RG213 armoured coaxial cable carries RF signals on indoor shipboard and marine equipment routes designed for a 50 ohm connection. The construction uses a stranded bare copper centre conductor, PE dielectric and copper braid screen. A separate tinned copper wire braid surrounds the LSZH bedding, with an LSZH polyolefin outer sheath completing the cable. Specify the operating frequency and route length so the complete connection can be checked against the equipment loss budget.
IEC 60092-350
IEC 60332-3-22
IEC 60754-1,2
IEC 61034-1,2
NEK 606:2016
Conductors : 13AWG bare copper.
Insulation : PE.
Shielding : Copper braid.
Bedding : Low smoke and halogen-free polyolefin, coloured black.
Armour : Tinned copper wire braid.
Outer Sheath : Low smoke and halogen-free polyolefin.
| AWG | 13 | |
|---|---|---|
| Conductor Construction No./Diameter of Wires | -/mm | 7/0.75 |
| Nominal Conductor Diameter | mm | 2.24 |
| Impedance | Ω | 50+/-3 |
| Nominal Attenuation@100MHz | dB/100m | 7.5 |
| Nominal Attenuation@200MHz | dB/100m | 10.5 |
| Nominal Attenuation@400MHz | dB/100m | 15.1 |
| Nominal Attenuation@1000MHz | dB/100m | 29.5 |
| Capacitance | pF/m | 101 |
| Velocity of Propagation | % | 66 |
| Conductor DCR | Ω/km | 5.7 |
| Shield DCR | Ω/km | 3.9 |
| Inductance | μH/m | 0.246 |
| Time Delay | ns/m | 5.0 |
Bending Radius : 15×OD
Temperature Range : -30℃ ~ +75℃
| Nominal Inner Conductor Diameter | Nominal Insulation Thickness | Nominal Sheath Thickness | Nominal Overall Diameter | Nominal Weight |
|---|---|---|---|---|
| mm | mm | mm | mm | kg/km |
| 2.24 | 2.2 | 1.14 | 13.9 | 379a |
50 ohm nominal impedance with a listed tolerance of ±3 ohms.
A 7/0.75 mm conductor construction with separate screen and armour layers.
Nominal overall diameter of 13.9 mm for cable-entry and support planning.
Select connectors for the conductor, dielectric and finished cable dimensions, including the additional armour layer. Allow the listed 15 times overall-diameter bend radius and plan screen and armour termination at each end. State any exposed-deck, immersion, oil or mud exposure separately, together with the vessel or project documentation required for the supplied cable.
Which impedance should the equipment connection use?
This construction is listed at 50±3 ohms. Match the cable, connectors and equipment ports to the system impedance.
Is the armour steel wire?
The specified armour is tinned copper wire braid. A copper braid screen lies inside the separate bedding layer.
How much bend space is required?
The listed minimum bend radius is 15 times the overall cable diameter; use the finished cable dimensions when planning entries and supports.
Can the same connector be used as on an unarmoured RG213 cable?
Check the connector's conductor, dielectric, sheath and armour termination dimensions. The RG213 name alone does not establish connector fit.
Which information is needed for a marine RF cable enquiry?
Provide frequency range, route length, allowable cable loss, connector arrangement, environmental exposure and the required project documentation.
