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High Voltage Post Insulators , Electrical Porcelain Insulators 3 Years Guarantee

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High Voltage Post Insulators , Electrical Porcelain Insulators 3 Years Guarantee

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Large Image :  High Voltage Post Insulators , Electrical Porcelain Insulators 3 Years Guarantee

Product Details:
Place of Origin: CHINA
Brand Name: HIVOLT
Certification: CE/SGS
Model Number: 57-1
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: wooden pallet
Supply Ability: 20000 pcs per month
Detailed Product Description
Material: Porcelain C-130 Standard: ANSI C29.7
With Assembly Bolt: Yes , Long Bolt Or Short Bolt Color: Grey
OEM: Available Neck: F Neck
High Light:

Post Type Insulator


Porcelain Post Insulators

porcelain ANSI C29.7 standard line post insulator 57-1



ANSI C29.7 standard porcelain line post insulator 57-1 character :

Product technical performance :

  Technical Specification Unit Value
1 Total length mm 229
2 Max. Shed Diameter mm 145
3 Creepage Distance mm 356
4 Cantilever Strength KN 12.5
5 Power frequency Flashover Voltage    
  dry KV 70
  wet KV 50
6 Critical Impulse flashover Voltage + KV  120
7 Radio interference voltage  test voltage KV 15
  Max. RIV at 1 MHz μV 100


HIVOLT line post insulators 57-1 are available for  vertical mounting in either tie top design.

​the unit  is vertical mounting on a crossarm .

HIVOLT line post insulator are one single piece porcelain . they are inherently free from both radio and television interference without any treatment. their trim, sturdy sheds enable them to withstand attacks from stones , bullets 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 the wide ANSI standard wire groove is provided with a head and neck designed to enable the use of either warplock or standard wire ties.

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




The ANSI 57-1 porcelain line post insulators are used on distrbution lines . These insulators are commonly installed vertically on metal or wooden structures based 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 .

​it can save transportation cost , and easy for assembly in distribution lines.

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

we offer 3 years quality guarantee .

OEM product are available .

Contact Details
Dalian Hivolt Power System Co.,Ltd.

Contact Person: canning

Tel: +8613942017540

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