Technical specification for 105 ℃ flame retardant PVC insulating material
1 Scope
This specification specifies the requirements, test methods, inspection rules, packaging, marking, transportation and storage of 105 ℃ flame retardant PVC insulating materials (hereinafter referred to as fuel).
2 requirements and test methods
The requirements and test methods are in accordance with table 1.
Table 1 requirements and test methods
Items | Company | ZJ-105 | test method | |
tensile strength | MPa | >15.0 | GB/T1040 | |
elongation at break | % | >150 | GB/T1040 | |
After aging Mechanical properties | Test temperature | ℃ | one hundred and fifty | — |
Test time | h | one hundred and sixty-eight | — | |
tensile strength | MPa | >15.0 | GB/T1040 | |
Large change rate of tensile strength | % | ±20 | GB/T1040 | |
elongation at break | % | >150 | GB/T1040 | |
Large change rate of elongation at break | % | ±20 | GB/T1040 | |
Heat aging mass loss | g/m two | ≤20 | GB/T8815 | |
brittle temperature | ℃ | -15 | GB/T5470 | |
Dielectric strength | MV/m | >20 | GB/T1408. one | |
20 ℃ volume resistivity | Ω·m | >1.0 × ten twelve | GB/T1410 | |
200 ℃ thermal stability time | min | >100 | GB/T8815 | |
thermal deformation | % | ≤40 | GB/T8815 | |
Oxygen index oi | % | ≥30 | GB/T2406 | |
density | g/cm three | ≤1.42 | GB/T1033 | |
3 inspection rules
3.1 inspection methods and requirements
3.1.1 the insulating materials of the same type produced by qualified suppliers have stable performance (returned without quality problems within one year), and spot check once every 5 tons.
3.1.2 for new materials from qualified suppliers or insulating materials or samples supplied by suppliers for the first time, type test shall be carried out for the first time, and sampling inspection shall be conducted for the next five supplies. After passing the test, it can be transferred to sampling inspection of alternate batches.
3.1.3 if the material is found to be unqualified once in sampling, it shall be sampled according to the provisions of × ×.
3.1.4 each batch of materials shall be attached with the warranty or test report of the supplier's materials.
3.1.5 sampling method
2 bags or more for each batch.
3.2 test items
3.2.1 the inspection items are extrusion appearance, 20 ℃ volume resistivity, tensile strength, elongation at break, oxygen index and density.
3.2.2 the performance that cannot be tested shall be accepted according to the manufacturer's test report or quality guarantee, and periodic outsourcing test shall be conducted.
4 packing
Internal plastic film, external PP woven fabric / PE / kraft paper composite, or other packaging agreed by both parties. The net weight of each bag is 25 ± 0.2kg, but no negative deviation is allowed per ton.
5 mark
The package must be marked with the name of manufacturer, material model and name, color, date of manufacture, net weight, product certificate and other marks.
6 annex
The quality assurance certificate or quality inspection sheet of the manufacturer shall be attached when the fuel is put into the plant. At the time of first supply, the manufacturer shall attach the type test report of the legal inspection department. During normal supply, the manufacturer shall provide the type test report of the statutory inspection department every two years.
7 transportation
Transportation should not be exposed to the sun and rain, packaging should not be damaged.
8 storage
The blocking fuel shall be stored in a clean, cool, dry and ventilated warehouse. The storage period is 12 months from the date of production.

