News
- 2011-05-25 20:30:46
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1. Objective:
To make EU regulations, national standards are based on wire tests to follow, especially the development of this standard.
2. Application:
Our application follows the EU regulations, the national standard wire: a. H03VVH2-F (RVV 300/300V) b. H03VV-F (RVV300/300V) and A03VV-F c. H05VVH2-F (RVV 300/500V) d. H05VV -F (RVV 300/500V)
e. H03VVH2H8-F f. H03VVH8-F g. H05VVH2H8-F h. H05VVH8-F
i. RVB 300/300V
3. Definitions:
EU regulation, the national standard wire: refers to VDE, NF, IMQ, DEMK, EMKO, FIMKO, SEMKO, OVE, KEMA, CEBEC, SEV, and BS, SAA, BR, GB standard cable, because most of the above criteria is based on the content of IEC standards development.
4. Operation:
Based on the items listed in the table on the wire inspection, sampling and testing frequency, see the "test project management approach" in terms of 3.3.1:Test Test Items Head
Test Test Article Pieces
Test Equipment
The results
According to the standard
Power
Gas
Of
Can
Test
TestConductor resistance
(At 20 ℃)DC bridge
0.5 mm 2 <39Ω / km
0.75mm 2 <26Ω / km
1.0mm 2 <19.5Ω / km
1.5mm 2 <13.3Ω / km
2.5mm 2 <7.98Ω / kmIEC 227
VDE 0472
VDE 0281
BS 6500
AS3191
NBR13249
GB5023Wire pressure
Specimens with a minimum length of 5 meters,soaking time for at least 1h, water temperature20 ± 5 ℃, pressure: nominal insulation thickness of 0.60mm and below the pressure 1. 5kvAC/5min,the nominal insulation thickness of 0.60mm or more pressure 2kvAC/5min
Pressure Machine
Breakdown does not occur
Product pressure
Minimum length of 20 specimens m, soaking time for at least 1h, water temperature 20 ± 5 ℃,the test voltage 2kvAC, the voltage applied at least time 1 5min.
Pressure Machine
Breakdown does not occur
Insulation resistance
(70 ℃)The pressure wire in the water after the sample length of 5 meters, soaking time, at least 2h,water temperature 70 ± 2 ℃, 80 ~ 500V DC applied voltage is measured after 1min.
Insulation resistance
Testing machinea, b, e, f, i ≧0.012M Ω.km
c, d, g, h ≧0.011M Ω.kmDC Resistance Voltage
Sample length of 5m, test time 240h, water temperature 60 ± 5 ℃, test voltage 220V DC
DC
Pressure MachineBreakdown does notoccur, an insulator is no visible damage
Spark Test
Insulation thickness ≤ 0.5mm Spark voltage 4 kvAC; insulation thickness of 0.5mm <t ≤1.0mm, spark voltage 6kvAC
Sparks
Breakdown does not occur
Results
Structure
Foot
Inch
Check
SearchConductor inspection
The elongation of annealed copper wire
Elongation machine
≧ 15%elongation
The maximum diameter of a single copper wire.
Micrometer
Less than0.21mm
Insulation thickness
At least 1m away from the three samples from each of paragraph 1,
Measuring 6 points.Projector
Table 3
Sheath thickness
At least 1m away from the three samples from each of paragraph 1,
Measuring 6.Projector
Table 3
The average value outsideOD
Measuring 6 points averaged.
Caliper or projector
Table 3
Outside
Ellipse degreeFor the jacket round cable, anywhere on the measured difference of any two shall not exceed the standard diameter of a given maximum average diameter of 15%.
Caliper or
ProjectorShould meet the standard requirements
Table 1
Table 2
Table 3
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