3M Power Facilities User Manual

September 2010
78-9000-0282-1-A
Recommendations for Marking  
Power \facilities Using 3M
\b EMS 
Electronic Markers
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Near-Surface Marker
A small marker which is well-suited for \fore holes 
in concrete or asphalt for marking \bush-mount 
facilities prior to repaving.
Ball Marker
Ideal for most applications, with a 
unique self-leveling feature. The core of 
the marker \boats in a non-toxic, non-
freezing liquid inside the \fall; so the 
marker can \fe dropped in a trench, and 
the self-leveling feature...

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The 3M™ electronic marker system helps make the job of 
precisely locating underground facilities easier and faster. 
The basic component of the system is a durable electronic 
marker which is buried above key underground elements 
during construction or maintenance. A stand-alone 3M
™ 
Dynatel™ marker locator model 1420-iD, an integrated 
3M™ Dynatel™ cable/marker locator 2500-iD series, or 
an integrated 3M™ Dynatel™ 2200M-iD series provides 
fast and accurate location of a marker...

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2.0  General Recommendations 
for Electronic Marker 
Placement
2.1  Recommended Placement
• All ‘Items of Plant’ (facility items) that are assigned 
unique reference numbers on facility maps and records. 
• Handholes
• Buried splices of all types
• Repair points
• Buried service drops: Service stubs
• Slack loops
• Depth changes
• Laterals
• Bends: changes of direction, arcs
• Depth changes: lateral deflection
• Fiber optic facilities with no metallic conductor
• Conduit stubs •...

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cover with 6 in. 
(150 mm) o\f rm 
soil \be\fore \backll
tie-downta\bs
ID num\ber tag
Inset
minimum 4 in.
(100 mm) separation\)
\from metallic sur\face\)*
ca\ble
tie
See inset
1422-XR/iD  40 inches (1.0 m) 
  (using CE-approved 
  3M marker locator)
  5 \feet (1.5 m) 
  (using U.S. 3Mmarke\)r 
  locator)
1405-XR  5 \feet (1.5 m) 
3.0 
Recommended Ball Marker 
Spacing and Depth
Note:    See Section 4 for recommended depths of other 
marker form factors.)
3.1  Recommended Depth for Ball...

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3.5  Alternate Ball Marker Tie Down Procedure 
for Deeper \facilities
1. Tie the ball marker to a section of steel rebar using a 
cable tie. 
Rebar
Attach ball marker\F
using cable tie
Facilit\f Being Marke\Fd
Bedding
\b0 in (254 mm) nominal
3.6  Additional Placement Recommendations for 
3M
\b Ball Marker 1422-XR/iD
Additional applications are possible with the XR/iD series 
of ball markers due to their ability to store specific facility 
information. Facility information that may be...

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4.2 3M\b Ball Marker 1422-XR/iD (iD Marker)
This marker is similar to the 
1402-XR ball marker in size 
and form. Additionally, the 
1422-XR/iD ball marker 
contains an RFID microchip, 
which allows introduction and 
storage of facility data. Each 
marker comes pre-programmed 
with a unique 10-digit 
identification number. This pre-
programmed number is also attached to the marker on a 
removable bar-coded tag, which can be peeled off before 
installation and attached to facility maps....

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4.4  3M\b Near Surface Markers 1433 and 
1433-XR/iD
3M™ Near Surface Markers 1433 
Non-iD (passive) version 
marker and 1433-XR/iD (iD 
version marker) are 
recommended for urban 
applications. Near-surface 
markers allow for convenient marking of facilities under 
asphalt or concrete or for marking facilities after 
construction has completed. The marker is installed 
vertically at a shallow depth in a hole drilled or gouged in 
soil or in street pavement. Near-surface markers are...

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4.6 3M\b \full-Range Markers 1251 and 
1251-XR/iD
The full-range marker is designed
 for marking deep underground 
facilities. Its large diameter is 
also valued by facility owners 
as a ‘dig shield’ that can help 
protect the facility from 
damage by being cut or 
damaged by a shovel during 
excavation. When placed above 
the facility, the full-range 
marker serves as a cover which warns of encroachment to 
the underground facility.
3M\f Full-Range Markers 1251 and 1251 -XR/i\b
Case...

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6.0  3M\b Dynatel\b Electronic Marker Information 
6.1  3M\b Electronic Markers \for Power \facilities Part Numbers & Descriptions
Marker Type Marker ColorNon-i\b (Passive) Marker Part # Id Marker Part #
Ball Markers Red 1402-XR1422-XR/iD
Disk Markers (Do Not Direct Bury) Red 1412-XR1412-XR/iD
Near-Surface Markers Red 14331433-XR/iD
Mid-Range Markers Black w/Red Printing 1256—
Full-Range Markers Red 12511251-XR-iD
6.2 3M\b Electronic Marker Write & Read/Detection Ranges
U.S. Model...

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Track and Trace Solutions6801 River Place Blvd.
Austin, TX 78726-9000
1-800-426-8688
www.3M.com/dynatelPlease Recycle. Printed in USA.
© 3M 2010. All Rights Reserved.
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3M and Dynatel are trademarks of 3M Company\f