SpanGuard™ ABS
Standard Power Line Marker
This is the power line marker ball that has set the standard for decades! Routinely installed on hot lines by helicopter, SpanGuard ABS markers are rated up to 115 kV and made of durable ABS with superior color retention. Spiral wire preforms are used for secure attachment. SpanGuard ABS markers are available international orange, yellow, or white, and in 9”, 20”, 24”, and 36” diameters.
MADE IN USA
SpanGuard ABS Applications
The FAA advises that 36” power line markers be used on high transmission lines and hazardous river crossings. Smaller 20” power line markers are permitted on less extensive power lines or on lines in approaches to airports below 50 feet. Each power line marker should be a solid color, and the FAA suggests that alternating colors be used on critical lines to optimize visibility in all seasons.
See FAA Advisory Circular 70/7460-1L (Dec. 2015) >
Spiral Preform Attachment
SpanGuard ABS markers are securely attached to the conductor with spiral formed armor rods. Armor rods are matched at time of order to the specific size, type, and diameter of line.
SpanBrite™ Nighttime Option
SpanBrite reflective tape is an option that makes the marker visible up to 2500 feet away at night, typically near small airports and hospitals.
SpanGuard ABS Assembly & Installation
SpanGuard ABS power line markers are easy to install on the ground or from a bucket, and they are ideally suited to installation by helicopter. This makes it possible to install markers on otherwise inaccessible lines across rivers or deep canyons, or where it is not feasible to take the line out of service.
The markers can be largely assembled on the ground in a “clamshell” configuration with the spiral preform in place. In the air, the preform is ready to wrap around the line and only the three bolts closest to the installer need to be installed.
SpanGuard ABS Ordering Information
SpanGuard ABS power line markers are a custom, made-to-order product. Please contact us directly to place an order. Note that a purchase order is required to establish your place in the production schedule.
Starts at: $206.85
This is the marker that has set the standard for decades! Routinely installed by helicopter on hot lines. Spiral wire preform for secure attachment. Superior color retention. 9″, 20″, 24″, 36″.
Related products
SpanGuard™ AL High Temperature Power Line Marker
12", 24", 30" & 36" aluminum markers for high kV or high temperature ACSS/ACCR lines rated up to 500 kV or 250° C (482° F). Direct attachment to live line. Lightweight: 36" marker weighs only 20 lbs.
FastBall™ Power Line Marker
Fast installation from bucket truck on lines up to 100 kV. Fits nearly any diameter line or bundled lines. Safe for OPGW lines. Can be stocked by utilities and distributors. 20” and 24” diameters.
SpanGuard™ EHV 115 kV+ Power Line Marker
Developed for installation on lines up to 345 kV, our EHV markers have a special coating and other design features to reduce corona effects that can lead to burning or melting with standard markers.
Redball™ Low Cost Marker
These economical 9" and 20" acrylic markers attach to the conductor with rubber grips. Satisfies FAA requirements. Can upgrade at time of order for higher voltages, spiral wire preform attachment, and ABS material.