APTP Articles

Boosting Efficiency and Safety: Low Voltage Network Labelling Overhaul

Powerco, one of New Zealand’s largest electricity distributors, faced the widespread industry problem of confusion and delays in locating low voltage (LV) assets – even with up-to-date GIS records.

The Challenge: LV Asset Identification in the Field

The presence of multiple service pillars at similar locations, incomplete field records, and evolving regulatory requirements under Australian/New Zealand standards created:

  • Delays in outage restoration and fault response.
  • Increased operational costs due to misidentification.
  • Serious safety concerns for both contractors and the public.

With LV infrastructure now facing the same regulatory rigor as HV, Powerco’s target was real-time traceability, robust asset ID, and easy field access to live data.

The Solution: QR-Enabled, Rotag™ Laser-Impregnated Labels

Working with Identimark, Powerco designed and implemented a solution centered on QR codes impregnated into marine-grade Rotag™ aluminium tags. The Rotag system was chosen for its:

  • Lifetime readability guarantee: Each label stays legible for decades – virtually zero maintenance.
  • Extreme durability: Made from anodised marine-grade aluminium, stainless steel, or UV-rated plastics, Rotag tags are scratch, fade, and chemical resistant, achieving a 9 on the Mohs hardness scale.
  • Weather and corrosion resistance: Proven to function under -55°C to 550°C, in coastal, industrial, and even marine environments, without fading or corroding.
  • Customisability: Options for numbers, text, barcodes/QR, color coding, and shape – factory-engraved for identity and compliance across a wide range of assets.

QR-linked Rotag tag installed on a Powerco service pillar

Key Implementation Details:

  • QR codes link directly to live asset data – enabling field crews to scan and retrieve current pillar information, history logs, and maintenance requirements instantly.
  • Tags manufactured as 100x50mm plates, laser-impregnated for abrasion and UV resistance.
  • Installed with UV-rated Soflok nylon pop rivets and Natgum permanent adhesive.
  • Ensures secure, non-conductive attachments on flat, curved, and concrete surfaces.
  • Adapted for use near live electrical components – removes risk of accidental arcing found with conductive metal fasteners.

 

Trialling and Rolling Out the Solution

Tested in the harshest real-world conditions: Initial trials deployed over 30 Rotag QR tags in high-risk/high-exposure areas (schools, beachfronts, sports grounds).

About the Author

Identimark