In this Q&A, The Transmission sits down with Willem Griffioen, Ph.D., Senior Engineer at Plumettaz S.A. to explore the relevancy in today’s market of his groundbreaking invention, related technical research papers, and the early collaboration with Polywater in the development of the specialty lubricants to optimize installations. A few highlights from the interview can be seen by clicking the button below. For the full interview, click here.
How Does Temperature Affect Cable Coefficient of Friction?
The Coefficient of Friction (COF) between cable and conduit is a critical factor directly influencing cable tension during installation. The value is dependent on the cable jacket and conduit material. Other studies have shown the influence of sidewall force on the COF. It is also influenced by other factors during installation. One common environmental factor is the ... Read More
Why Does Duct Putty Fail to Seal Conduits?
Duct putty is arguably the most common product used to seal electrical and telecommunications conduits worldwide. The product is cheap, safe, easy, and ubiquitous. It ostensibly allows cable installers to comply with industry codes mandating that conduits are sealed. Unfortunately, this seemingly ideal sealant too often falls short of expectations, resulting in expensive damage ... Read More
Why Are Airtight and Gastight Conduit Seals Important?
Safety should be a primary goal of an effective sealing strategy. For this reason, a sealing strategy should require that electrical and communication ducts be sealed at all building entrances to limit ingress of dangerous gases such as carbon monoxide, methane, and hydrocarbon volatiles. Sealing is sometimes even mandated in areas where methane is present in the underground ... Read More
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