Electric Power Utility Locating
Know where to dig! The 3M™ Electronic Marker System (EMS) helps save electric utilities time and money by enabling utility field crews to quickly pinpoint the location of underground electric facilities, including cable runs, splices, vaults, conduits and road crossings. Using EMS markers during construction, installation and maintenance virtually eliminates the time consuming search for hard-to-locate underground electric cables. 3M also offers wide product support and service for increased safety, performance and reliability.
3M markers operate even in the presence of metal conduit or pipe, metallic conductors, fences, AC power lines and electronic markers of other utilities. All EMS markers used for undergrond electric cable location are color-coded to APWA standards for visual reference and power utilities have their own frequency, helping reduce the risk of accidentally locating and excavating other undeground electric facilities. For power utilities, all underground electric cable markers are red in color.
Using 3M EMS markers during construction, installation and maintenance virtually eliminates the time consuming search for hard-to-locate facilities. 3M's EMS Power series can be used to locate:
- Buried splices
- Service drops
- Buried transformers
- Street lighting
- Road crossings
- Distribution loops
- Conduit stubs
- Repair points
- Service laterals
- Handhole covers
- Manhole covers
- Utility crossings
3M Locating & Marking Products
3M™ Dynatel™ Locators combine simple interfaces, large backlit high-resolution graphics, excellent balance and ergonomics with precision locating capabilities to help you quickly and accurately identify underground assets.
3M™ Dynatel™ Locators can be used to trace pipe and cable paths, locate sheath faults, provide accurate pipe, cable or Sonde depth measurements, locate buried electronic markers, read/write to 3M iD Markers and interface with GPS instruments to create accurate maps of underground facilities.
3M™ Dynatel™ Locators are available in a range of configurations from fully-featured pipe, cable, fault and electronic marker locators to basic cable avoidance systems.
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3M™ Ball Marker
Engineered for narrow trench applications up to 5’ in depth, the 4”-diameter ball marker has a unique self-leveling feature that helps ensure an accurate, horizontal position regardless of how it is placed in the ground. The ball contains a mixture of water and propylene glycol (a common additive in toothpaste, hair gels etc. and generally recognized as safe for use in foods by USFDA). The mixture is readily biodegradable in the environment and will not harm humans, wildlife or the environment in this application.
3M™ Near-Surface Marker
The near-surface marker is ideal for marking underground and street access facilities up to 2’ for Passive (Non-iD marker) and 3’ for iD marker in depth. Its 3.5” long cylindrical size and shape allows for easy installation in asphalt, concrete or rock without extensive digging or drilling.
Designed for marking applications at depths up to 6’, marker spokes in the 8.25” diameter mini-marker help stabilize it in the correct position after placement.
3M™ Full-Range Marker
The full-range marker is suited for deep applications up to 8’. Its 15”-diameter makes it ideal for use as a digging shield over sensitive underground facilities.
3M™ Disk Marker
Extended-range disk markers are four inches in diameter and have a vertical range of five feet. They provide an easy, accurate method of locating flush-mounted facilities which become covered by backfill or other obstructions, such as snow or vegetation. Easily affixed to the underside of non-metallic lids or covers. Not intended for direct burial in the soil.
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3M EMS Rope 7700 Series
3M EMS Rope 7700 Series incorporates an EMS marker installed into a polyester rope every eight feet and can be quickly installed above the pipe/cable or within conduit. It is tough enough to be installed down to four feet (1.2 m) through rugged terrain and provides durability for plowing or Horizontal Directional Drilling (HDD) applications.
3M EMS Caution Tape 7600 Series
3M EMS Caution Tape 7600 Series uses a new EMS marker technology embedded into a caution tape for installation near or above the buried facility. It can be buried down to two feet (0.61 m) and is ideal for early detection/warning due to this low depth.
Atlanta International Airport shares lessons learned with latest runway project
A new 9,000-foot runway at the Hartsfield-Jackson Atlanta International Airport is said to be one of the most complex structures of its kind in the world. It spans a major interstate highway and includes an 18.5 million cubic yard embankment. Here, FAA and airport officials share some insights learned along the way when it comes to putting in underground systems that can be easily traced. Read story (PDF, 3.01M)
U.S. Department of Energy Lab: Complex Utilties Network
Lawrence Livermore National Laboratory (LLNL) , a U.S. Department of Energy laboratory operated by the University of California, has a complex network of underground utilities that rivals most municipalities - only their utilities are housed within a one square mile campus. As a result, LLNL relies on underground markers and remote locating products to keep their utilities in order and minimize errors when performing maintenance or installing new facilities. Read story (PDF, 2.86M)