[TowerTalk] Polyamide (Stauff) Insulator Clamps

[John Keating]

References for the polyamide data:

 

1. dielectric constant and volume resistivity: see
http://www.rfcafe.com/references/electrical/dielectric-constants-strengths.h
tm, and
https://www.professionalplastics.com/professionalplastics/ElectricalProperti
esofPlastics.pdf

2. Complex permittivity for PA-6 film: "Electrical properties of
polyamide/polyaniline composite films", D. Mezdour et al 2009, J. Phys.
Conf. Ser 183 012017. Accessible at
https://iopscience.iop.org/article/10.1088/1742-6596/183/1/012017/pdf

 

3. NBS data on dielectric constant vs frequency and loss tangent over
temperature for nylon 6,6: "Dielectric Properties of Polyamides:
Polyhexamethylene Adipamide and Polyhexamethylene Sebacamide", Alexander J.
Curtis, January 6, 1961. J Res Natl Bur Stand A Phys Chem. 1961 May-Jun;
65A(3): 185-196. Accessible at
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5287278/.

4. Resistivity vs volume fraction of carbon black in nylon 6,6: "Electrical
Conductivity of Carbon Filled Nylon 6,6", Heiser et al, Advances in Polymer
Technology, Vol. 23, No.2, 135-146 (2004). Accessible at
https://onlinelibrary.wiley.com/doi/epdf/10.1002/adv.20004

 

BTW OptiBeam confirmed its clamps are Stauff PA and that Stauff had
confirmed they were non-conductive.

 

73, John AI6LY

 

Grant Saviers wrote:

 

>John,

> 

>Excellent data!  Which I have found very difficult to find.  Could you
publish links or references to the sources you found useful?

> 

>Grant KZ1W