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| Fiberglass sleeve |
SRG-502
2751 Fiberglass Sleeving Coated with Silicone Rubber (According to JB 1554-75)
Fiberglass sleeving coated with silicone rubber, produced with the peocess of thermal treatment and vulcanization is the non-aldali fiberglass braided sleeving coated with silicone rubber. This sleeving possesses good qualities of dielecteic high temperature resistance excellent elasticety and cold resistance .It can be used for wiring insulation and mechanical protection for electrical machinery and electrical appliances.
Note: The breakdown voltage for sleevings whose inner diameter is or is below 1.5 mm should not be lower than 75 of the specified voltage.
|
Bore Diameter |
Wall Thickness
|
Nominal |
Tolerance |
Minimum |
Maximum |
1:1.5 |
+0.20
-0.10
|
0.4 |
±0.10 |
2:2.53:3.5 |
+0.30
-0.10
|
0.5 |
±0.15 |
4:5:6 |
+0.40
-0.20
|
0.6 |
±0.20 |
7:8:9 |
+0.50
-0.30
|
0.7 |
±0.20 |
10:11:12 |
+0.80
-0.50
|
0.8 |
±0.20 |
14:16:18
20:23:25:27
|
±1.00 |
1.0 |
±0.30 |
|
| Property Requirements |
Property |
Requirements |
Elasticity |
No cracking or detachment of coating shall be visible (1)after 3hours at 200±2oC(2)after 2 hours at –40~-6-C |
Flame resistance |
not less than 45 sec./25mm |
Heat resistance |
No cracking detachment of coating shall be visible after 72hours at 200±5oC |
Breakdown voltage kv.min.
At room Temp
after damp
|
4.0
2.0
|
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SRG-503
2752 Type 2 Fiberglass Sleeving Coated with Silicone Rubber (According to GB 7115-86)
This kind of fiberglass sleeving produced with the process of thermal treatment and vulcanizatios is the non-alkali fiberglass braided sleeving coated with silicone rubber. This sleeving possesses good qualities ofdielectric, high temperature resistance and cold resistance and can be used as wiring insulator for H grade electrical machinery, spectrical irons, electrical rice cookers as well as other household appliance and their protection device.
Length: 1000±20
10mm . (continuous length may be megotiated.) |
Bore Diameter |
Wall Thickness |
Nominal |
Tolerance |
Minimum |
Maximum |
1:1.5 |
±0.20 |
0.20 |
0.6 |
2:2.5:3 |
±0.20 |
0.20 |
0.7 |
3.5:4:5:6 |
±0.25 |
0.30 |
0.7 |
7:8 |
±0.25 |
0.30 |
1.0 |
9:10 |
±0.50 |
0.40 |
1.0 |
12 |
±0.50 |
0.40 |
1.2 |
14:16:18:20 |
±1.00 |
0.40 |
1.2 |
23:25:27 |
±1.00 |
0.40 |
1.4 |
|
| Property requirements |
Property |
Requirements |
Resistance to soldering heat |
Pass, (only for sleeving having nominal bore dia. up to and including 5mm) |
Volatile content |
1.5%max. |
Bending after heating |
No cracking or detachment of coating shall be visible and the original colour shalbe clearly recognisable after 48±1hr at 260±5oC |
Bending at low temperature |
No cracking or detachment ofcoating shall be visible after 60±10min. at –70±5oC |
Hydrolysis of coating |
No running of the coating, adgerence between sleeving and paper, between the pieces of sleeving nor any sign ofdiscolouration of the paper. |
Insulation resistance at room temp.after damp heat |
10MΩ少
10MΩ |
Flame propagation |
Method B, 60s mat. In addition, the indicator flag on any one of the three test specimens shall not be burned nor shall flaming or glowing particles or flaming drops ignite the cotton. |
Thermal endurance, Temperature index at 20000 hours. |
200 |
Breakcown Voltage kv, min.
Straight mandrel with 25mm electrode
|
Room temp |
Elevated temp |
Damp heat |
Central value
Lowest individual value
|
4.0
2.5
|
3.0
1.9
|
1.2
0.8
|
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F Grade Fiberglass Sleeving Coated with Acrylic Resin
F grade fiberglass sleeving coated with acrylic resin is manufactured with non-alkali fiberglass braided sleeving and coated with a layer of modified acrylic resin and then thermosetted toform F grade insulating sleeving. It possesses reliable heat resistance, goodqualities of dielectric, fair softness and elasticity, flame resistance, It can be used for wiring insulation and as mechanic protection for motors, electrical appliances, electrical instruments , wireless sets and domestic electrical appliances.
