Overhead cable
6.6kV Overhead cable
11kV Overhead cable
22kV Overhead cable
Ducting
Flying stay
PME Earth
Neutral earth
Oil/Gas gauge
Oil/Gas tank
Balancer
33kV Overhead cable
Regulator
66kV Overhead cable
Pit
132kV Overhead cable
Schematic connector
Fibre optic cable
Supply location-property
Pilot cable
Supply location-other
Circuit breaker
Supply location-street furniture
Switch connector
Pole box
Straight joint
Tee joint
Trifurcating joint
Pot end joint
Capped end joint
Sealing end joint
Service connector joint
O/H Connector joint
Wall box joint
2
Geographical Information System (GIS)
Guide to Symbols
GIS Electric Symbols for Northern Scotland (SHEPD)
Fibre optic cable
Pilot cable
Link box
Pillar
6.6kV-11kV Underground cable
33kV Underground cable
Substation
132kV Underground cable
Water pipeline
Low voltage underground cable
Oil pipeline
6.6kV-11kV Overhead line
Gas pipeline
33kV Overhead line
Switch disconnector
132kV-275kV Overhead line
Circuit breaker
Low voltage overhead line
Supply point
Poles
Tower
Pole termination
Joints
Ducting
3
Geographical Information System (GIS)
Guide to Symbols
GIS Environment Guide
Countryside Agency
English Nature / Scottish Natural Heritage
Areas of Outstanding Natural Beauty (AONB)
Site of Special Scientific Interest (SSSI)
National park
National Nature Reserve (NNR)
RAMSAR
Special Area of Conservation (SAC)
Environment Agency
Special Protection Area (SPA)
Borehole
Ancient Woodland
Water extraction point
Sensitive waterway
Source protection zone
Areas of Concern
Vulnerability zone
Contaminated
Cadmium
Forestry Commission
Methane
Access
Heavy Metal-Unclassified
Ownership
Asbestos
Ordnance
Mercury
English Heritage / Historic Scotland
Restricted Access
Monuments
SEPA
Flood Area
Flood Location
If in doubt ask Scottish & Southern Energy Power Distribution
mapping.services@sse.com
4