ASTM D3638-92 Low Voltage Tracking Index Tester Flammability
Testing Equipment
Description:
ASTM D3638-92 low voltage tracking tester simulates wet/moisture
condition, test tracking index(CTI)
and anti tracking index(PTI). It is used for electrical electronic
products, solid insulating materials of
household electrical appliance and other products.
Test method:
On the surface of solid insulate material, at the ruled 2mmx5mm
platinum electrode, exert a certain
voltage and set 30s time, drip the ruled drop volume(0.1%NH 4CL) at
35 mm height, then evaluate solid
insulation material surface under combined electric field and
medium pollution tolerance ability,
determine its tracking index(CTI) and anti tracking index(PTI).
Test standard:
IEC60112:2003, UL746A,ASTM D 3638-92,DIN 53480, GB4706.1, GB4207
and other equivalent test
standard.
Specifications:
1. Electrode material: platinum/stainless steel
2. Electrode size: (2mm±0.1mm)x(5mm±0.1mm)x(40mm±5mm), platinum
electrode 12mm, 30°±2° cant
3. Electrode distance: 4.0mm±0.01mm, angle 60 °±5°
4. Electrode pressure: 1.00N±0.001N
5. Test solution resistance: solution A 0.1%NH 4CI, 3.95±0.05 Ω.m,
solution B 1.98±0.05 Ω.m
6. Drop volume: 20 drops 0.380~0.480g, 50 drops
0.997~1.147g(adjustable)
7. Drop height: 35mm±5mm(adjustable)
8. Drop time: 30s±10.1s, digital display, preset, 50 drops time
24.5min±2min
9. Drop quantity: 1-9999, digital display, preset
10. Test wind speed: 0.2m/s
11. Test voltage: 100V~1000V(25V scale division, adjustable)
12. Power voltage drop: 8% when 1.0A±0.1A
13. External chamber dimension: 600Wx1000Hx500D mm
14. Air outlet diameter: 100mm
15. Power supply: AC 1 phase 220V 50/60Hz 500W
