BAREHAND LIVE LINE WORK

CONDUCTIVE SUIT — METHODS EVOLVE

Barehand Live Line Work Conductive Suit – The concept of Barehand Maintenance on Energized Transmission Lines dates back to the 1960’s when workers began working on energized transmissions lines without hotsticks while being supported by insulated devices. Today lineworkers energize themselves at the full potential of transmission lines while wearing a Conductive Suit & Boots and being supported by an insulating device such as a bucket truck, insulated platform, from helicopters, or directly on the conductor.

SUPERIOR COMFORT & PERFORMANCE

Carraro Tecno LogoThe Carraro Tecno Conductive Wear design of one-piece or two-piece conductive suits, modernizes the decades old concept of shielding a worker at transmission level voltages. The superior comfort, best electrical performance and excellent durability result from using highly flexible ultra-fine silver fibers, the best electrically conducting metal element on earth to make the best conductive wear in the industry.

MEET IEC 60895:2020 — All of CARRARO TECNO Conductive Wear (suits & footwear) meet the IEC 60895:2020 Standard requirements. Reports are available upon request.

Barehand Live Line Work Conductive Suit

Barehand live line work, or potential working involves placing the worker in direct electrical contact with an energized overhead line. The worker might work alongside the lines, from a platform that is suspended from them, or may sit or stand directly on the line itself. In all cases, the worker’s body is maintained at the same voltage as the line. It is imperative that the worker maintain appropriate and adequate limits of approach to any part at a different potential.

The first procedures for barehand working were developed in 1960 by Harold L. Rorden, a high-voltage engineer for American Electric Power.[4] Techniques were further refined following field and laboratory tests.

There are a number of ways in which the worker can access the live parts:

The worker can access from a specialist type of mobile elevating work platform (MEWP) termed an insulating aerial device (IAD) which has a boom of insulating material and which all conductive parts at the platform end are bonded together. There are other requirements for safe …..

Source: wikipedia.org – Live-Line Working

CONDUCTIVITY of VARIOUS METALS

STAINLESS STEEL 1.45 x 10*6 — LEAST EFFECTIVE CONDUCTOR
GOLD 4.10 x 10*7
COPPER 5.96 x 10*7
SILVER 6.30 x 10*7 ● BEST CONDUCTOR ●

Units σ(S/m) at 20°C