Utility substations have be- come terrorist targets. At- tacks on electrical power generating equipment are a recent phenomena that few would have thought
possible—especially in the US. Threats to
the nation’s power stations are a serious
and growing problem, with perpetrators using gunfire and makeshift bombs to damage electrical substations and other utility
installations, undermining the stability of
the power grid.
Something needed to be done, and fast.
One answer to safeguarding the nation’s
utility equipment is the correct fence—
a strong but attractive concrete security
barrier that seamlessly blends into the environment where it is installed.
The idea to develop this new fence product came in 2013 when a California substation
transformer was damaged by a gunman shooting through the chain link fence that surrounded the facility. And, unfortunately, this attack wasn’t an isolated occurrence. More recently,
an explosive device was also found at an Arizona
power station when a bomb was allegedly passed
through a hole cut in a fence. Together these incidents and others have spawned a new industry—
the need for strong security barriers—ballistic
In analyzing the severity and implications of these
attacks, four criteria quickly emerged:
1. Demand for the development of ballistic resistant security fence and barrier products,
2. Need for attractive security solutions that duplicate the look of conventional fences,
3. Proven reliability of precast concrete fencing verified through independent third-party testing, and
4. Ensure the industry is aware of the existence of precast ballistic fence
and barrier alternatives.
Having installed many fences for electric utility providers, Superior
Concrete Products (SCP) recognized the need to develop a ballistic-resistant concrete barrier designed to safeguard power generating installations while providing an attractive alternative to wood, metal or
masonry fencing. In fact, SCP was already in the final phases of testing
when the Arizona attack took place.
With three decades of experience in the commercial and residential
fence industry, SCP has succeeded in establishing and raising awareness for the benefits, capabilities and cost-effectiveness of using precast
concrete vs. other types of materials for a wide variety of fencing and
barrier applications. By working closely with utility service providers
and other consumers, various fencing options are considered so the
purchaser can make more informed decisions when selecting the most
secure fencing material to protect against the physical threats to power
Prior to launching the new product line, SCP sought to prove the
strength and durability of ballistic resistant precast concrete fencing.
The company rigorously tested the product using a modified version of
the UL 752 Level 5 Ballistic Standard, which was set forth by Underwriters Laboratories, an independent agency setting safety standards
for several industries. Close Focus Research, an independent ballistic
test company located in California, conducted the study, thoroughly
examining the durability of a precast concrete test sample—affirming
the bullet resistant qualities of SCP’s Superior Fence product line.
To conduct the test, a certified engineer examined the ballistic resistance
of precast concrete by firing a series of .308 Winchester caliber, 7.62 NATO
rounds from 30 feet away into a section of the reinforced Superior Fence.
The bullets did not penetrate the precast concrete section of material.
Precast Concrete Fencing for Substations
By Todd Sternfeld
For Placing Pulling Lines or Fiber Optic
Cables into New, Old or Crowded Conduits
POWERED DUCT ROD PUSHER
; For use with GMP’s 1/2 inch ( 13 mm) duct rods
; Push/pull up to 300 lbs. (136 kg) of load
; Moves at a rate of up to 130 ft./min. (330 cm/min.)
; Override capability – allows you to rod occupied ducts
; Includes hydraulic power pack
; Pusher is trailer-mounted for
+ 1.215.357.5500 • GMPtools.com