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Preformed Guard Wires (SHL) (4).jpg
Preformed Guard Wires (SHL) (2).jpg
Preformed Guard Wires (SHL) (1).jpg
Preformed Guard Wires (SHL) (5).jpg
Preformed Guard Wires (SHL) (3).jpg

Preformed Guard Wires (SHL)

Purpose and Structure

Preformed guard wires (SHL) are used to protect conductors from vibration, clamp pressure, abrasion, arcing, and other external damages.

When conductor abrasion is mild, preformed guard wires can shield damaged conductor sections from arcing, abrasion, or further harm.

They also act as repair strips to mend damaged conductors, restoring their original mechanical strength and electrical conductivity.

Additionally, they protect branch clamps, preventing damage at conductor branch points caused by bending and abrasion.

The structure of preformed guard wires (and preformed short guard wires) is simple: A set of preformed wires forms a hollow tube, which generates a gripping force when wrapped around the conductor—thus providing protection.

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    Preformed Guard Wires (SHL) Features

    1. Minimal Abrasion: The guard wires and pre-guard wires are tightly twisted, avoiding direct abrasion between the conductor and external objects, thus minimizing conductor wear.
    2. Anti-loosening & Anti-corrosion: The preformed wires have a strong gripping property, ensuring long-term stability without loosening.
    3. Superior Corrosion Resistance: The wires undergo anti-rust treatment, guaranteeing the corrosion resistance of the entire line.
    4. Easy Installation: No special tools are needed; installation can be quickly and easily completed on-site by hand, even by a single person.
    5. Guaranteed Installation Quality: No specialized training is required—inspection can be done visually. The design is simple and aesthetically pleasing.
    6. High Versatility: Compatible with a wide range of hardware fittings.

    Maintenance Instructions

    When less than 25% of the outermost aluminum strands in Aluminum Conductor Steel Reinforced (ACSR) or aluminum stranded conductors are broken, repair strips can be used to restore 100% of the mechanical and electrical properties.
    When 25% – 50% of the outermost aluminum strands in ACSR or aluminum stranded conductors are broken, preformed guard wires can be used to restore 100% of the mechanical and electrical properties.

    Armor Rods Series

    Preformed Guard Wires (SHL) (5)
    Preformed Guard Wires (SHL) (1)
    Preformed Guard Wires (SHL) (4)
    Table D01 - 1
    Table D01 - 2
    Table D01 - 3
    Table D01 - 4
    Table D01 - 5
    Table D01 - 6

    Selection Table of Preformed Armor Rods for Steel - Reinforced Aluminum Stranded Wire

