and Grounding Design
The Lightning Security Specialists
The world’s best and most critical expertise for the proper
implementation of IEEE Standard 1692; which is a treatise for
multi-purpose communications and high-voltage installations. We have
found from forty one (41) years of experience that it’s far too easy
to "get it wrong" in cookie-cutter applications of the
tried-and-true requirements of Standard 1692, leaving expensive
equipment vulnerable to costly damage and weeks off line for
The most important aspect in the application of Standard 1692 is
that the final protection package design has to be perfectly correct
in every aspect to provide failure-proof protection. One small error
in proper application can make a protection design package totally
We provide no products, only
consulting, design, and recommendations for the best lightning
protection and grounding installations for substations, electronic
circuit boards, equipment components, power plants, high-voltage corridors,
and broadband services for school systems.
Ernest M. Duckworth, Jr. P.E. , Director
|| lightning protection and grounding consulting and design for 911 PSAP sites,
PCS towers, radio and TV transmission towers.
lightning protection and grounding consulting and design for telephone cell
towers and buildings, military communication sites, schools and churches.
lightning protection and grounding consulting and design for military
protection and grounding design for oil company batteries, beam
units, and ocean rigs.
protection and grounding design for wind farms, radar antennas, and
lightning protection and grounding consulting and design for high-rise
buildings, swimming pools, police and fire stations.
lightning protection and grounding consulting and design for railroad
communication sites and railroad
switching facilities as well as for every other kind
of building, site and facility.
We offer only the World's top
Lightning Protection Expertise
structures from lightning does not protect the equipment
those structures from lightning damage. However, we design the
grounding and protection
professional engineering design support:
1) for the protection
of equipment, structures, property, and personnel from lightning
and the effects of the resulting ground potential rise (GPR).
ASCE’s Journal of Performance of Constructed Facilities:
"Guide for Protection of Equipment and Personnel from
2) for lightning
protection systems and grounding systems. NFPA 780 Std. for the
Installation of Lightning Protection Systems 2000 Edition, and
UL 96A Installation Requirements for Lightning Protection
the grounding of electronic equipment, industrial and commercial
power per IEEE Std. 1100-2005, “Powering and Grounding
Equipment”, and IEEE Std. 142-2007, “Grounding of Industrial
and Commercial Power Systems”
4) for communication
services being placed into high voltage environments such as
substations, power plants, or in high voltage corridors. IEEE
Std. 487-2000 Recommended Practice for the Protection of
Wireline Communication Facilities Serving Electric Supply
4) for communication
services associated with E-911 PSAP, PCS, Radio and TV
Transmission Towers. ASCE’s Journal of Performance of
Constructed Facilities: "Guide for Protection of
Equipment and Personnel from Lightning"
5) for structural,
civil, and systems engineering;
6) and will travel to
any lightning problem site at a moments notice.
LPGI & Affiliates’
experts, each with over 35 years of personal experience, provide
We guarantee our grounding designs to 5
ohms or less for the most difficult wireless tower locations on
granite mountain tops or we will refund our design fee in full ! Details
full range of services.
WE GUARANTEE UNDER 5 OHMS DESIGN, EVEN IN SOIL THAT IS MOSTLY GRANITE *American
Society of Civil Engineers (ASCE) Journal of Performance of
Constructed Facilities,Vol. 16. No. 3, August 1, 2002, "
Guide for Protection of Equipment and Personnel from
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