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Step potential


The following summaries represent a sample of completed projects. Please contact LONGMONT if you require further information on any of our projects profiled here.

General Lightning Protection / Earthing Works

WA Rail - Clarkson and Cannington High Voltage yard earth design, specification, installation supervision and testing.

OPTUS / WA Water Authority - Thornlie substation, transfer potential mitigation earth system design, specify, test and certify.

RIO - Cape Lambert Jetty electrical earth incident investigation, testing, reporting and resolution.

Backfill Specialists - Paste Plant Injection, surface operations Lightning Protection and Earthing systems to prevent Lightning impulse importation to underground facilities.

Kounis Metals - Cape Lambert Control Room - Design, specification and certification of Lightning Protection system for Port operations control and MCC rooms, for transportable buildings in region of high lightning incident.

Pipeline Operators - Various - Design, specification and certification of Induced voltage mitigation and Lightning Protection system for pipeline construction and operations in regions of high lightning incident or HV reticulation Right of Way.


Outotec – Lightning Protection System and Earthing for a Paste Backhill Plant for Kibali in D.R.C

Dampier Bunbury Natural Gas Pipeline

Lightning Protection and Earthing

Client - Pipeline Operator [Various owners over time]

Project: Lightning Protection System design and specification for compliance mitigation of instrumentation failure in compliance with AS 1768 and AS AS 3000

Location: Karratha / Perth / Bunbury

Woodside Petroleum

Site Earthing Testing & Design

Project: Testing and recommendation for remedial action to replace all existing arth systems which have failed.

Location: Karratha

Design of an earth system specific to the tidal flushing of the site, allow for the electrode disintegration due to Cathodic DC systems, and to provide a standard compliant combined earth installation for High Voltage, Lightning Protection, Gas Pipeline impressed current Cathodic protection and Telecommunications purposes.


Annual injection tests to measure EPR and touch potential compliance for mining applications

Project: Annual compliance tests and certification

Location: Pinjarra. Huntley, Wagerup, Kwinna, Del Park

Conduct tests, report and certify EPR and Substation earth systems.

Blue Scope Steel - Whyalla

Test Earth Installation - Recommend remediation

Client: Peak Electrical Services for CCAI Electrical Consultants

Project: Plant Upgrade

Location: South Australia

Test system, recommend upgrade for all season compliance.