ANSI 57-2 Ceramic Line Post Insulators for High Voltage

• Application: High-voltage, High-temperature
• Material: Porcelain
• Structure: Post Insulator
• Type: A Type Insulator
• Usage: High Voltage Power Transmission, Insulation, Electrical Installation
• Size of Bearing Capacity: 550KN
• Model NO.: ANSI 57-1, 57-2, 57-3, 57-4, 57-5, 57-6, 57-7
• Certification: CCC, CE, ISO9001
• Color: Brown or Gray
• Brand: Tkbl
• Delivery Time: 40 Working Days
• Creepage Distance: 559mm
• Net Weight: 9kg
• Cantilever Strength: 12.5mm
• Warranty: 1year
• Quality: High Quality
• Formula: C110
• Transport Package: Carton + Pallet
• Specification: ANSI
• Trademark: TKBL
• Origin: China
• HS Code: 8546209090
• Production Capacity: 30000 Tons/Year

Product Description

ANSI 57-2 Ceramic Line post Insulators for High Voltage 

specifications
 1. original insulator producer 
 2. superior properties of low and medium temperature resistance;
 3. strong aging resistance;
 4. nice appearance & long service time.
 5. comman glaze and semi-conductor glaze, color brown and gray both available.
 6. free sample, professional porcelain insulator supplier.
 

product description
porcelain spool insulator details and parameters

ANSI CLASS	With long stud	57-1L	57-2L	57-3L	57-4L	57-5L
	With short stud	57-1S	57-2S	57-3S	57-4S	57-5S
Fig. No.		1	2	3	4	5
Creepage Distance (mm)		356	559	737	1016	1143
Dry Arcing Distance (mm)		165	241	311	368	430
Cantilever Strength(kN)		12.5	12.5	12.5	12.5	12.5
Power Frequency Flashover Voltage	Dry /kV	70	100	125	140	160
	Wet/kV	50	70	95	110	130
Critical Impulse  Flashover Voltage	Positive/kV	120	160	200	230	265
	Negative/kV	155	205	260	340	380
Radio Influence voltage	Test Voltage to ground/kV	15	22	30	44	44
	Maximum RIV at 1MHz/uV	100	100	200	200	200