A prestige strata complex on Marathon Road, Darling Point, was dealing with a combination of problems common to ageing outdoor electrical infrastructure: failing garden lights, a faulty transformer, and carpark lighting that simply wasn’t providing adequate coverage or movement detection. Scott Electrics replaced the failing components, upgraded the carpark lighting with new LED floodlights and motion sensing, and — critically — replaced the inadequate outdoor electrical connections that were the real reason the system kept failing in the first place.
Project Details
| Location | Marathon Road, Darling Point NSW |
| Property Type | Prestige Strata Complex |
| Scope | Garden lighting repair, carpark lighting upgrade, outdoor wiring rectification |
| Issues Resolved | Faulty transformer, faulty PIR sensor, inadequate outdoor connections, poor carpark coverage |
| Outcome | Fully weatherproofed, motion-activated garden and carpark lighting system |
The Challenge — Failing Outdoor Lighting & Inadequate Connections
Outdoor electrical infrastructure in strata buildings takes a different kind of punishment than indoor circuits — constant exposure to moisture, temperature variation, salt air in coastal Eastern Suburbs locations like Darling Point, and the simple wear of running 24/7 detection and lighting systems year after year. When that infrastructure was installed using connections that weren’t properly rated for outdoor use in the first place, failure isn’t a matter of if — it’s a matter of when.
At Marathon Road, the strata committee was dealing with multiple compounding issues:
- The lower garden lighting had failed completely, traced to a faulty transformer
- The PIR (passive infrared) motion sensor controlling the lower garden area had also failed, meaning the lighting wasn’t responding to movement even when power was available
- The existing carpark and driveway lighting was inadequate for the area it needed to cover — insufficient brightness and no proper motion detection coverage across the full carpark zone
- The underlying outdoor electrical connections throughout the affected area were assessed as inadequate for an outdoor location — the root cause behind the recurring faults
This last point is the one that matters most for the long-term outcome. Replacing a failed transformer or sensor without addressing substandard underlying connections is a temporary fix — the same conditions that caused the original failure will cause the next one. Scott Electrics’ approach addressed both the immediate faults and the underlying cause.
The Solution
Garden Lighting Restoration
The lower garden lighting circuit required two specific component replacements to restore full function.
- Faulty garden light transformer replaced — restoring power to the lower garden lighting circuit
- Faulty PIR sensor replaced for the lower garden area — restoring automatic motion-activated lighting
- All connections associated with this circuit inspected and rectified as part of the broader outdoor wiring upgrade
Carpark & Driveway Lighting Upgrade
The existing carpark and driveway lighting was assessed as inadequate for the area — both in terms of light output and motion detection coverage. Scott Electrics supplied and installed a new lighting solution sized correctly for the space.
- 2x 50W LED floodlights supplied and installed, covering the driveway and carpark area
- Both floodlights controlled by a single PIR sensor, providing full coordinated movement coverage across the entire carpark zone — rather than two independently triggered lights creating inconsistent activation
- LED floodlights selected for high light output, energy efficiency and long service life in an outdoor strata environment with heavy usage
A single PIR sensor controlling both floodlights ensures consistent, full-area illumination whenever movement is detected anywhere across the carpark — rather than a scenario where only part of the area lights up depending on where the movement occurs.
Outdoor Wiring Rectification
The root cause of the recurring faults was addressed directly: the existing electrical connections throughout the affected outdoor area were removed and replaced with infrastructure properly suited to an outdoor strata environment.
- All previous inadequate connections identified and removed
- New cabling installed on suspended catenary wire and conduit — the correct method for running outdoor cabling across open spans in a strata environment
- Cable route run from the garage, alongside the sandstone rock wall, to the carpark and garden lighting points
- All connections and junctions properly weatherproofed and rated for ongoing outdoor exposure, including coastal conditions
Running the new cabling on catenary wire and conduit rather than relying on unsupported or inadequately protected cable runs is a meaningful upgrade in itself — it keeps the cabling secured, protected from physical damage, and properly separated from the sandstone wall surface and surrounding garden environment.
Why the Underlying Connections Mattered More Than the Visible Faults
It would have been straightforward to simply replace the failed transformer and PIR sensor and call the job done — that addresses the symptoms the strata committee reported. But the connections feeding that circuit were not adequately rated for an outdoor location, which means the failure pattern would have continued regardless of how many individual components were swapped out.
This is a common issue in older strata outdoor lighting installations: components get replaced reactively as they fail, but the underlying wiring and connection infrastructure — installed once, often years or decades earlier — never gets reassessed. Scott Electrics’ approach at Marathon Road addressed the actual cause, not just the visible symptoms, which is what delivers a lasting result rather than another callout in twelve months.
