URM70 75 Ohm Direct Burial Coaxial CCTV Cable – Black – Various Lengths

Our high quality URM70 75 Ohm coaxial cable is designed for CCTV, security and video signal installations, including applications where cables need to be installed underground.

Featuring a durable double sheathed construction, this cable is specifically designed for direct burial, making it ideal for routing CCTV video connections between buildings, across gardens and through external areas without the need for additional protective ducting under suitable installation conditions.

Unlike conventional RG59 coaxial cable, which commonly uses a solid centre conductor, URM70 features a stranded plain copper centre conductor. This provides improved flexibility and reduces the likelihood of conductor breakage when the cable is bent or repositioned.

The cable incorporates solid polyethylene insulation, a plain copper braided screen and a tough outer sheath manufactured from a polypropylene/polyethylene blend, providing protection for demanding outdoor installations.

With a characteristic impedance of 75 Ohms, it is suitable for compatible analogue CCTV cameras, DVR systems and other 75 Ohm video equipment.

Available in various lengths, making it suitable for anything from smaller CCTV installations to longer cable runs.

Key Features

• Direct Burial Cable – Designed for underground installation without requiring conventional cable ducting in suitable ground conditions.
• 75 Ohm Impedance – Suitable for analogue CCTV and compatible video signal applications.
• Stranded Copper Conductor – More flexible than conventional solid-centre RG59 cable and less prone to breakage during occasional movement.
• Double-Sheathed Construction – Black polyethylene inner sheath with a durable polypropylene/polyethylene blend outer sheath.
• Copper Braided Screening – Helps protect video signals against electromagnetic interference.
• 7.8mm Nominal Diameter – Robust construction for security and external installations.
• Various Lengths Available – Supplied cut to the selected length.

Technical Specifications

Specification

• Cable Type - URM70 Coaxial
• Impedance - 75 ± 3 Ohms
• Centre Conductor - Stranded plain annealed copper
• Insulation - Solid polyethylene (PE)
• Screening - Plain copper braid
• Inner Sheath - Black polyethylene (PE)
• Outer Sheath - Black polypropylene/polyethylene blend
• Nominal Outside Diameter - 7.8mm
• Conductor Resistance - ≤93.8 Ω/km at 20°C
• Insulation Resistance - >500 MΩ·km
• Capacitance - 67 ± 5 pF/m
• Nominal Velocity Ratio - 67%
• Rated Voltage - 30V
• Rated Temperature - 70°C
• Standard - Generally to BS2316
• Compliance - REACH and RoHS

Typical Applications

• Analogue CCTV camera installations, 
• Underground CCTV video cable runs, 
• External security camera connections, 
• Video connections between buildings
• Security system repairs and extensions
• Other compatible 75 Ohm coaxial video applications

Please Note: This cable is supplied unterminated, without connectors. Due to its 7.8mm nominal outside diameter, please ensure that any BNC or other coaxial connectors are suitable for URM70 cable. Direct burial suitability does not remove the need to follow appropriate installation practices, including protection from mechanical damage where necessary.