Knowing the DC resistance of conductors is an important part of any electrical circuit design. Luckily, testing this parameter is fairly straightforward and can be done accurately using a range of techniques. In this guide, we’ll cover the best practices for measuring DC resistance and discuss some of the most popular methods available. Discover a comprehensive guide to testing the DC resistance of conductors. Find out the best and most accurate methods available for measuring this important parameter.
Conductor Resistance Fixtures are used to test conductor resistance. Measurement of the resistance of electrical conductor materials and other conductor materials as specified in Conductive Core Resistance Test Methods. The Wewon’s conductor resistance test device can be used in conjunction with QJ57, QJ44, QJ36, QJ19, SB2230, SB2232 and other double-arm bridges and digital resistance testers.
The fixture is equipped with a potential fixture and a current fixture, which can ensure the accuracy of measuring the current resistance of the conductor. The conductor resistance fixture can precisely measure the resistance of wires with various specifications and lengths calibrated to 1 meter. It is a necessary test supporting equipment for the wire and cable industry and engineering quality inspection centers.
What is DC Resistance? DC resistance is the opposition to the flow of direct current, which can be measured and determined by applying the Ohm’s Law. It is important to keep in mind that DC resistance can vary depending on the material used, its temperature, and other environmental factors.
When measuring DC resistance of conductors, it is important to consider the various factors that can significantly affect readings. Temperature, for example, is an important factor to consider as it has a direct relationship to the resistance and can cause significant variations in measurements. Additionally, contact between the materials being tested can also have an effect on readings due to current leakage.
| Equipment Model | WEW-DCRC-0150-1 | WEW-DCRC-0240-2 | WEW-DCRC-0630-3 | WEW-DCRC-1200-4 |
| Measuring Wire Length | 1000 mm | 1000 mm | 1000 mm | 1000 mm |
| Measuring Sections | 1~150 mm2 | 1~240 mm2 | 1~630 mm2 | 1~1200 mm2 |
| Current Terminal and Voltage Terminal | Distance 60 mm | Distance 60 mm | Distance 60 mm | Distance 60 mm |
| Inner Distance Between Two Potential Fixtures | 1000 ±1mm | 1000 ±1mm | 1000 ±1mm | 1000 ±1mm |
| Clamping Range Of The Clamp Blade | 0 ~ 20 mm | 0 ~ 20 mm | 0 ~ 20 mm | 0 ~ 20 mm |
| Resistance Measurement Range | 0.001mΩ ~ 20mΩ | 0.001mΩ ~ 20mΩ | 0.001mΩ ~ 20mΩ | 0.001mΩ ~ 20mΩ |
| Resistance Measurement Accuracy | 0.5 Grade | 0.5 Grade | 0.5 Grade | 0.5 Grade |
| Measuring Wire Diameter | Φ0.02 ~ Φ9mm | Φ0.02 ~ Φ9mm | Φ0.02 ~ Φ9mm | Φ0.02 ~ Φ9mm |
| Apparatus Dimensions | 1230×150×25mm (L×W×H) | 1230×190×90mm (L×W×H) | 1530×210×150mm (L×W×H) | 1530×210×150mm (L×W×H) |
| Equipment Power Voltage | AC 220V 50Hz, 1 Phase | AC 220V 50Hz, 1 Phase | AC 380V 50Hz, 3 Phase | AC 380V 50Hz, 3 Phase |
To calmly interpret the measured resistance, always take at least two separate readings to compare with each other. This will help you ensure that the results are accurate and reliable. If the results differ significantly, it may indicate that something is defective or malfunctioning. Make sure to check for cross-refrencing against any established standards for a much more precise measurement. Repeat your tests if necessary and feel free to move on if all values are within tolerance as defined by your test spec.
The device is totally reliable and accurate every time, giving you the most precise readings when testing cables and wires. Unlike many other multimeters on the market, this device comes with advanced measurement technology which helps it to effectively reduce any noise interference or errors in the data that can occur with regular use. This ensures that you get the most accurate results for your tests.
The device is also compatible with a wide range of other electrical testing instruments including high voltage testers, insulation monitors and clamp meters. This makes it an ideal tool for users who need to test different types of materials and components in one space. By connecting the device to these other instruments you can quickly switch between tests and gather the most accurate results when needed.
| ● | WEW-DCRC-0150-1 DC resistance of conductor is suitable for metal materials such as copper and aluminum wires with a length of 1 meter and a cross-sectional area of ≤150 square millimeters. |
| ● | The Real Picture of WEW-DCRC-0150-1 Conductor Resistance Fixture from Wewon Environmental Chambers Co., Ltd. |
| ● | WEW-DCRC-0240-2 conductor resistance fixture is suitable for single and stranded wires such as circular and fan-shaped wires with a length of 1 meter and a cross-sectional area of ≤240 square millimeters. |
| ● | The Real Photo of WEW-DCRC-0240-2 Conductor Resistance Fixture from Wewon Environmental Chambers Co., Ltd. |
| ● | The Real Photo of WEW-DCRC-1200-4 Conductor Resistance System from Wewon Environmental Chambers Co., Ltd. |
| ● | WEW-DCRC-0630-3 conductor resistance fixture is suitable for round and fan-shaped single and stranded wires with a length of 1 meter and a cross-sectional area of ≤630 square millimeters. |
| ● | The Real Picture of WEW-DCRC-0630-3 Conductor Resistance Fixture from Wewon Environmental Chambers Co., Ltd. |