Dimensional Requirements |
Nominal bore dia. |
Tolerance |
Wall Thickness |
1:1.5 |
±0.15 |
0.20 |
0.75 |
2:2.5 |
±0.20 |
0.20 |
0.75 |
3 |
±0.25 |
0.20 |
0.75 |
3.5:4:5:6 |
±0.25 |
0.30 |
0.75 |
7:8 |
±0.50 |
0.30 |
0.75 |
9:10:12:14;
16:18:20
|
±0.50 |
0.40 |
0.90 |
23:25:27 |
±0.50 |
0.40 |
1.0 |
|
| Property Requirements |
Property |
Requirements |
Resistance to soldering heat |
Pass, (only for sleeving having nominal bore dia up to and including 5mm) |
Bending after heating |
No cracking or detachment of coating shall be visible and the original colour shall be clearly recognigable after 48±1 hr. at 180±3oC |
Bending at low temperature |
No cracking ordetachment of coating shall be visibe after 60±10min. at-15oC |
Hydrolysis of coating |
No running of the coating , adherence between sleeving and paper, between the pieces of sleeving or any sign of discolouration of the paper . |
Insulation resistance
At room temp.
|
103MΩ |
Flame propagation |
Method A, 60s. max. In addition, the indicator flag on any one of the three test specimens shall not be burned nor shall flaming or glowing particles or flaming drops ignite the cotton. |
Thermal endurance, Temperature index at 20000 hours |
155 |
Breakdown Voltage, kv, min
Straight mandrel with 25mm electrode
|
Room temp |
Elevated temp |
Damp heat |
Central value
Lowest individual value
|
4.0
2.5
|
1.6
1.2
|
1.2
0.8
|
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SRG-514
Self-extinguishable Fiberglass Sleening (In accordance with Shanghai Q/JB 3292-84)
Self-extinguishable fiberglass sleeving treated at a high temperature is the sleeving braided with mon-alkali fiberglass and coated with a special kind of silicone resin.
Self-extinguishable fiberglass sleeving possesses good qualities of dielectric, self-extinguishment, excellent softness and elasticity. It is widely used as wiring insulator for H grade electrical machinery, domestic electrical machinery, domestic electrical appliances, heating electric equipments, TV sets, and electric apparatus, and also for the protection of collected strands of wire.
Length: The standard length of the sleeving is 1000+20mm;1000-10mm
(Continuous length may be megotiated). |
Bore Diameter |
Wall Thickness (less than) |
Nominal |
Tolerance |
1~3.5
|
+0.30
-0.10
|
0.5 |
4~8 |
+0.50
-0.30
|
0.7 |
|
Appearance: Qhite, clear and neat ends.
Heat resistance: After the sleeving has been treated under a temperature of 2503C in a cabinet for 24 hours, the coating of the sleeving shorld not appear detached , and discolored .
Self-extinguishment: Shorter than 10 seconds if the diameter of the sleeving is (or less than)3.5mm. But shorter than 15 seconds if the diameter of the sleeving is 4 to 8mm.
Breakdown voltage:
Type I Not lower than 4000V
Type II Not lower than 1500V
AG-601
Fiberglass Sleeving Coated with Acrylic Resin (In accordance with Shanghai Q/JB 3131-83)
Fiberglass sleeving coated with acrylic resin is manufactured with non-alkali fiberglass braided sleeving and coated with a layer of acrylic resin, and then thermosetted to form B grade insulating sleeving. It possesses reliable heat resistamce, good qualities of dielectric, fair softness and elasticity. Benzene resistance and , oil resistance. It can be used for wiring insulation and as mechanic protection for electrical machinery, electrical appliances, electrical instruments, wireless sets and domestic electrical appliances.
Length: 1000+20mm 1000-10mm
Appearance: Smooth surface, clear and neat ends.
Elasticity: (1) When the temperature is 205C and the relative humidity is 655%, the coating of the sleeving should not crack or apper detached after the sleeving has been wound around the specified mandrel for an hour.
(2) The coating should not crack or appear detached after, the sleeving has been freated for 2 hours at a temperature of 10 to 15C below zero.
(3) After the sleeving has been treated at a tempeerature of 1302C for 24 hours and is wound around a specific mandrel at the room temperature of 202C its coating should not crack or appear detacked.
Oil resistanck: The coating should not crack or appear detached after the sleeving has been depped in transformer oil for 24 hours at a temperature of 1052C. But the colour of the sleeving is allowed to grow darker.
Benzene resistance The coating of the sleeving should not be stichy or show delamination whem the sleeving has been kept in methylbenzene at a normal atmospheric temperature for 4 hours.
Remark:
(1) The softness of type II is superior to type I Its dielectric properties can be as good as those of type I’s, after it has been treated at a temperature of 150C for more than 60 minutes.
(2) The breakdown voltage for sleeving , whose inner diameter is or below 1.5mm, should not be lower than 75% of the specified voltage. |
Bore Diameter |
Wall Thickness |
Nominal |
Tolerance |
0.5 |
±0.10 |
0.20~0.50 |
0.7 |
±0.10 |
0.20~0.50 |
1.0 |
±0.20 |
0.20~0.60 |
1.5 |
±0.20 |
0.20~0.60 |
2.0 |
±0.20 |
0.23~0.70 |
2.5 |
0.20 |
0.23~0.70 |
3.0 |
±0.20 |
0.30~0.70 |
3.5 |
±0.20 |
0.30~0.70 |
4.0 |
±0.25 |
0.30~0.70 |
5.0 |
±0.25 |
0.30~0.70 |
6.0 |
±0.25 |
0.35~0.70 |
7.0 |
±0.25 |
0.37~1.0 |
8.0 |
±0.25 |
0.37~1.0 |
10.0 |
±0.50 |
0.47~1.0 |
12.0 |
±0.50 |
0.55~1.2 |
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Test Conditions |
Breakdown Voltage (Not Lower Thanl) |
Type1 |
Type 2 |
under normal |
4.0 |
2.5 |
after dampening |
2.0 |
1.2 |
after winding |
2.5 |
1.5 |
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