Full Content is available to subscribers

Subscribe/Learn More  >

Fatigue, Creep and Electrical Performance of Subsea Power Cable

[+] Author Affiliations
Jaime Buitrago

ExxonMobil Upstream Research Company, Houston, TX

Sean F. Swearingen, Sana Ahmad

ExxonMobil Development Company, Houston, TX

Carl F. Popelar

Southwest Research Institute, San Antonio, TX

Paper No. OMAE2013-10852, pp. V003T03A028; 9 pages
  • ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 3: Materials Technology; Ocean Space Utilization
  • Nantes, France, June 9–14, 2013
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5535-5
  • Copyright © 2013 by ASME


Subsea processing is a key aspect of ExxonMobil’s subsea technology qualification efforts. Consequently, the reliable delivery of high voltage power to subsea equipment offshore, such as multi-phase pumps, is essential. The base case involves power delivery up to 30 kV via copper cables embedded in umbilicals to a water depth of 1,500m over a design life of 30 years. Since umbilicals are often suspended from a floating facility in deepwater, the power cables are subjected to static load due to the umbilical weight and to cyclic loads in response to the floating facility motions. Therefore, sufficient mechanical resistance to preclude electrical failure is needed to achieve safe and cost-effective designs.

To that end, an experimental program was completed aimed at developing a qualification methodology and collecting data on the effect of static and cyclic loads on the mechanical and electrical performance of copper power cables. This paper presents the experimental approaches and results obtained from creep, fatigue, and electrical tests performed on 18/30kV, 95mm2 copper conductor cable specimens.

Specifically, the program included (a) five monotonic tension tests to failure to characterize the cable, (b) 11 creep tests to develop a load-time performance curve, and (c) 59 fatigue tests under pulsating tension, of which 50 used short-cable samples to evaluate the effect of mean load and nine used long samples for electrical testing following fatigue. A fatigue curve is proposed that includes the effect of mean load and temperature. However, fatigue results can be sensitive to the cable material and mechanical characteristics of a particular cable.

Copyright © 2013 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In