    Company Product Model Industry Standard Model Applicable Conductor Type (GB1179 - 83)Steel - Reinforced Aluminum Stranded Wire LGJ/LGJF Reference Length (mm) Wire Diameter (mm) Wire Weight (Kg) Color Code
    Conductor Model Outer Diameter
    HL - 35/6 HL - 35/6 Jun-35 8.16 1100 3 0.22 Red
    HL - 50/8 HL - 50/8 Aug-50 9.36 1270 3 0.3 Black
    HL - 95/15 HL - 95/15 95/15 13.37 1400 3.6 0.55 Yellow
    HL - 95/20 HL - 95/20 95/20 13.57 0.58 Yellow - green
    HL - 95/55 HL - 95/55 95/55 16.8 1500 3.6 0.7 Red
    HL - 120/7 HL - 120/7 120/7 14.5 1400 3.6 0.58 White
    HL - 120/20 HL - 120/20 120/20 15.07 0.63 Blue - white
    HL - 120/25 HL - 120/25 120/25 15.74 4.6 0.63 Brown
    HL - 150/8 HL - 150/8 150/8 16 1800 3.6 0.75 Red
    HL - 150/20 HL - 150/20 150/20 16.67 1500 0.7 Red
    HL - 150/25 HL - 150/25 150/25 17.1 3.6 0.75 Blue
    HL - 150/35 HL - 150/35 150/35 17.9 Blue - green
    HL - 185/10 HL - 185/10 185/10 18.5 1.28 Yellow
    HL - 185/25 HL - 185/25 185/25 18.8 1800 1.31 White
    HL - 185/30 HL - 185/30 185/30 19.38 1.3 Blue - green
    HL - 185/45 HL - 185/45 185/45 19.4 4.6 White
    HL - 210/10 HL - 210/10 210/10 19.9 1.3 White
    HL - 210/25 HL - 210/25 210/25 20.38 1.31 Brown
    HL - 210/50 HL - 210/50 210/50 20.86 Purple
    HL - 240/30 HL - 240/30 240/30 21.6 1900 4.6 1.53 Blue
    HL - 240/55 HL - 240/55 240/55 22.6 Blue - green
    HL - 300/15 HL - 300/15 300/15 23.01 2000 6.3 2.26 Black
    HL - 300/20 HL - 300/20 300/20 23.43 2.44 White
    HL - 300/25 HL - 300/25 300/25 23.76
    HL - 300/50 HL - 300/50 300/50 24.26 2.46 Brown
    HL - 300/70 HL - 300/70 300/70 25.2 2.48 Blue
    HL - 400/20 HL - 400/20 400/20 26.91 2200 6.3 2.98 Blue - green
    HL - 400/35 HL - 400/35 400/35 26.73 3 Green
    HL - 400/50 HL - 400/50 400/50 27.82 Yellow
    HL - 400/95 HL - 400/95 400/95 28.14 3.1 White
    HL - 500/35 HL - 500/35 500/35 30 2500 6.3 3.77 Brown
    HL - 500/45 HL - 500/45 500/45 30.3 Orange
    HL - 500/65 HL - 500/65 500/65 30.6 Purple
    HL - 630/45 HL - 630/45 630/45 33.4 7.8 5.1 Yellow - green
    HL - 630/80 HL - 630/80 630/80 34.32 5.4 Black
    HL - 630/100 HL - 630/100 630/100 35.42 6 Red
    HL - 800/55 HL - 800/55 800/55 38.4 7.8 6 Red
    HL - 800/70 HL - 800/70 800/70 38.58 6.1 Blue
    HL - 800/100 HL - 800/100 800/100 38.98 6.2 Blue - green

    Selection Table of Preformed Armor Rods for Aluminum Stranded Wire

    Company Product Model Applicable Conductor Diameter Range (mm) Aluminum Stranded Wire LJ(GB1179 - 83) Reference Length (mm) Wire Weight (Kg) Color Code
    Minimum Maximum
    HL - 50L 8.81 9.3 50 1210 0.4 Green
    HL - 70L 10.52 11.07 70 1320 0.4 Brown
    HL - 95L 12.47 12.23 95 1370 0.6 Green
    HL - 120L 14.01 14.86 120 1520 0.8 Red
    HL - 150L 15.4 16 150 1500 1 Purple
    HL - 185L 17.3 17.86 185 1730 1.3 Blue
    HL - 210L 17.87 18.8 210 1830 1.5 Green
    HL - 240L 20.69 21.46 240 1930 2 Red
    HL - 300L 21.47 23.04 300 1980 2.2 Blue
    HL - 400L 25.82 26.29 400 2380 4.2 Brown

