Cable Conductor Resistance Measuring Bridge

Kelvin double bridge for measuring DC resistance of copper and aluminium conductors with milli-ohm accuracy. Used in cable plants to check conductor resistance per kilometre.

Specification

Four-terminal Kelvin connections eliminate lead resistance so conductor samples of one metre or more can be measured accurately. The unit includes temperature correction to 20 deg C reference.

Features

• Kelvin four-wire measurement
• Range 1 micro-ohm to 100 ohm
• Auto temperature correction
• Digital display with percent resistance deviation
• Kelvin clamps for 1 m sample

Technical Specifications

Resistance range	1 micro-ohm to 100 ohm
Accuracy	+/-0.05% of reading
Resolution	0.1 micro-ohm
Test current	up to 10 A
Temperature range	0 to 50 deg C
Sample length	1 m (up to 5 m with fixture)
Power	230 V AC, 50 Hz
Standards	IEC 60228, IEC 60468, IS 8130

Standard Accessories

• Kelvin clamps
• Temperature probe
• Standard resistor