China 69kv Porcelain Line Post Insualtor

ITEM 1: HIGH VOLTAGE INSULATOR TYPE LINE POST, 69 kV, ANSI CLASS 57-36 REQUESTED
OFFERED ITEMDEscriptION SPECIFICATION1MATERIALPorcelain wet processed, YES 1.1Manufacturing standard NEMA / ANSI C29-7 YES 1.2Class ANSI 57-36 YES 1.3Mounting / position Pole / d horizontal YS 1.4Hardware used NOTE 2 YES 2DISTANCES REVIEWS 2.1Creepage > = 1755 mm YES 2.2Distance bow > = 489 mm (19.25 ") YES 3MECHANICAL 3.1Cantilever Strength > = 1270 kg /12.5kN YES 3.2Tensile strength > = 2,270 kg YES 4ELECTRICAL VALUES 4.1Typical application voltage 69 kV YES 4.2Flashover voltage low frequency dry > = 260 kV YES 4.3Flashover voltage low frequency wet > = 230 kV YES 4.5Flashover voltage of the positive pulse critical > = 430 kV YES 4.6Flashover voltage of the negative pulse critical > = 520 kV YES 4.7Basic insulation level According to requirements of the EDs yes 5RADIO INFLUENCE 5.1Test Voltage 44 kV yes 5.2RIV max 1000 kHz 200 microvolts yes 6DIMENSIONS 6.1Nominal diameter of insulating part
203.2 mm (8 ") yes 6.2Height specify 740MM 6.3Distance between holes in the basespecify 305MM 6.4Length of specify 740MM 7ConSTRUCTION DETAILS 7.1Color Grey YES 7.2galvanized hot YES 7.3Standard galvanized ASTM A153 YES 7.4Thickness of galvanized fittings 85 microns YES 7.5Type of base ANSI C29-7 (flat) YES 7.5.1Slot width (diameter) 13/16 " YES 7.5.2minimum length 15-16 " YES 8ConDITIONS OF POLLUTION NOTE 3 YES 9PACKAGING 9.1Packaging Lot According to requirements of the EDs YES 9.2Units per Lot1PC/1PACKAGE 9.3Approximate Net Weight50KG 10documentS AND CERTIFICATES OF MANDATORY NEMA / ANSI C29-7, NOTE 5 TYPE TESTING OF CHINA 10.1Test Design ANSI C29-1 YES 11Printing NOTE 4 YES 12SAMPLESAccording to requirements of the ED's YES NOTES: 1The insulating raw material shall be commercial quality excellent.
Porcelain insulators shall be manufactured by wet process.
All exposed porcelain insulators surface must be covered with a hard glassy, smooth, shiny and impervious to moisture compression type, which allows, through the natural rain water washing, easily kept free of dust and dirt waste caused by environmental pollution. The total surface of the insulator, except the burn area, shall be glazed and free from imperfections.
The porcelain used porosities not have to file; must be of high dielectric strength, high mechanical strength, chemically inert and high-melting.
If the composition of the alternatives in isolation (polymer or polymer concrete) must attach all relevant technical, containing specifications, standards and the comparative benefits with the required material (porcelain), for proper analysis by the CNEL without this meaning explicit acceptance. The technical committee or delegate approved alternative process if exposed with appropriate supporting rationale. 2The fittings shall be forged steel and hot dip galvanized according to ASTM A153 norms for hardware. Compliance with the shape of the base Line Post Insulator shall be subject to the provisions of ANSI standard C29-7 1996 (rev 2002), and the bolts and nuts shall comply with the test design C29-1 ANSI standard under explained in section 8.3.3 of ANSI C29-7.
3The insulators in their normal use may be in an environment with different degrees of pollution, so each ED will considerations in the selection of insulators under atmospheric pollution. For the particular case of HD CNEL cycle work (heavy duty) is requested. 4Cada aislador tiene que estar marcado en forma legible e indeleble y durable en el tiempo con la información mínima 1- Logotipo o marca del fabricante; y 2- Año de fabricación del aislador. 5Certificates of conformity of product or compliance required herein must be issued by accredited certification bodies, documentation to be endorsed by the OAE.
In the case of test reports, they must be issued by accredited laboratories, documentation to be endorsed by the OAE. These certificates and reports, will be a requirement that bidders submit to the procurement process.