Its modular construction allows any combination of aspects to be built from standard parts. An aluminium body and low profile design minimises the weight of these large signals.
Despite its overall dimensions, the PLJI is extremely slim and lightweight:
- A 1 arm configuration weighs 15kg
- A 2 arm configuration weighs 25kg
- A 3 arm configuration weighs 35kg
- A 4 arm configuration weighs 45kg
A single arm signal showing how slim the PLJI untis are.
A 3-arm PLJI signal measures 1915mm wide by 1145mm high and weighs just 35kg.
A totally new approach has produced a system of lightweight signals and structures that delivers both high performance and significant cost savings
Primary drivers
Reduced initial costs of installation and infrastructure
Installed and maintained quickly and with minimum operational interference
Installed / maintained without plant equipment using people and people-operated “tools”
No routine maintenance
Minimum footprint
Minimum kinematic envelope for “inter-track” applications
Scope
Modular Programmes
New Renewal Programmes
Maintenance Replacements Lightweight or Conventional structures
Straight & Offset structures
Variable structure heights (up to 5.1m signal)
Maintenance
None expected (routine)
Standards
As mandated – test conventions, best practices and non-mandatory requirements
Alignment
Setting and beam checking without climbing
Repair
Minimal number of standard parts
Easy transportation and handling
Configuration Minimal number of part numbers / units Modular units to obtain configuration
Performance
24Vdc and 110Vac Meet current LED light levels, readability, availability and life expectancy Backward compatible to existing and new system requirements Health Checks