Customization: | Available |
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Application: | Machine Protection, Wire & Cable Protection, Insulators |
Color: | White |
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Audited by an independent third-party inspection agency
Indicator Name |
Unit |
Index value |
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Appearance |
/ | The coating should be uniform, with a smooth surface and no defects that affect product performance |
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Inner diameter and wall thickness |
mm | inside diameter |
inside diameter |
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standard |
public errand | type 403 |
type 404 |
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two-way (±) |
one-way (±) |
minimum |
maximum |
minimum |
maximum |
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0.3 | 0.05 | 0.1 | 0.15 | 0.3 | 0.1 | 0.3 | |||
0.5-0.8 | 0.1 | 0.2 | 0.2 | 0.5 | 0.15 | 0.5 | |||
1 | 0.15 | 0.3 | 0.2 | 0.75 | 0.15 | 0.75 | |||
1.5 | 0.15 | 0.3 | 0.2 | 0.75 | 0.15 | 0.75 | |||
2 | 0.2 | 0.4 | 0.2 | 0.75 | 0.15 | 0.75 | |||
2.5 | 0.2 | 0.4 | 0.2 | 0.75 | 0.15 | 0.75 | |||
3 | 0.25 | 0.5 | 0.2 | 0.75 | 0.15 | 0.75 | |||
4-6 | 0.25 | 0.5 | 0.3 | 0.75 | 0.2 | 0.75 | |||
8 | 0.5 | 1 | 0.3 | 0.9 | 0.2 | 0.75 | |||
10-25 | 0.5 | 1 | 0.4 | 0.9 | 0.4 | 0.75 | |||
Breakdown voltage | Breakdown voltage |
KV ≥ |
Bullet groove or straight core/100mm foil electrode |
median |
minimum |
median |
minimum |
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At room temperature |
3 | 2.5 | 1.5 | 1 | |||||
Under high temperature |
1.5 | 1.2 | - | - | |||||
After dampness and heat |
1.8 | 1.2 | - | - | |||||
Insulation resistance |
At room temperature |
Ω | - | ≥1.0×109 | - | ||||
After dampness and heat |
≥1.0×108 | - | |||||||
Flame extension |
Burning time |
S | ≤60 | ||||||
visual inspection |
- | Any one of the three sample flags should not burn. Cotton is not ignited or scorching particles or ignited Ignited by the droplets of. |
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Solder heat resistance |
- | Passed (only applicable to hoses with a nominal inner diameter ≤ 5mm) |
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Bending after heating |
- | No visible cracks or peeling on the coating (test temperature: 130 ± 2 ºC, exposure time: 96 ± 1h) | |||||||
Flexibility at low temperature |
- | No visible cracks or peeling on the coating (test temperature: ≤ -25~± 2 ºC) |
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Resistance to mold growth |
- | First level or better |
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Storage period |
- | 12 months |
Product quality: With consistent quality control throughout the entire process of product design and development, material procurement, production, quality inspection, and sales, the company has passed strict quality system certification and has been widely recognized by well-known customers. The company's products have advantages in quality.
Our products all meet the national standard, IEC standard and ISO standard. We have more than 60 national inventions and utility model patents, and the reliable quality of our products and our superb service has received warm praise from our customers!
We take customer satisfaction as our goal, trying our best to be more professional. In line with the principle of "putting customers first and pursuing continuous improvement" ,we will keep innovating and never stop on our way to become a new material supplier of transformer industry at home and abroad.
Customer visit
Q: How you make sure the quality?
a. We will consult on your requirements, and recommend suitable products to you.
b. Before production, we will send samples to you
c. During production, we will always check quality, package, delivery etc.
d. Before package, with QA to check everything
e. After shipment, we will consult with you about satisfaction.
Q: How to make sure the delivery date?
a. Before production, we will see we can meet your time or not.
b. After your payment, we start our preparing material immediately.
c. During production, We will inform you of the production scheduled.
d. Before shipment, we will inform you to pay the balance on time and booking immediately.