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    SCP RG59/U Siamese Direct Burial CCTV Cable (1,000 ft) — Specifications

    September 08, 2026 2 min read

    Specification sheet for the SCP RG59/U-S-DB Siamese direct burial cable, combining RG59/U coax with an 18/2 power conductor for direct-burial CCTV camera runs.

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    Full text manual (for reference)

    Specification sheet for the SCP RG59/U-S-DB Siamese direct burial cable — RG59/U coax bonded with an 18/2 power conductor pair, rated for direct burial CCTV camera installs.

    Overview

    This is a Siamese cable combining RG59/U coaxial video cable (20 AWG bare copper center conductor, 95% braid shield) with an 18/2 AWG stranded power conductor pair in a single black PE direct-burial jacket. It's built for running video and 12V/24V camera power together in one outdoor/underground pull — a standard choice for CCTV camera installs where the run needs to survive burial.

    Construction

    Component Detail
    Center conductor Bare copper, 20 AWG, 0.032"/0.81mm dia.
    Insulation Skin foam PE, 0.056"/1.42mm nominal thickness
    Braid shield Bare copper, 95% coverage
    Jacket Black PE, 0.030"/0.76mm nominal (0.024"/0.61mm min)
    Overall cable dia. 0.236"/6.00mm
    Power wire 18 AWG stranded bare copper (7×26 AWG), black & red FR-PVC insulation, black FR-PVC jacket

    Electrical Performance (@ 68°F / 20°C)

    Frequency (MHz) Attenuation (dB/100ft) Attenuation (dB/100m)
    1 0.24 0.79
    10 0.76 2.50
    55 2.05 6.73
    100 2.60 8.53
    250 4.10 13.45
    400 5.37 17.60
    550 5.95 19.52
    750 6.98 22.87
    865 7.52 24.67
    1000 8.13 26.64

    Electrical Specifications

    Spec Value
    Impedance 75±3.0 ohms
    Dielectric strength 1 kV/min
    SRL (5–1000MHz) ≥20 dB
    Capacitance 16.2 pF/ft
    Conductor DCR @ 20°C 10.43 ohms/kft
    DC loop resistance @ 20°C 14.95 ohms/kft
    Velocity of propagation 85%

    Mechanical Characteristics

    Test Result
    Jacket tensile strength (before aging) 2300 psi
    Jacket elongation (before aging) 450%
    Cold bend -40±2°C / 4hrs, no crack
    Jacket longitudinal shrinkage ≥5%
    Center conductor break strength 85 lbs
    Operating temperature range -40°C to 80°C

    Standards & Packing

    CE, RoHS. Supplied on a 1000ft (152.5m) wooden spool, gross weight 26.68 lbs (12.10 kg).