Product Details

Specifications

ANSI 56-3 Porcelain pin type insulator
1.Factory price
2.Timely delivey
3.Available for OEM
4.ANSI,CESI,DIN,BS CLASS

ANSI Standard 56-3 Porcelain Pin Type Insulator

Product Description

About the Porcelain pin type Insulator

As the name suggests, the 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.

Advantages of Porcelain pin type Insulator

High reliability through accumulated technology

Excellent long-term performance

Pecifications
1.Certificated by IEC ANSI GB ISO9001
2.We can design and produce according to the drawings.
3.We supply insulators with reliable quality reasonable price and good service.
4.We attend 2007 Hannover exhibition, India electricity 2008 exhibition,2008 Hannover exhibition,2009 and 2010 Dubai Middle East electricity exhibition

Specifications

Technical drawings

Technical Specifications

ANSI Class				56-3
Insulator Type				Plain	Radio Freed
Neck Designation in accordance with ANSI C29.6				K
Voltage Rating (U.S.Practice) /KV				34.5
Leakage Distance/in (mm)				21(533)
Dry Arcing Distance/in (mm)				9-1/2(241)
Minimum Pin Height/in (mm)				8(203)
Cantilever Strength/Average/lb (kN)				3,000(13)
Average Flashover Voltage		Low-frequency	Dry/kV	125
			Wet/kV	80
		Critical-impulse	Positive/kV	200
			Negative/kV	265
Low Frequency Puncture Voltage/Average/kV				165
Radio-Influence Voltage Date	Test Voltage to Ground/kV			30		30
	Maximum RIV at 1,000kHz/μV			16,000		200
Net Weight/lb				17

NOTES:

1.Surfaces coated with semi-conductive glaze are considered as effective leakage surfaces and the distance over them is included in the leakage distance.

2.The side-wire groove shall seat a mandrel with a diameter of 1-1/16 inches. The top-wire groove shall seat a mandrel with a diameter of 1-3/4 inches.

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