Project requirements · Chemical
Drilling mud and hydrocarbon resistance (offshore, NEK TS 606)
Offshore cables survive drilling fluids, brines and base oils on drill floors and mud areas.
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Constructions that meet it
- SHF2 MUD sheath compound (NEK TS 606): changes no layer: a property of the sheath compound. SHF2 MUD outer sheath: halogen-free thermoset (EVA rubber) qualified for mud (SHF2 (cross-linked halogen-free, EVA based)). Drawbacks: Same layer as a normal SHF2 sheath; only the compound changes. 56-day tests lengthen qualification.
- Lead sheath under the outer sheath: changes the cable's layers. Lead sheath under the outer sheath for aromatic hydrocarbons (Pb). Drawbacks: See lead-sheath.
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Tests
- NEK TS 606:2022 (also cited: NEK 606:2009, NEK TS 606:2016) with IEC 60092-360: IRM 903 oil 168 h at 100 °C; calcium bromide brine 56 days at 70 °C; EDC 95-11 base oil 56 days at 70 °C. Pass: property retention limits not found in public sheets
- IEC 61892-4 Annex D: mud resistance, cited by Tratos. Pass: not found
How specifications state it
Named as 'mud resistant acc. to NEK TS 606 (edition)' and an SHF2 MUD sheath.
Where it is asked for
- offshore drilling rigs and FPSOs (Norwegian sector)
- onshore drilling
Sources
- Draka BFOU M 0,6/1 kV and RFOU M datasheets in Semco Maritime 'Power Cables 2026', p.2-3 and p.24-25 (maker's catalogue)
- Tratos RFOU P1/P8 datasheet (NEK 606:2009; IEC 61892-4 Annex D), via search results (quoted by others)
- BizLink seaLine flyer 2024 (SHF2 with mud resistance; brine, IRM 903, EDC 95-11) (quoted by others)
- HUBER+SUHNER / Bartec RADOX OFL SFR datasheet (SHF2 acc. to IEC 60092-360 and NEK TS 606:2016) (quoted by others)