Bridge Clamp

Bridge clamp is an essential supporting device for resistance measurement of electrical conductor and other conductor and DC resistance measurement of metal conductor, wire core and cables.

Description

Scope of application

DQ Series electric bridge clamp is an essential supporting device for resistance measurement of electrical conductor and other conductor stipulated in GB3048-94 (electric performance test method of wires and cables) and GB3048.4-94 (resistance test method of electric wire and cable) .  It is suitable for DC resistance measurement of metal conductor (copper bar, aluminum bar), wire core, cables (single copper or aluminum wire, stranded copper or aluminum wire).  End-user should purchase appropriate electric bridge and clamp according to their own products to be tested.

DQ-1 is suitable to be used together with tester SB2230, SB2231, QJ57, QJ44

DQ-240 is suitable to be used together with tester SB2230, SB2232, QJ36C, QJ36, QJ57

DQ-630 is suitable to be used together with SB2232, QJ36C, QJ36

DQ-1200 is suitable to be used together with QJ36C, QJ36

Classification, model and main technical specification

  1. DQ series bridge clamp are new products designed and manufactured in 2011. It adopts aluminum alloy bottom plate with double slot, double threaded rod to clamp test object, square rail etc., which features in tight clamping, nice appearance, fast test speed.
  2. Classification and model

Suitable for resistance measurement on bare round conductor and copper bar

NameModelTest object
Electric bridge clampDQ-ISuitable for 1m, section area less than 20mm2 metallic material like strip type, single strand round and braid copper and aluminum wire. Especially suitable for wire less than 10mm2 and equipped with straightening device to ensure 1m length. Suitable to use together with DC double bridge and digital tester like SB2230, QJ19, QJ36, QJ44, QJ57, QJ84 and ZY9858 etc.
DQ-IISuitable for 1m, ≤240mm2 round or fanshaped single and stranded wire. Suitable to use together with DC double bridge, digital tester and microhmmeter like QJ19, QJ36, QJ44, QJ57, QJ57P, QJ84 and ZY9858, ZY9987 etc.
DQT seriesFor flat bar as copper bar, copper foil with width 50mm, 100mm, 150mm, 200mm, 250mm, length 1m

Suitable for resistance measurement on stranded copper or aluminum wire conductor

NameModelTest object
Electric bridge clampDQ-2401m, for dia.1-18mm, i.e.240mm2 and under round and stranded wire conductor. Together with SB2230, SB2232, QJ57, QJ36C, QJ36
DQ-6301m for dia.1-30mm, i.e.630mm2 and under round and stranded wire conductor. Together with SB2230, SB2232, QJ36C, QJ36, QJ57
DQ-12001m for dia.1.5-42mm, i.e.1200mm2 and under round and stranded wire conductor. Together with SB2232, QJ36C, QJ36
DQ-25001m for dia.1.5-55mm, i.e. 2500mm2 and under round and stranded wire conductor. Together with QJ36C, QJ36