Performance of 115 kV fiberglass transmission crossarms in wet and salt fog environments

Journal Article · Fri Apr 01 04:00:00 EST 1983 · IEEE Trans. Power Appar. Syst.; (United States)

DOI:https://doi.org/10.1109/TPAS.1983.317943· OSTI ID:5935829

Shah, K R; Sarkinen, C F; Verma, V

This paper discusses 60 Hz-dielectric tests performed on 115 kV solid fiberglass transmission crossarm-insulator assemblies to evaluate their performance in wet and salt fog environments. Testing included the following variables: (1) wet and dry conditions, (2) new and used crossarms and insulators, (3) type and number of insulators, and (4) salt fog salinity. Analysis of test results shows that the surface coating of fiberglass insulation is susceptible to degradation in a salt fog environment. Once this coating is eroded and the glass fibers are exposed, carbonized tracking develops. The fiberglass crossarm thus loses its electrical strength.

• Research Organization: Shah and Associates, Inc., 4 Professional Drive, Gaithersburg, MD 20879
• OSTI ID: 5935829
• Journal Information: IEEE Trans. Power Appar. Syst.; (United States), Journal Name: IEEE Trans. Power Appar. Syst.; (United States) Vol. 102:4; ISSN IEPSA
• Country of Publication: United States
• Language: English

Related Subjects

200300* -- Electric Power Engineering-- Power Transmission & Distribution-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
42 ENGINEERING
420800 -- Engineering-- Electronic Circuits & Devices-- (-1989)
CHEMICAL REACTIONS
COATINGS
CORROSION
DIELECTRIC PROPERTIES
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
ELECTRICAL PROPERTIES
ELECTRICAL TESTING
EQUIPMENT
FIBERGLASS
FOG
FREQUENCY RANGE
HZ RANGE
MATERIALS TESTING
NONDESTRUCTIVE TESTING
PERFORMANCE
PHYSICAL PROPERTIES
POWER TRANSMISSION LINES
PROTECTIVE COATINGS
SALINITY
TESTING