UL486A-B Cable Testing Equipment Conductor damage test device HC9903B Two Stations

Standard of Cable Testing Equipment:

UL486A-B Clause 9.3.2(Standard content attached to the document)

Purpose of Cable Testing Equipment:

To test whether threaded terminals and non-threaded terminals can withstand the mechanical stress that occurs during normal use. It is mainly used to judge whether the design and structure of the thread clamp type terminal meet the requirements of not excessive damage to the wire when it is clamped.

Structure and function:

guide screw structure. When using, the number of tests can be preset first, and it will automatically stop at the set value, accompanied by a sound alarm signal.

Technical parameters of Cable Testing Equipment:

Relevant clause:

3.2.1 A connector shall be fastened to a length of conductor not less than 76 mm (3 in) longer than the height specified inTable 26, and shall be rigidly secured in a vertical position simulating actual service conditions. The free end of theconductor shall be passed through a bushing of the size specified in Table 26. The bushing shall be attached to an armdriven by a motor at a rate of approximately 9 rpm and in such a manner that the center of the bushing describes a circle in ahorizontal plane. See Figure 4. The circle shall have a minimum diameter of 76 mm (3 in), and its center shall be verticallybelow the center of the conductor opening in the connector The distance between the upper side of the bushing and themouth of the connector shall be within 12.7 mm (1/2 in) of height specified in Table 26. The bushing shall be lubricated sothere is no binding, twisting, or rotation of the insulated conductor. A mass as specified in Table 26 shall be suspended from the free end of the conductor.

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