Why Fiberglass Guy Strains are More Dependable

Posted by Chad Davis on Aug 1, 2019 3:00:00 PM

Fiberglass Guy Strains may be installed anywhere along the guy wire to help protect against stray current that may be on the guy caused by lightning strikes or other sources. These fiberglass units serve as a replacement for porcelain insulators or johnny balls, and they extend the insulation length. They offer numerous advantages, including:

  • variable lengths
  • easy terminations
  • resistance to fracture caused by brittleness
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Topics: Distribution, Pole Line Hardware, Safety

Hubbell Power Systems, Inc. Assists Oncor in Restoring Power to More than 340,000 Customers

Posted by Hubbell Power Systems on Jul 18, 2019 2:00:00 PM

On Sunday, June 9, 2019, a severe storm hit Dallas-Fort Worth, Texas resulting in more than 350,000 Oncor customers losing power. Reported as the sixth largest storm in Oncor’s history, Hubbell Power Systems, Inc. immediately offered support to help restore power as quickly and safely as possible. 

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Topics: Storm Response

Make a Smart Choice with a Smart Tool

Posted by Chad Davis on Jul 11, 2019 8:00:00 AM

No more squinting to read the voltage from the end of the hot stick – or relaying information to the crew on the ground. The new CHANCE® Transmission Multi-Range Voltage Indicator® (TMRVI), lets your entire team accurately monitor transmission voltages on a mobile device or Apple Watch using the free MRVI app with an easy-to-read interface.

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Topics: CHANCE Products, Safety

5 Steps Toward Keeping Cover-Up Like New

Posted by Joseph Cardona on Jul 2, 2019 2:45:33 PM

Download the Cover-up Care Guide

Here are five ways linemen can ensure their temporary protective cover-up equipment continues to function safely and for as long as possible:

  1. Take a close look every day

Don’t assume a cover is ready to use. Cover up may look fine at a glance, but it’s worth looking a little closer. Stretch out your rubber covers with a rolling or peeling action and look for cracks, scratches, moisture, or other defects. If you find something concerning, remove it from service and tag it to be tested or discarded.  Check the inside and outside surfaces as some defects may be hiding inside.

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Topics: Lineman Grade Tools

Understanding Distribution Arrester Types for Effective Equipment Protection

Posted by Haley Engel on Jun 4, 2019 8:30:00 AM

There are three distribution arrester types commonly used to protect overhead distribution equipment from the damaging effects of overvoltage. IEEE C62.11 defines Normal Duty (ND) and Heavy Duty (HD) classes by their ability to withstand certain current impulse levels. The third, Heavy Duty Riser is a type, or variation, of the HD classification and utilizes a larger diameter Metal Oxide Varistor (MOV) disc.

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Topics: Arresters

12 Steps to Install Square Shaft and Round Rod Anchors

Posted by Tim Staelens on Apr 17, 2019 3:09:00 PM
  1. Once all safety concerns have been addressed, attach the Kelly bar adapter and installing tool assembly to the Kelly bar on the installing truck.
  2. Insert the upper end of the anchors’ lead section into the installing tool. Position the anchor at the desired guy location and at a near vertical position; screw the first helix into the ground.
  3. When the first helix is buried, begin to make the angular adjustment for the desired guying angle.
  4. Remember, final angular adjustments should be made before the second helix penetrates the ground.
  5. When the installing tool becomes 12”-18” from the ground, disconnect it from the section in the ground and reconnect it to the next extension.
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Topics: Anchors

Maintaining your Anchor Tools

Posted by Tim Staelens on Mar 11, 2019 1:07:00 PM

As with most mechanical devices, CHANCE® anchor-installing tools periodically require maintenance checks to ensure peak performance.


In the case of the shear-pin torque limiter, (see drawing below to the right) you should be able to rotate the tool shear halves independently from one another using a smooth-turning action. If rotation cannot be done by hand or if movement is challenging, disassemble the torque indicator to check the thrust bearing, washers and/or pin for wear.

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Topics: Anchors

Gapped vs Gapless Distribution Arresters

Posted by Haley Engel on Mar 1, 2019 2:00:00 PM

When comparing different arrester designs, it is important to understand how the arrester was built to correctly evaluate the amount of protection it will provide. The IEEE C62.11 standard covers two types of Metal Oxide Varistor (MOV) distribution arresters that are available today, internally gapped and gapless. These arresters might look identical from the outside, but the different internal module design affects how the arrester protects voltage sensitive equipment.

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Topics: Arresters

7 Steps to Install Expanding Rock Anchors

Posted by Tim Staelens on Feb 13, 2019 11:25:00 AM
  1. Choose anchor site carefully. Rock anchors will only perform effectively in solid competent rock (Class 0 Soil).
  2. Drill the hole into the competent rock a minimum depth of 12 inches along the drill steel. Be sure to drill so that the anchor rod will be in line with the guy.
  3. Holes should be drilled so the diameter is optimally an 1/8th inch larger than the diameter of the unexpanded anchor. For example, the hole drilled for a R315 is 1-7/8 inch diameter. However, drill bits are usually available in 1/4 inch increments. In practice, a 2 inch diameter hole is drilled for the R3_ series anchors and a 2-1/2 inch dia. hole is drilled for the R1_series anchors. Be sure to thoroughly clean the drilled hole of rock dust and debris.
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Topics: Anchors

13 Steps to Replace an Insulator on a Tangent Structure

Posted by John Delsman on Jan 14, 2019 10:48:00 AM

The safety procedures described below are the basic steps and necessary equipment linemen will employ when replacing an insulator from an aerial lift truck on a tangent structure with rubber gloves.

  1. A hold-off is recommended on the line to ensure the line is locked out after an automatic protection operation.
  2. A tailboard briefing is held with all workers before the work starts to ensure all procedures are understood.  Proper safety precautions should be observed. Each person should know specifically what they are required to do. All workers should 
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Topics: Lineman Grade Tools