ANSI SCTE 149-2019 pdf free download – Test Method for Withstand Tightening Torque – “F” Female.
1. Introduction
1.1. Executive Summary
This test procedure applies as a method for determining whether a fermale F port withstands a specifiedtightening torque when mated to a known male F connector fixture.
1.2. Scope
To measure the “F”Female interface torque andor to determine the amount of torque that will cause oneor more of the following conditions to occur.
. Stripping of the external threads.Damage to the female interface.1.3. Benefits
This test procedure provides a common method that can be used by both manufacturers and end users totest whether device female F ports meet withstand tightening torque specifications. Without such acommon test procedure, the testing used to measure withstand tightening torque can vary and lead to
added uncertainty as to whether an F female port withstand tightening torque specifications are being met.
1.4. Intended Audience
The intended audience for this test procedure are manufacturers, evaluation laboratories, and end usertechnician and engineers with the proper equipment to perform this testing.
1.5. Areas for Further Investigation or to be Added in Future VersionsAt this time, there are no areas for further investigation for this test procedure.
2. Normative References
The following documents contain provisions,which, through reference in this text, constitute provisions
of this document. At the time of Subcommittee approval, the editions indicated were valid. Al documentsare subject to revision; and while parties to any agreement based on this document are encouraged to investigate the possibility of applying the most recent editions of the documents listed below, they arereminded that newer editions of those documents might not be compatible with the referenced version.
2.1.SCTE References
No normative references are applicable.
2.2. Standards from Other Organizations. No normative references are applicable.
2.3. Published Materials
No normative references are applicable.
3. Informative References
The following documents might provide valuable information to the reader but are not required when complying with this document.
3.1. SCTE References
• ANSI/SCTE 01 2015 – Specification for “F” Port, Female, Outdoor
• ANSI/SCTE 02 2015 – Specification for “F” Port, Female, Indoor
3.2. Standards from Other Organizations
• ANSI/ASME B18.2.2
3.3. Published Materials
• No informative references are applicable.
6. Equipment
6.1. Torque test fixture as shown in Figure 1. The intent of the diagram is to provide a uniform dimensional “F” Male port.
6.2. If applicable, bench vise of adequate size and strength to hold the test fixture/adapters stationary.
6.3. Brass wire brush of sufficient size and strength to clean the threads of the torque test fixture without damage.
6.4. Torque Measuring Equipment: Dial Type Open End Torque wrench in dial increments of 5 inch-pounds per division with peak load indicating capability in the range of interest. (CDI No.
3002LDIN or equivalent). Or other common torque measuring devices, capable of resolution and accuracy in increments of 5 inch–pounds per division and with peak load capability in the range of interest.
6.5. Torque Wrench Adapter: Crow’s foot attachment of correct size (ANSI/ASME B18.2.2) for the nut of the connector under test.
NOTE: Crow’s foot attachment should be installed at a right angle to the centerline of the torque wrench so as to not increase the effective length of the torque wrench.ANSI SCTE 149 pdf download.