Bolted Tension Strings for (150) mm2 Aluminum Alloy Conductor

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Model NO.:
NLL-1 NLL-4 NLL-5 NLD-1
Standard:
IEC IEEE ANSI BS ISO En
Type:
Pull-Line Fitting
Transport Package:
Cartons Pallets Wooden Case
Origin:
China Nanyang
Technics:
Injection Molding
Usage:
Substation Fittings, Line Fittings
Trademark:
OEIpower
Specification:
IEC IEEE
HS Code:
854690000

Product Description

Product Description

The Composite Insulators

Bolted Tension Strings for (150) mm2 Aluminum Alloy Conductor

The Composite Insulators comply with the latest editions of and amendments to, the standards/specification listed below:

CSA                                   CANADIAN STANDARDS ASSOCIATION

G164-4                        -       Hot dip galvanizing of Irregular Shaped Articles

CAN/CSA                  -       Quality Assurance Program Categories 2299.3

ANSI                           -      AMERICAN NATIONAL STANDARDS INSTITUTE

C29.1                           -      American Standard Test Method For Electrical Power Insulators

C29.7                           -      American Standard For Wet-processed Porcelain Insulators (High Voltage Line Post Type) Electrical Power Insulators

987-1985                     -       IEEE Guide For Application of Composite Insulators

D750                            -      Recommended Practice for Operating Light and Weather Exposure Apparatus (Carbon Arc Type) For Artificial Weather Testing Of Rubber Compounds.

D1499                          -      Recommended Practice For Exposure of Plastics.

D2240                          -      Rubber Properties, Durometer Hardness

D2565                          -      Recommended Practice For Operating Xenon-Arc Light And Water Exposure Apparatus Plastics.
The weathershed of the Post Insulators shall be manufactured from either Hydrated Alumina Ethylene Propylene Copolymer (EPM) as the primary constituent or Silicone Elastomers. The weathershead shall be injection moulded and brought to final cure state in one continuous process to prevent internal undercure or surface overcure. Additionally, the weathershead shall provide hydrophobic surface, even after exposure to tropical marine environment, ultra violent rays and moisture.
Core

The rod or the core is manufactured from Fibreglass, having 70-75 by weight of auxiliary aligned glass fibre bonded by an organic resin. The rod is either be cast or pultruded.
The end fittings are have the following properties:

Bolted Tension Strings for (150) mm2 Aluminum Alloy Conductor

i.          are compressed onto the Fibreglass rod member
ii.         are not move relative to the central Fibreglass rod at applied loads equal to two times the rated Routine Test Load or maximum designed cantilever loads
iii.        are attracted to the rod after completion of all external heat processes used to cure or bond component parts.

The insulator are provided load limiting bases that will deform under longitudinal loading of more than 100% of the rated design cantilever load.
Performance Characteristics

The Polymeric Insulators are meet the under listed performance characteristics.

ITEM	11kV	33KV
Dry Flashover Withstand	90kV	180kV
Wet flashover withstand	70kV	165kV
Positive Impulse Critical flashover	145kV	300kV
Maximum Radio Interference Voltage	Below 1micro volt	Below 1 micro volt
Design Tension Strength	100kN	100kN
Residual Strength after Power Arc	80kN	80kN
Mechanical Proof Test Load	45kN	45kN
Maximum Sustained Load	34kN	34kN
Design Torque Rating	83 Nm	83 Nm

The insulator are suitable for accepting both aluminium and copper conductors having cross-sectional areas ranging from 35mm² to 265mm². The insulators are designed for mounting on the angle and channel crossarms specified in Specification E14

All exposed ferrous part shall be treated against corrosion. Treatment by hot dip galvanizing is preferable.

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Bolted Tension Strings for (150) mm2 Aluminum Alloy Conductor

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