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Anchor Shaft Corrosion Protection Systems

To protect your guyed tower, we recommend an anchor shaft excavation inspection for all guyed towers which are more than a few years old if they have not had a corrosion protection system. (CPS). Since 99% of anchor shaft corrosion & shaft failures normally occurs in the lowest 1′ of the anchor shaft, it is prudent to carefully excavate & inspect the entire length of each anchor shaft. Installing our high quality Cathodic Protection System (CPS) ensures the safety, security & life expectancy to your guy wire tower structures. Our cathodic protection systems have proven they can last over 30 years when used in conjunction with a resilient anchor shaft protective coating.

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Each of our high potential magnesium anodes has the following physical properties:

    - Backfill material in each anode package: 75% Gypsum, 20% Bentonite, 5% Sodium Sulfate.

    - Connecting core wire is 20′ long, 8 gauge stranded copper, heavily jacketed with HMWPE coating.“DES”.

    17 lb Magnesium anode “core”. Material consists of:

    - Magnesium / High quality 98.839 %.

    - Aluminum 0.01 % maximum.

    - Manganese 1.0 % maximum.

    - Silicon 0.05 % maximum.

    - Iron 0.03 % maximum.

    - Nickel 0.01 % maximum.

The following is our procedure for measuring a CPS / cathodic protection system at each anchor fan plate location:

Temporarily disconnect the anode wire connection clamp from the guy wire anchor shaft or its fan plate, Using a volt meter, test for the DC voltage present between the anchor fan plate & the anode wire connector. Finding a DC voltage reading between the anode wire & the anchor in excess of -1.15 volts is a good sacrificial CPS. A DC voltage reading of less then -.90VDC is too low & may be a sign of a dormant, disconnected or depleted CPS which requires additional high quality anodes added to the anode bed to bolster the DC voltage until voltage achieved is upwards of -1.15VDC or higher. Contact us for additional anodes since low anode voltages may not be preventing anchor shaft corrosion or if you have questions.

 


Cathodic Protection System
- Part Numbers
- Tower Width
- Shipping Weight


Prices US Dollars

Catalog Tower Drawing

DT-CPS-1 anchor protection kit 
Up to 12" Wide

Shipping Weight - 108 lbs 

$772.20

DT-CPS-1 anchor protection kit for towers up to 12″ wide with 3 guy anchors. (3) - 17 lb  High Potential Magnesium anodes in the kit. 

Note: Each complete packaged anode weighs a total of 36 lbs with it's magnesium core and expansive soil.

DT-CPS-2 anchor protection kit 
For Towers 13″ to 30″ wide

Shipping Weight - 216 lbs 

$1,530.36

DT-CPS-2 anchor protection kit for towers 13″ to 30″ wide with 3 guy anchors. (6) - 17 lb  High Potential Magnesium anodes in the kit.

Note: Each complete packaged anode weighs a total of 36 lbs with it's magnesium core and expansive soil.

 

 

DT-CPS-3 anchor protection kit 
For Towers 31″ to 42″ wide

Shipping Weight - 324 lbs 

$2,288.52

 DT-CPS-3 anchor protection kit for towers 31″ to 42″ wide with 3 guy anchors. (9) - 17 lb  High Potential Magnesium anodes in the kit.

Note: Each complete packaged anode weighs a total of 36 lbs with it's magnesium core and expansive soil.

DT-CPS-4 anchor protection kit 
For Towers 43″ to 60″ wide

Shipping Weight - 432 lbs 

$2,948.40

DT-CPS-4 anchor protection kit for towers 43″ to 60″ wide with 3 guy anchors. (12) - 17 lb  High Potential Magnesium anodes in the kit.

Note: Each complete packaged anode weighs a total of 36 lbs with it's magnesium core and expansive soil.

All Dakota Towers products are backed by a 2-year product workmanship warranty to the purchaser from the date of sale.

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How Can We Help You?

Contact us with any questions - info@greatplainstowers.com 

We would be happy to answer your questions and set up a meeting with you.

 Great Plains Towers
                  126 Sixth Street West
                  West Fargo, North Dakota 58078
 
701 282 2236 ,  800 853 2236
 
 
 
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