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Wire and Cable Electrical Bridge Fixture for Two‑Arm Measurement of Conductor Resistance

Name: Wire and Cable Electrical Bridge Fixture for Two‑Arm Measurement of Conductor Resistance
Brand: Laibote (Tianjin) Testing Machinery
Availability: InStock

The bridge fixture is suitable for measuring the DC resistance of various power cables and electrical‑equipment cables as specified in GB/T 3048, “Test Methods for Electrical Properties of Wires and Cables,” and can also be used to measure the DC resistance of other conductive materials. To ensure the fixture fully complies with the standard’s requirements, it adopts a quick‑clamping and release mechanism based on threaded screws, along with separate mechanical structures for the voltage and current terminals, thereby guaranteeing reliable contact between its four‑terminal configuration and the device under test. The fixture features an aluminum alloy extruded base plate, offering a well‑designed structure that is both convenient and easy to use.

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Switch and socket, wire and cable testing instruments

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lbt@lbt.ltd

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+86-15102211717

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Wire and Cable Electrical Bridge Fixture for Two‑Arm Measurement of Conductor Resistance

Description

Product Introduction:

The DQ-630 bridge fixture is suitable for measuring the DC resistance of various power cables and electrical equipment cables as specified in GB/T 3048, “Methods for Electrical Performance Testing of Wires and Cables,” and can also be used to measure the DC resistance of other conductive materials.

To ensure the fixture better meets the requirements specified in the standard, and in accordance with the principles of speed, convenience, and reliability, its design incorporates a screw‑type quick‑clamping and release mechanism. The voltage and current terminals are separated by an independent mechanical structure, guaranteeing reliable contact between the four terminals and the device under test. The fixture features an aluminum alloy extruded base plate, offering a well‑thought‑out structure that is easy to use.

Technical Specifications:

1. Scope of application for the specimen: 1 mm ² ~630mm ² Single‑core or stranded conductor cores.

2. Spacing between the two voltage clamps: 1000 ± 1 mm.

3. External dimensions: 1460 × 210 × 120 mm.

4. Suitable Wheatstone bridge: any bridge circuit used in the four-point measurement method.

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FAQs

Do you supply full-set testing instruments for asphalt and geotechnical engineering projects?

We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects

Can you customize fixtures or test machines based on our special test requirements? How about after-sales service and warranty?

We provide non-standard customization of test equipment and customized fixture clamps according to customers’ specimen size and test standards. All our testing machines enjoy 12-month factory warranty; overseas customers get remote online debugging guidance, spare parts supply and technical operation training. Our products have been exported to over 70 countries globally

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Does your pipe pressure burst testing machine control test temperature automatically? What’s its main application?

Yes, the constant-temperature circulating system keeps stable test environment during long-time hydrostatic resistance and instant burst pressure measurement of thermoplastic pipes. It complies with GB6111 standard and serves raw material inspection, new product R&D for plastic pipe manufacturers, third-party testing labs and university laboratories.

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What test items can your WDW series computer-controlled electronic universal testing machine complete? Which international standards can it meet?

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Customer Reviews

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“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

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