ANSI 56-4 Porcelain Ceramic Pin Type Insulator

• Customization: Available
• Application: High-voltage
• Material: Porcelain
• Model NO.: ANSI 56-4
• Structure: Pin Insulator
• Type: A Type Insulator
• Usage: High Voltage Power Transmission, Electrical Installation
• Connection Method: Trough Type
• Certification: CE, ISO9001
• Color: Brown/Gray
• Brand: NJREC or OEM
• Pin Hole Diameter: 1-3/8inchs
• Neck Type: K
• Leakage Distance: 27in.
• Min. Pin Height: 10ins
• Insulator Type: Plain, Radio Freed
• Transport Package: Wooden Pallet
• Trademark: NJREC
• Origin: China
• HS Code: 85462090

Product Description

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.

ANSI Class/Standard		ANSI 56-4
Dimensions(ln)
Pin Hole Diameter - Inchs		1-3/8
Minimun Pin Height		10
Leakage Distance		27
Mechanical Values(kV)
Cantilever Strength(lbs)		3000lbs
Electrical Values(kV)
Typical Voltage Class		kV
Low frequency flashover	Dry	140kV
	Wet	95kV
Impluse flashover voltage	Positive	225kV
	Negative	310kV
Low frequency puncture voltage		185kV
Radio influence voltage	Test voltage to ground	30kV
	Max. RIV at 1000kHz	200kV
Net Weight(lb)

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.