Factory directly 100kn Glass Insulator - High Voltage 70kn Disc Suspension Toughened Glass Insulator U70BL – Johnson

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We always do the job to be a tangible group making sure that we can provide you with the top top quality as well as ideal value for 22kv Pw-22-A Pin Insulator, 45kv Post Insulator, C4-125 Post Insulator, We are willing to give you the best suggestions on the designs of your orders in a professional way if you need. In the meantime, we keep on developing new technologies and creating new designs so as to make you ahead in the line of this business.
Factory directly 100kn Glass Insulator - High Voltage 70kn Disc Suspension Toughened Glass Insulator U70BL – Johnson Detail:

Product Design Drawings

High Voltage 70kn Disc Suspension Toughened Glass Insulator U70BL (9)

Product Technical Parameters

IEC designation U70B/146 U70B/127
Diameter D mm 255 255
Height H mm 146 127
Creepage distance L mm 320 320
Socket coupling mm 16 16
Mechanical failing load kn 70 70
Mechanical routine test kn 35 35
Wet power frequency withstand voltage kv 40 40
Dry lightning impulse withstand voltage kv 100 100
Impulse puncture voltage P.U 2.8 2.8
Power frequency puncture voltage kv 130 130
Radio influence voltage μv 50 50
Corona visual test kv 18/22 18/22
Power frequency electric arc voltage ka 0.12s/20kA 0.12s/20kA
Net weight per unit kg 3.6 3.5

Installation and maintenance

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3 Installation

3.1 Appearance Check
The insulators shall be inspected one by one according to chapter 28 of GB/ T1001.1-2003 and this standard before installation, and the use of insulators that do not meet the above requirements shall be prohibited.

3.2 Insulator resistance measurement
Insulation resistance of porcelain insulators shall be measured one by one before installation. Insulators that do not meet the requirements of DLT626 shall not be used.

3.3 Precautions
During installation, insulators should be handled with care, not thrown, and avoid collision and friction with sharp objects.

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4 Operation and Maintenance
4.1 document
The operating unit shall establish insulator files in accordance with DL/T 626.

4.2 maintenance
During inspection and inspection of insulators, if it is found that the lock pin is missing or the insulator has zero value, live operation or power failure repair shall be adopted, and the insulators shall be inspected in time according to the following provisions.
If one of the following conditions occurs, the insulator can be determined to be invalid. A) Cracks and yellow rust spots appear on the iron cap (acid reflux); B) Bending and cracking of steel feet; C) Severe arc burning of iron cap and steel foot;
D) iron cap, insulation and steel foot are not on the same axis: e) porcelain cracks occur;
F) Insulation parts are seriously burned by partial discharge and partial shedding occurs; G) Cracks or skew appear in the cement at the steel foot;
H) Corrosion of steel feet occurs as described in DLT626-2005.

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Product detail pictures:

Factory directly 100kn Glass Insulator - High Voltage 70kn Disc Suspension Toughened Glass Insulator U70BL – Johnson detail pictures

Factory directly 100kn Glass Insulator - High Voltage 70kn Disc Suspension Toughened Glass Insulator U70BL – Johnson detail pictures

Factory directly 100kn Glass Insulator - High Voltage 70kn Disc Suspension Toughened Glass Insulator U70BL – Johnson detail pictures

Factory directly 100kn Glass Insulator - High Voltage 70kn Disc Suspension Toughened Glass Insulator U70BL – Johnson detail pictures

Factory directly 100kn Glass Insulator - High Voltage 70kn Disc Suspension Toughened Glass Insulator U70BL – Johnson detail pictures

Factory directly 100kn Glass Insulator - High Voltage 70kn Disc Suspension Toughened Glass Insulator U70BL – Johnson detail pictures

Factory directly 100kn Glass Insulator - High Voltage 70kn Disc Suspension Toughened Glass Insulator U70BL – Johnson detail pictures

Factory directly 100kn Glass Insulator - High Voltage 70kn Disc Suspension Toughened Glass Insulator U70BL – Johnson detail pictures


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Our enterprise insists all along the standard policy of "product high-quality is base of business survival; client satisfaction could be the staring point and ending of an business; persistent improvement is eternal pursuit of staff" as well as consistent purpose of "reputation first, client first" for Factory directly 100kn Glass Insulator - High Voltage 70kn Disc Suspension Toughened Glass Insulator U70BL – Johnson, The product will supply to all over the world, such as: Switzerland, Orlando, New Orleans, We provide OEM services and replacement parts to meet the varying needs of our customers. We give competitive price for quality solutions and we are going to make certain your shipment is handled quickly by our logistics department. We sincerely hope to have the opportunity to meet with you and see how we can help you further your own business.
  • The company has rich resources, advanced machinery, experienced workers and excellent services, hope you keep improving and perfecting your products and service, wish you better!
    5 Stars By Karl from Paraguay - 2017.10.27 12:12
    We are really happy to find such a manufacturer that ensuring product quality at the same time the price is very cheap.
    5 Stars By Fernando from British - 2017.12.19 11:10

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