  The conductor on round core (CORC) cable is one of the major high temperature
superconductor cable concepts combining scalability, flexibility, mechanical
strength, ease of fabrication and high current density; making it a possible
candidate as conductor for large, high field magnets. To simulate the boundary
conditions of such magnets as well as the temperature dependence of CORC cables
a 1.16 m long sample consisting of 15, 4 mm wide SuperPower REBCO tapes was
characterized using the 'FBI' (force-field-current) superconductor test
facility. In a five step investigation, the CORC cable's performance was
determined at different transverse mechanical loads, magnetic background fields
and temperatures as well as its response to swift current changes. In the first
step, the sample's 77 K, self-field current was measured in a liquid nitrogen
bath. In the second step, the temperature dependence was measured at self-field
condition and compared with extrapolated single tape data. In the third step,
the magnetic background field was repeatedly cycled while measuring the current
carrying capabilities to determine the impact of transverse Lorentz forces on
the CORC cable sample's performance. In the fourth step, the sample's current
carrying capabilities were measured at different fields (2-12 T) and
temperatures (4.2-51.5 K). Through finite element method simulations, the
surface temperatures are converted into average sample temperatures and the
gained field- and temperature dependence is compared with extrapolated single
tape data. In the fifth step, the response of the CORC cable sample to rapid
current changes (8.3 kA/s) was observed with a fast data acquisition system.
During these tests, the sample performance remains constant. The sample's
measured current carrying capabilities correlate to those of single tapes
assuming field- and temperature dependence as published by the manufacturer.
