ANSI 57-2/57-3 Porcelain Ceramic Line Post Station Post Insulator

• Application: High-voltage
• Material: Porcelain
• Structure: Pin Insulator
• Type: A Type Insulator
• Usage: High Voltage Power Transmission, Electrical Installation
• Connection Method: Trough Type
• Model NO.: ANSI 57-2/57-3
• Certification: CE, ISO9001
• Color: Brown/Gray
• Brand: NJREC or OEM
• Cantilever: 2800lbs.
• Neck Type: F
• KV Rating: 34.5
• Transport Package: Wooden Pallet
• Trademark: NJREC
• Origin: China
• HS Code: 85462090

Product Description

Nanjing Rainbow Electric Co.,Ltd manufactures a complete line of wet process porcelain line post insulators for application through 88 kV.
All insulators are solid core wet process porcelain and are manufactured and tested in conformance with ANSI Standard C29.7.

ANSI Class/Standard		ANSI 57-2
Dimensions(ln)
Dring Arcing Distance		7.8
Leakage Distance		11-1/2
Mechanical Values(kV)
Cantilever Strength(lbs)		2800lbs
Electrical Values(kV)
Typical Voltage Class		35kV
Low frequency flashover	Dry	110kV
	Wet	80kV
Impluse flashover voltage	Positive	180kV
	Negative	205kV
Radio influence voltage	Test voltage to ground	22kV
	Max. RIV at 1000kHz	100kV
Net Weight(lb)		19.1 lbs

Technical Specifications:
Tie Top type with Stud Base (Horizontal & Vertical Application):
Porcelain Line Post Insulators of ANSI 57-1, 57-2, 57-3, 57-4, 57-5, 57-6
Porcelain pin type insulator is mounted on a pin on the cross-arm on the pole. There is a groove on the upper end of the insulator. The conductor passes through this groove and is tied to the insulator with annealed wire of the same material as the conductor. Pin type insulators are used for transmission and distribution of electric power at voltages up to 33 kV. Beyond operating voltage of 33 kV, the pin type insulators become too bulky and hence uneconomical.

NJREC manufacturers three classes of pin type insulators. Low voltage pin types are manufactured and tested to the requirements of ANSI Standard C29.5, high voltage pin types to ANSI Standard C29.6, and special designs for use in areas of high contamination.