Lab of Xi'an high voltage electric implement graduate school  
Test report
No.00426
Page 7
hunder strike test of high voltage switch implement
Test date: 09 - 18-2000
Distance between
Vol-tage
Wave shapeus
positive
negative
tested articleŁ(mm)
part
Wave shapeus
Vol-tage kV,peak
Vol-tage times
Breakdown times
Vol-tagekVpeak
Vol-tage times
Break-down times
290
A-B
 
185
15
0
185
15
0
280
A-B
 
185
15
0
185
15
0
270
A-B
 
185
15
0
185
15
0
260
A-B
 
185
15
0
185
15
0
250
A-B
 
185
15
0
185
15
0
Atmosphere of tested area
P=96.6kpa     tdry=25.0oC      twet=22.0oC
Atmosphere revise submultiple Kt=0.99


Lab of Xi'an high voltage electric implement graduate school
Test report
No.00426
Page 9
Test of electric intensity
Test date:2000-09-18
Number of tested
Break-down voltage (kv)
Average break-down voltage
Break-down intension (kV/mm)
Average break-down intension
article
 
53.8
/
30.4
1
53.0
 
/
  
2
60.0
  
/
  
3
49.5
  
/
  
4
56.5
  
/
  
5
50.0
 
/
  
Average thickness of heat shrinkable sleeves: 1.77mm
Atmosphere of tested area
P=96.6kpa     tdry=25.0oC        twet=22.0oC
Atmosphere revise submultiple Kt=/

No.
Inspection item
Inspection result
Standard and inspection condition
1
Density g/cm2
1.23
GB/T1033-86(A)
2
Shaoshi rigidity(HD)
31.9
GB/T2411-80
3
Extend intensity MPa
15.7
GB/T104092(ii)V=200mm/min
4
Elongate rate of rupture%
720
5
Break-down intension kV/mm
27.4
GB/T1408-89
6
Surface resistivity
4.4x1014
3.4 x1014
GB/T1410-89
7
Volume resistivity .cm
8
Sopping rate %
0.32
GB/T1034-86
(normal temperature 14d)
9
low
temperature suppleness
Thread mandril 360o,no crackle
-40oC 4h mandril28.6mm
10
Heat impact
No dription nor flow
200oC 4h sample put on 45oC bevel
11
Oxygen exponent(oi)%
26.0
GB/T2406-93 III
12
1360C 168h thermo-aging test
Extend intensity Mpa
15.7
Using 40Ibthermo-aging GB/T1040-92
II V=200mm/min
Rupture rate %
740