T&D Buyer's Guide

Doble Engineering Company is a global leader in diagnostic test equipment, software and engineering services for the electric power industry. Founded in 1920, it helps utilities and energy asset owners improve reliability, assess system health, and optimize operations through advanced diagnostics and expertise worldwide.

Tallman Equipment is an employee-owned company and has served the electrical transmission and distribution industry for over 70 years. We offer a comprehensive range of services to linemen, including new tool sales, rentals, ground and jumper set manufacturing, transformer sling production, and expert testing and repair.  

Tallman carries a wide selection of the best tools and equipment from the top brands in the utility industry.  

Our rental inventory includes stringing blocks, ground and jumper sets, battery powered cutting and crimping tools, fiberglass hot arms, hoists, dynamometers, rubber goods, and more.  

The Tallman Assembly Department custom-builds ground and jumper sets as well as performing dielectric testing and repair on used grounds and jumpers.  

Our rope department specializes in transformer sling assemblies as well as rope splicing and custom rope solutions.  

Our repair department services all tools commonly used in the utility industry including hydraulic, pneumatic, gas, and battery-powered equipment, stringing blocks, dynamometers, and mechanical hoists. 

Tallman offers complete repair and reconditioning of fiberglass tools, including hot sticks, conductor and support gins, ladders, extension arms, shotgun sticks, and more.  

The Tallman Rubber Lab cleans and performs dielectric testing on rubber gloves, blankets, sleeves, and other rubber goods and cover-up. All testing is done in accordance to ASTM standards.  

At Tallman Equipment, our vision is to deliver quality, convenience, and reliability to our customers by adapting to their needs and always striving to do the right thing.

Critter Guard designs and manufactures animal prevention products to protect substations and transformers from critter-related power outages. Many utilities have standardized using Critter Guard products for its effectiveness and proven reliability in all weather conditions.

Critter Guard BLOCKS points of entry via utility poles and power lines. With Critter Guard, critical components aren't simply covered up like the competition.

Common features of Critter Guard products include:

• No need to de-power the line for installation or substation maintenance.

• Nothing to replace or lose during service.

• Easy Installation

Critter Guard’s product line consists of: Line Guard, Pole Guard, and BirdBloc. All of these systems are defined by one characteristic — No Access.

Evluma is committed to developing affordable, long-lasting and environmentally low-impact LED lighting solutions that fundamentally change the landscape of the outdoor utility lighting market. Evluma’s high standard of customer service plus its background in innovative lighting technologies and software cooperatively influence the design of its utility-grade products. Evluma has added a family of roadway luminaires to its product line. Available in three sizes, the RX1 (small) is the winner of a BrightStar award.

Founded by Fouad Brikci, Ph.D., Zensol specializes mainly in instruments targeted at the electrical energy industry and maintenance services. 

Zensol has become the pioneer in a new testing method to detect problems in on line tap changers, circuit breakers and reclosers. We have the knowledge to use this innovative technology while the transformers and circuit breakers are on line. 

Designer by our engineers, they are portable and suitable for harsh environments (extreme temperatures from -40°C to +60°C). They are known for their sturdiness and their performance and a life expectancy of 15 years and more. 

Safety focused manufacturer of heavy duty switch-rated plugs and receptacles and other connectors ranging from 15- 600 amps. Meltric products eliminate safety concerns associated with traditional pin & sleeve and twist type devices. The Decontactor™ Series plugs and receptacles feature dead front construction, silver-nickel butt style pressure contacts and ingress protection up to NEMA 4X and IP 66/67. Products are UL and CSA approved to make and break under load and have a 10kAIC short circuit rating. Products can be pre-wired, assembled as cord-sets, mounted on panel boxes or in custom fabrications.

For nearly 50 years, SDT North America has helped the world’s most reliable companies achieve their operational objectives through better asset reliability. Our technology empowers maintenance and reliability teams to foresee failures, eliminate energy waste, and make smarter, safer decisions.

Ultrasound is often the first indicator of change in an asset’s condition. Its sensitivity to friction, impacting, and turbulence makes it one of the most versatile condition monitoring technologies available—capable of detecting subtle defects long before other methods.

At SDT, we harness this power across the 8 Pillars of Ultrasound:

• Bearing Condition Monitoring

• Precision Lubrication

• Compressed Air & Gas Leak Detection

• Steam Trap & Valve Testing

• Electrical System Inspection

• Hydraulic System Testing

• Tightness Testing

• Pump Cavitation Detection

Our portable ultrasound data collectors and acoustic imaging cameras are known for their accuracy, repeatability, and ease of use—trusted by industries across the globe to increase uptime, improve sustainability, and reduce operational risk.

Discover why SDT is known as The World’s Favorite Ultrasound Company—and how we help you bring reliability into focus.