Tracking tester: M31.10

1 Overview

Of moisture and impurities in the environment under the influence of different polarity between the live parts or live parts and grounded metal may be caused by the leakage in the insulation, the breakdown of arcing on electrical short circuit or electrical erosion due to discharge of the material in the electrical products loss, and even the ignition resulting in fire. Power from the mark test is to simulate this situation insulating materials, a destructive test, for assessing and measuring the specified voltage insulator in the role of electric and water containing impurities is relatively resistant to leakage from the mark.

The tracking test IEC60112: 2003 "Determination of solid insulating materials tracking resistance index and compared to the tracking index method, UL746A, ASTM D 3638-92, to DIN 53.48 thousand and other standard requirements of the simulation pilot project.
Tracking test is to impose a voltage on the surface of the solid insulation material between the platinum electrodes of the required size (2mm x 5mm), and regularly (30s) set height (35mm) to drop the provisions of the contaminated liquid of the droplet volume (0.1 % of NH 4 the CL), to evaluate the surface of solid insulating materials in the media under the combined effects of electric and pollution tolerance measured compared to electrical tracking index (CTI) and the resistance to tracking index (PTI).
Tracking test apparatus for lighting, low voltage electrical appliances, household appliances, machine tools, electrical appliances, motors, power tools, electronic equipment, electrical instruments, IT equipment, production and quality inspection departments, and also applies to insulating materials, engineering plastics , electrical fittings and accessories industry.

Two. Device Profile:

(1) Model: M31.10

(2) Manufacturer: Germany PTL

Three instrument configuration and technical specifications:

A. The power supply unit: includes voltmeter, ammeter, delay overcurrent relays, power cable, the button switch a signal indicator.

(1) voltage 50-60Hz, 0 ~ 1000V continuously adjustable (optional range 300V / 600V / 800V / 1000V), the maximum error is 1%

(2) limit the adjustable resistance between the poles of short-circuit current is 1A, and in this current voltmeter indicates the voltage drop value does not exceed 10%.

(3) delay overcurrent relay test to the current more than 0.5A duration over 2 seconds, the entire tracking device is turned off.

B. Automatic drip device: contains the drip tube, drip nozzles, counting device, drip counting device for drip control device, drops volume measuring.

(1) drip nozzle device, removal of the convenient, adjustable height of 30-40mm, the cylinder can adjust the solenoid valve needle.

(2) drops to ensure the drip in bipolar central.

(3) drip interval automatic control of the 30s a drop, 50 drops of 24.5min ± 2min, you can manually control any droplet interval time.

(4) drops counter, there are six buttons for pre-setting, there is a reset button.

(5) for every drop of about 20mg, 20 drops 0.380g ~ 0.480g, 50 drops of 0.997g to 1.147g (differentiable regulation);

C. Electrode Assembly: contains a pair of platinum electrodes, the electrode fixtures, 4mm amount of its rules.

(A) electrode size: flat, width 5mm, 2mm thick, 99.9% pure platinum, the two are 30-60 degree angle tip.

(2) electrode on the sample pressure is adjustable and can be adjusted to (1.00N ± 0.001N); electrode distance of 4.0mm ± 0.01mm, 60 ° ± 5 ° angle by adjusting the fulcrum pin to adjust the height.

(3) 4mm gauge: thin metal, rectangular, smooth.

(4) electrode device can be adjusted demolished.
E. Test Box: Includes the rack, cover, etc..

(1) The cover consists of two doors to protect the operator of the original away from the danger of high voltage, the two door security system, open the test and high-voltage output is stopped.

F. Samples: number of a sample stage glass.

(1) sample stage level degree;

(2) glass, the surface smooth, with a total thickness ≥ 4mm;

(3) The sample stage is height adjustable.

G. electrolyte: the number of a set of A solution and B solution bottle, ammonium chloride and alkyl naphthalene sulfonate satisfied reagent bottle.

(1) NH4Cl reagent purity not less than 99.8%;

(2) of the solution properties to meet the following table: