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Professional Porcelain Line Post Insulator High Voltage N Neck

Professional Porcelain Line Post Insulator High Voltage N Neck

  • Professional Porcelain Line Post Insulator High Voltage N Neck
Professional Porcelain Line Post Insulator High Voltage N Neck
Product Details:
Place of Origin: CHINA
Brand Name: HIVOLT
Certification: CE/SGS
Model Number: ANSI 57-4
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: wooden pallet
Supply Ability: 20000 pcs per month
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Detailed Product Description
Material: Porcelain C-130 Standard: ANSI C29.7
With Assembly Bolt: Yes , Long Bolt Or Short Bolt Color: Brown
OEM: Available Neck: N Neck
High Light:

Post Type Insulator


Porcelain Post Insulators

Professional Porcelain Line Post Insulator 55kV High Voltage N Neck  ANSI 57-4


ANSI C29.7 standard porcelain line post insulator 57-4 character :

Product technical performance :

  Technical Specification Unit Value
1 Total length mm 432
2 Max. Shed Diameter mm 180
3 Creepage Distance mm 1020
4 Cantilever Strength KN 12.5
5 Power frequency Flashover Voltage    
  dry KV 150
  wet KV 125
6 Critical Impulse flashover Voltage + KV  255
7 Radio interference voltage test voltage KV 44
  Max. RIV at 1 MHz μV 200


HIVOLT line post insulators 57-4 are available for vertical mounting in either tie top design.

​the unit is vertical mounting on a crossarm .

HIVOLT line post insulator are one whole piece porcelain without joints . they are free from both radio and television interference without any further treatment. their trim, sturdy sheds enable them to withstand attacks from stones and power arcover .

they are especially useful for service on industrial feeders where maximum reliability is most valuable in providing optimum service continuity.

​on the tie top unit ( N Neck) the wide ANSI standard wire groove is provided with a head and neck designed

​we can provide short stud or long bolt for insulator assembly .




The ANSI 57-4 porcelain line post insulators are used on distrbution lines  with voltage up to 55kV. These insulators are commonly installed vertically on metal base to support the
conductor . tie top procelain can hold conductor firmly and suitable for different size of conductors.


Competitive Advantage:

high strength aluminum porcelain C-130 is used for insulation body .

the insulator have very light net weight yet high mechanical strength .

​the insulator have excellent self-clean character , much easier for maintenance..

OEM product are available .


Contact Details
Dalian Hivolt Power System Co.,Ltd.

Contact Person: Canning

Tel: +86 411 84950806

Send your inquiry directly to us (0 / 3000)

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