The Outcome
The Marathon Road strata complex now has a fully functional, properly weatherproofed garden and carpark lighting system built to handle ongoing outdoor exposure without the recurring failures the previous installation experienced.
| Garden lighting | Fully restored — new transformer and PIR sensor |
| Carpark lighting | 2x 50W LED floodlights — full coordinated PIR coverage |
| Wiring infrastructure | Fully replaced — catenary wire and conduit, properly weatherproofed |
| Underlying cause | Addressed — inadequate connections removed and replaced |
| Expected outcome | Significantly reduced likelihood of recurring faults |
Common Outdoor Lighting Issues in Eastern Suburbs Strata Buildings
Marathon Road is far from an isolated case. Scott Electrics regularly attends strata properties across Darling Point and the wider Eastern Suburbs and Inner East with similar outdoor lighting issues, including:
Transformer failure. Outdoor lighting transformers have a finite service life, typically shortened further by heat, moisture and the electrical load of older, less efficient fittings. When a garden lighting circuit fails completely, a faulty transformer is one of the first things to check.
PIR sensor failure. Motion sensors exposed to outdoor conditions — particularly salt air in coastal Eastern Suburbs locations — degrade over time. A PIR sensor that has stopped triggering, triggers inconsistently, or stays on constantly all indicate sensor failure requiring replacement.
Inadequate connections for outdoor use. This is the issue most likely to cause recurring problems rather than a single failure. Connections rated for indoor use, or simply not properly sealed against moisture ingress, will fail repeatedly in an outdoor environment regardless of how many times the visible faulty component is replaced.
Insufficient lighting coverage. Older carpark and driveway lighting installations were often designed for a lower standard of illumination and security than is expected today. Upgrading to properly sized LED floodlights with coordinated PIR control significantly improves both safety and security for strata residents.
Frequently Asked Questions
How do I know if my strata building’s outdoor lighting connections are inadequate?
The clearest indicator is recurring faults — if the same circuit or area keeps failing despite individual components being replaced, the underlying wiring or connections are likely the actual cause. A licensed electrician can inspect outdoor connections to confirm whether they are correctly rated and weatherproofed for the location, or whether they need to be upgraded.
What is a PIR sensor and why does it fail?
A PIR (passive infrared) sensor detects movement by sensing changes in infrared radiation — typically body heat — within its field of view, and triggers connected lighting in response. PIR sensors fail due to age, moisture ingress, physical damage, or degradation of their internal components from prolonged outdoor exposure. A failed PIR sensor can result in lights that don’t activate, activate inconsistently, or stay on permanently.
Why use catenary wire and conduit for outdoor cabling in a strata property?
Catenary wire provides physical support for cabling run across open spans — such as from a garage to a garden or carpark area — keeping it elevated, secured and protected from physical damage. Conduit provides additional protection against moisture, UV exposure and mechanical damage. This combination is the correct approach for outdoor cable runs in a strata environment, particularly compared to unsupported or surface-run cabling, which is more vulnerable to damage and weather degradation over time.
How often should strata outdoor lighting be inspected?
Scott Electrics recommends annual inspection of strata outdoor lighting systems, including transformers, sensors, fittings and connection points — with more frequent informal checks after severe weather events. Regular inspection identifies developing faults before they result in complete failure, and is particularly important for coastal Eastern Suburbs properties where salt air accelerates the degradation of outdoor electrical components.
Does Scott Electrics provide ongoing maintenance for strata lighting systems?
Yes. Scott Electrics provides scheduled maintenance programmes for strata buildings across Darling Point, the Eastern Suburbs and the Inner East — covering garden lighting, carpark and driveway lighting, common area lighting and emergency lighting systems. Contact us to discuss a maintenance programme for your strata property.
What size LED floodlight is needed for a strata carpark?
Floodlight sizing depends on the area to be illuminated and the desired light coverage. For the carpark and driveway area at Marathon Road, 2x 50W LED floodlights with coordinated PIR control provided adequate brightness and full movement coverage across the space. Scott Electrics assesses each carpark’s specific dimensions and layout to recommend the correct floodlight specification and sensor configuration.
If your strata building or commercial property has garden lighting, carpark lighting or outdoor electrical issues — recurring faults, inadequate coverage, or ageing infrastructure that’s overdue for an upgrade — Scott Electrics provides fast, licensed electrical solutions across Darling Point, the Eastern Suburbs and the Inner East.