- Wuhan Deya Power Technology Co., Ltd
- Main products: Transformer capacity tester, Three-phase phase voltmeter, Loop resistance tester, DC resistance tester
Home > Products > 13. Lightning protection and generator detection > Special standard resistance for lightning protection DY-BZ
Special standard resistance for lightning protection DY-BZ
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Product Details
| Brand Name | Deya Power | Place of Origin | China | |
| Model Number | DY-BZ |
Product Description
1、 Product introduction
DY-BZ lightning protection special standard resistance consists of 9 1/2W high-precision military grade wire wound resistance series. It is convenient to change gears directly when calibrating the instrument without changing wires. The highest accuracy can reach 0.05%. It has good long-term stability. It is a standard resistance specially customized by our company. Its resistance values include 1m Ω, 10m Ω, 100m Ω, 1 Ω, 10 Ω, 100 Ω, 1K Ω, 10K Ω, 100K Ω, It fully meets the 10-3~105 range specified in the Administrative Measures for Testing Qualification of Lightning Protection Devices (Order 31). It is mainly used for the calibration of grounding resistance tester, equipotential tester and other instruments.
2、 Range accuracy
model | Precision (%) | temperature coefficient（ppm） |
0.001Ω | 2 | ±25 |
0.01Ω | 0.5 | |
0.1Ω | 0.2 | |
1.0Ω | 0.2 | |
10Ω | 0.05 | |
100Ω | 0.05 | |
1KΩ | 0.05 | |
10KΩ | 0.05 | |
100KΩ | 0.1 |
Reference condition: 23 ℃± 1 ℃ 50 ～ 60% RH
3、 Technical specifications
Function | Used for calibration of grounding resistance tester, equipotential tester and other instruments |
Range | 1mΩ，10mΩ，100mΩ，1Ω，10Ω，100Ω，1KΩ，10KΩ，100KΩ |
wiring method | Four line method |
Power | 1/2W |
temperature coefficient | ±25ppm |
Dimensions | Length, width and thickness:187*119*48mm |
Test line length | Two red 0.5m and two black 0.5m |
Quality | about550g |
Operating temperature and humidity | -10℃～40℃；Below 70% rh |
Storage temperature and humidity | -20℃～60℃；Below 80% rh |
insulation resistance | Above 10M Ω (500V between circuit and shell) |
Withstand voltage | AC 3700V/rms (between circuit and housing) |
Suitable for safety regulations | IEC61010-1、CAT Ⅲ 600V、Pollution level, JJG166-1993 Verification Regulation of DC Resistors |
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- Wuhan Deya Power Technology Co., Ltd
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