T&D Buyer's Guide

Did you know 1 out of every 200 transformers experiences failure each year? The safety and cost risks of an unexpected failure can be catastrophic. Dynamic Ratings products and services provide real-time data to help you make smart asset management decisions. Online monitors give you the confidence to extend the life of existing assets using real-time data. Monitors evaluate the equipment in your substation (transformers, circuit breakers, switchgear, and more) and measure their performance to make sure everything is working properly. If something looks out of place, an alarm will notify you of the problem. This information allows utilities to optimize maintenance plans and the performance of their assets to changing system requirements. Learn how we can help at www.dynamicratings.com.

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.

Sediver is the pioneer and industry leader in high voltage toughened glass insulation technology for more than 70 years. Our outstanding track record confirms the quality of our products, with 600 million toughened glass insulators in service, on both AC&DC lines, in 150 countries and every climatic condition. In North America, nearly 40M  Sediver glass insulators have been providing reliable service to more than 100 utilities since more than 50 years.

Sediver Research Center has developed state of the art smart solutions for real-time monitoring of leakage current & predictive maintenance. Sediver technical assistance team helps support our  customers by providing T/ line insulation design expertise and testing of aging insulators for end-of-life diagnostics.

Sediver offers a full range of:

• Cap & Pin toughened glass insulators for AC & DC Transmission lines (ANSI & CSA standards), with M&E Ratings up to  200 000 lbs (860 KN).

• Glass suspension insulators for distribution lines 15-69KV,

• RTV coated glass insulators (Sedicoat) for polluted environments.

• Glass Insulators for insulated HV/T-line shield wires.

• Large diameter glass insulators for mitigation of bird droppings on suspension strings.

Testing facilities in the USA

Sediver's West Memphis laboratory regularly performs such work, providing US utilities with clear factual diagnostics.

• State-of-the-art testing equipment

• Sediver’s unique expertise in the evaluation of the results

• Full support from Sediver’s extensive R&D Team

• Experience with complex case studies for refurbishment/upgrades of AC and DC lines

Evluma manufactures LED lighting products that assist universities, utilities and municipalities replace and retrofit existing HID fixtures. The OmniMax LED replacement lamp is the ‘Perfect Fit’ for decorative post top lighting. Evluma's AreaMax is “The Utility Standard” for street and area lighting. All Evluma products operate with ConnectLED Bluetooth controls. Now offering a full line of globes for post top fixtures!

Tech Products, Inc. Is your source for quality identification products to the utility, pipeline and (OEM) original equipment market including, utility pole markers, valve tags, machinery data plates and safety signs for substations and transmission towers.

Our Everlast® brand is in use on many of the fiber optic cables, pipelines, and distribution systems throughout the northern and southern hemisphere. It is a unique product that does not use ink to convey its message. In fact, our first customer, Delaware Electric Coop is still using the product to mark their poles today. 

Our Fasttag miniature cable marker product line has been used by the US military on its battleships, the energy industry to identify underwater cable and pipes on offshore oil rigs and many of the fiber optic cables of the cable industry.

Our Mission

To ensure that all people globally have reliable, safe and secure energy in a sustainable world.

About Us

Founded in 1920, Doble Engineering Company ensures reliable, safe and secure power for all. We do this by providing comprehensive diagnostics and engineering expertise for the energy industry.

Doble is part of the Utility Solutions Group of ESCO Technologies Inc. (NYSE: ESE) and serves customers around the globe. Doble is an ISO 9001 & ISO/IEC 17025 & 17034 certified company.

Spectrum Industries, Inc. is a supplier of low, medium and high voltage current and potential transformers, transducers, shunts, analog and digital meters, power monitors, power analyzers, protector relays and switches. Same day shipping on stock items. Our main priority is customer service, we also specialize in finding replacements for old and/or obsolete meters and transformers.