China High Temperature 1.5kv 2.5kv Electronic Insulating PVC Coated Fiberglass 2715 Electrical Insulation Sleeve, Find details about China Fiberglass Sleeving, Insulation Materials from High Temperature 1.5kv 2.5kv Electronic Insulating PVC Coated Fiberglass 2715 Electrical Insulation Sleeve
Indicator name | unit | Index value | |||||||
Exterior | / | The coating should be uniform, the surface should be smooth, and there should be no defects affecting product performance. | |||||||
Inner diameter and wall thickness | mm | Inner diameter | Wall thickness | ||||||
Standard | tolerance | 406 | 407 | ||||||
Two way(±) | unidirectional(+) | Min | Max | Min | Max | ||||
0.3 | 0.05 | 0.10 | 0.20 | 0.30 | 0.15 | 0.30 | |||
0.5-0.8 | 0.10 | 0.20 | 0.25 | 0.50 | 0.20 | 0.50 | |||
1 | 0.15 | 0.3 | 0.25 | 0.9 | 0.20 | 0.75 | |||
1.5 | 0.15 | 0.3 | 0.35 | 0.90 | 0.20 | 0.75 | |||
2 | 0.20 | 0.40 | 0.35 | 0.90 | 0.20 | 0.75 | |||
2.5 | 0.20 | 0.40 | 0.40 | 0.90 | 0.20 | 0.75 | |||
3 | 0.25 | 0.5 | 0.40 | 0.90 | 0.20 | 0.75 | |||
4-6 | 0.25 | 0.5 | 0.50 | 0.90 | 0.30 | 0.75 | |||
8 | 0.50 | 1.00 | 0.50 | 1.20 | 0.30 | 0.90 | |||
10-25 | 0.50 | 1.00 | 0.65 | 1.20 | 0.40 | 0.90 | |||
Breakdown voltage | Numerical value | KV ≥ | Projectile slot or straight mandrel / 100mm foil electrode | Median | Lowest value | Median | Lowest value | ||
At room temperature | 5.7 | 4.3 | 3.0 | 2.5 | |||||
Under high temperature | 2.6 | 2.0 | 1.5 | 1.2 | |||||
After damp heat | 2.5 | 2.0 | 1.8 | 1.2 | |||||
Insulation resistance | At room temperature | Ω | - | ≥1.0×109 | ≥1.0×109 | ||||
After damp heat | ≥1.0×108 | ≥1.0×108 | |||||||
Flame spread | S | ≤60 | |||||||
- | Any one of the three samples indicates that the flag should not burn. Cotton is also not ignited by ignited or hot particles or ignited drops. | ||||||||
Solder heat resistance | - | Pass (only for nominal inner diameter ≤ 5mm hose) | |||||||
Bending after heating | - | No visible cracks or shedding of the coating (test temperature: 130±2°C, exposure time: 96±1h) | |||||||
Bending at low temperatures | - | No visible cracks or shedding of the coating (test temperature: ≤-25±2°C) |