ANSI Standard C29.7 Ceramic Porcelain Line 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.: C29.7
• Certification: CE, ISO9001
• Cantilever: 2800lbs.
• Neck Type: F
• Kv Rating: 46
• 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 57-3
Dimensions(ln)
Dring Arcing Distance		7.8
Leakage Distance		14-1/2
Mechanical Values(kV)
Cantilever Strength(lbs)		2800lbs
Electrical Values(kV)
Typical Voltage Class		45kV
Low frequency flashover	Dry	125kV
	Wet	100kV
Impluse flashover voltage	Positive	210kV
	Negative	260kV
Radio influence voltage	Test voltage to ground	30kV
	Max. RIV at 1000kHz	100kV
Net Weight(lb)		26.3 lbs

Type and usages of porcelain bushing insulators

1. ordinary porcelain bushing insulators: used in general transformer or reactor, can be used in the low voltage and medium voltage.

2. high-voltage porcelain bushing insulators: used with high-voltage systems connected to the transformer, and can withstand higher pressures.

3. organosilicone porcelain bushing insulators: composed of organosilicone resin and ceramic material, has the advantages of small dielectric constant, low dielectric loss, etc. It is mainly used for supporting the insulation support of high-voltage windings.

Porcelain casing as the core component of the transformer, bear the insulation support and heat dissipation of the dual role, can effectively protect the normal use of the transformer.