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Ground Down Lead Continuity Tester

Ground Down Lead Continuity Tester

Type: ZC-413B
ZC-413B Ground down Lead Continuity Tester, it’s a portable tester with high automation degree, which is specially used for the electrical integrity test of grounding device, and its technical indicators meet or exceed the requirements of relevant standards. The instrument has the advantages of simple operation, high precision, fast testing speed, good repeatability and intuitive reading. It is an ideal special instrument in accordance with the requirements of the regulations, which greatly facilitates the development of the test project and improves the work efficiency.
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Product Features
1. Power supply technology: adopt the latest power supply technology, output 10A current, can work continuously for a long time, overcome the disadvantages of instantaneous current of pulse power supply, effectively break down the oxide film of contact, and get good test results;

2. Strong anti-interference ability: under the condition of serious interference, the last bit data of LCD screen can be stable within the range of ±1 word, the reading is stable and the repeatability is good;

3. Long service life: high precision resistance is used to effectively eliminate the influence of ambient temperature on the measurement results. At the same time, the use of military connectors enhances the anti vibration performance;

4. The operation is simple: just press the measurement key to get the measurement results. The measurement results are displayed by LCD backlight, with intuitive reading and good repeatability

5. Easy to carry: portable design. With small size, light weight. The panel and the case form a whole structure, with good seismic resistance.
Parameter

Model

ZC-413B

Test purpose

Conductivity measurement of the connecting part between power equipment and ground grid

Resistance Range

Test Range

1~1999mΩ

Resolution ratio

1mΩ

Test Accuracy

±(0.5%±2d)

Other Indicator

Test current

DC 1A、2A、5A、10A four fixed current gear

Test radius

50m

Display mode

Three and a half digital LCD display

Working mode

continuity

Power

Voltage

AC 220V±10%

Frequency

50Hz±5Hz

Environment Condition

Temperature

- 10° C to +40 ° C

humidity

≤80%

physical characteristics

Size

300x 270x 200mm3

Weight

≈5KG (Without Accessory)

guide
The electrical integrity of grounding device refers to the electrical connection between various electrical equipment, parts of grounding device and equipment, namely DC resistance value, also known as electrical continuity. The reliable and effective connection between the grounding down lead of power equipment and the grounding grid is the fundamental guarantee for the safe operation of the equipment. Grounding down-lead is the connection part between power equipment and grounding grid. During the long-term operation of power equipment, the joint may be affected by damp and other factors, resulting in node corrosion, even fracture and other phenomena, resulting in the increase of resistance between the grounding down lead and the main grounding grid connection point, which cannot meet the requirements of the power regulations, making the equipment unsafe in operation will cause the equipment to lose ground operation. The underground grounding electrode and its connecting part of the grounding device may also be corroded or even broken. Therefore, it is necessary to test the electrical integrity of grounding device regularly.

According to the electric power industry standard DL / T475-2006 guide for measurement of characteristic parameters of grounding device, special instrument shall be selected for measurement of electrical conductivity, with resolution of 1mΩ and accuracy of no less than 1.0 level. ZC-413B grounding down lead conduction tester developed by our company according to this standard is a portable tester with high degree of automation, which is specially used for the electrical integrity test of grounding device, and its technical indicators meet or exceed the requirements of relevant standards. The instrument has the advantages of simple operation, high precision, fast testing speed, good repeatability and intuitive reading. It is an ideal special instrument in accordance with the requirements of the regulations, which greatly facilitates the development of the test project and improves the work efficiency.


ZC-413B grounding down lead continuity tester is applicable to the measurement of the on resistance between the grounding down lead of power equipment and the grounding grid (or adjacent equipment), as well as the measurement of low resistance value.
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