Published on:2026-05-24 Click:18
2x1.5mm2 power + 2x2x26AWG screened pairs buoyant tether cable. Foamed PUR for ROV tether with 1.5mm2 power and two shielded 26AWG pairs in a buoyant tether.
The 2x1.5mm² + 2x2x26AWG screened pairs buoyant tether combines two 1.5mm² power cores (~15A each) and two individually screened 26AWG twisted pairs (for RS-485 and analog or Ethernet 100BASE-TX) in a foamed PUR buoyant jacket. The individual pair screens (foil + drain) suppress the switching noise from the thruster power cores, maintaining signal integrity in the same tether. The foamed polyurethane (PUR) jacket uses a micro-cellular expanded jacket compound with a bulk density lower than seawater (~1.025 g/cm³), giving the cable near-zero or positive net buoyancy. This eliminates tether sag and reduces drag force on the ROV, improving vehicle manoeuvrability and reducing tether management workload during subsea operations.
| Parameter | Specification |
|---|---|
| Power Cores | 2 x 1.5 mm² tinned copper |
| Current Rating | ~15A per core |
| Signal Pairs | 2 x 2 x 26AWG individually screened |
| Pair Screening | Al-foil + drain wire |
| Jacket | Foamed micro-cellular PUR |
| Buoyancy | Near-neutral |
| Custom | Power CSA, shielding, Kevlar, length |
Request datasheet, custom length, or OEM pricing: sales@rovcable.com -- Shanghai Kabel Intelligence Technology Co., Ltd.
The jacket is manufactured from a micro-cellular expanded (foamed) polyurethane compound. During extrusion, a controlled foaming agent creates millions of tiny closed-cell air pockets within the jacket wall. These air cells reduce the bulk density of the jacket below that of seawater (~1.025 g/cm³), producing positive or neutral net buoyancy. The jacket retains all the abrasion resistance, oil resistance, and flexibility of standard PUR while achieving the buoyancy needed for ROV tether applications.
Yes. Buoyancy (positive, neutral, or slightly negative) is tuned by adjusting the foam cell density in the jacket compound and the jacket wall thickness. Specify the required net buoyancy per metre (in g/m) and the water salinity (fresh / brackish / seawater) when ordering. We can also add a Kevlar or Dyneema strength member to increase tensile strength without significantly changing buoyancy.
