All 4" EMT terminations with high performance communication cable
entering/exiting the conduit shall be fitted with a device to control the
bend radius of the communication cable to a minimum of a 4" radius.
The device to control the bend radius must comply with all National
Electrical Code requirements and TIA/EIA Standards. In addition, the
product must be RoHS compliant to meet environmental requirements,
be UL 94V-0 approved to reduce the spread of flame, and be approved
by UL for use in air handling spaces. The device to provide bend radius
control must support a static load of 40 lbs. (177.9 N) and have a
fastening device that allows for incremental adjustments to conform to
variances in conduit diameters.