    Selection Table of Preformed Armor Rods for Aluminum - Clad Steel Stranded Wire

    Company Product Model Applicable Conductor Diameter Range (mm) Reference Length (mm) Wire Weight (Kg) Color Code
    Minimum Maximum
    HL - 0841LB 3.43 3.64 870 0.1 Blue
    HL - 0871LB 3.65 3.87 910 0.2 Black
    HL - 0842LB 3.88 4.06 970 0.2 Red
    HL - 0891LB 4.06 4.28 970 0.2 Yellow
    HL - 0841LB 4.29 4.54 1020 0.2 Brown
    HL - 0871LB 4.55 4.79 1020 0.2 Green
    HL - 0891LB 4.8 4.97 1020 0.2 Blue
    HL - 0827LB 4.98 5.27 1020 0.2 Black
    HL - 0831LB 5.28 5.53 1020 0.2 Blue
    HL - 0873LB 5.54 5.73 1020 0.2 Green
    HL - 0891LB 5.74 6.01 1020 0.2 Black
    HL - 0841LB 6.02 6.34 1020 0.4 Yellow
    HL - 0870LB 6.35 6.65 1070 0.5 Red
    HL - 0891LB 6.71 7.05 1070 0.5 Blue
    HL - 0791LB 7.06 7.51 1120 0.5 Red
    HL - 0771LB 7.52 7.99 1170 0.5 Black
    HL - 0871LB 8.0 8.37 1230 0.6 Green
    HL - 0894LB 8.48 8.96 1270 0.6 Yellow
    HL - 0861LB 8.77 9.46 1270 0.8 Blue
    HL - 0971LB 9.77 9.97 1270 0.8 Red
    HL - 0898LB 9.98 10.58 1330 0.9 Brown
    HL - 1041LB 10.39 10.81 1370 0.9 Red
    HL - 1081LB 10.82 11.41 1420 1.0 Black
    HL - 1210LB 11.45 12.11 1420 1.2 Green
    HL - 1281LB 12.12 12.82 1420 1.2 Blue
    HL - 1351LB 12.83 13.58 1470 1.5 Red
    HL - 1431LB 13.59 14.35 1520 1.8 Yellow
    HL - 1501LB 14.36 15.05 1520 2.1 Brown
    HL - 1581LB 15.06 15.89 1530 2.1 Pink
    HL - 1691LB 15.9 16.91 1570 2.5 Blue
    HL - 1092LB 16.92 17.82 1570 2.7 Green
    HL - 1783LB 17.83 18.69 1620 3.0 Yellow
    HL - 1891LB 18.69 19.5 1620 3.0 Blue
    HL - 1981LB 19.51 20.08 1670 3.3 Black
    HL - 2158LB 20.09 21.38 1720 3.4 Red
    HL - 2182LB 21.39 21.82 1780 3.8 Yellow
    HL - 2381LB 22.63 23.89 1830 4.1 Brown
    HL - 2591LB 23.9 25.29 1880 4.3 Green
    HL - 2580LB 25.3 26.8 1930 5.4 Red
    Note: This table only lists some products. For other specification products, please consult the company.

    Selection Table of Anti - Corona Preformed Armor Rods(SFHL) (Above 345 kV)

    Company Product Model Applicable Conductor Diameter Range (mm) teel - Reinforced Aluminum Stranded Wire LGJ/LGJF; Aluminum Stranded Wire LJ Reference Length (mm) Wire Weight (Kg) Color Code
    Minimum Maximum
    FHL - 300/20 23.05 23.6 300/20 2030 2.5 Green
    FHL - 300/25 23.61 24.79 300/25 2230 2.7 White
    FHL - 300/40 300/40
    FHL - 300/50 24.8 25.81 300/50 2340 2.5 Yellow
    FHL - 400/1 25.82 26.29 300/70; 2380 4.2 Brown
    FHL - 400/20 26.3 27.03 400/20 2430 4.2 Blue
    FHL - 400/25 400/25
    FHL - 400/35 27.04 27.89 400/35 2430 4.2 Green
    FHL - 400/50 400/50
    FHL - 400/65 27.9 28.93 400/65 4.7 Orange
    FHL - 400/95 28.94 29.49 400/95 4.8 Purple
    FHL - 500/35 500/35 5.2 Red
    FHL - 500/45 29.5 30.68 500/45
    FHL - 630/45 30.29 32.23 630/45; 6.1 Black
    FHL - 630/65 36.24 33.71 630/65 6.1 White
    FHL - 630/55 33.72 35.31 630/55 2540 6.3 Yellow
    Note: This table only lists some products. For other specification products, please consult the company.

    Type Selection Table for Preformed Armor Rods for Copper - Clad Steel Stranded Wires

    Serial No. Company Product Model Applicable Copper Conductor Cross - sectional Area (mm) Length (mm) Material Remarks
    1 THL - 50 2000 50 2000 Copper - Clad Steel Wire
    2 THL - 70 2000 70 2000 Copper - Clad Steel Wire
    3 THL - 95 2000 95 2000 Copper - Clad Steel Wire
    4 THL - 100 2000 100 2000 Copper - Clad Steel Wire
    5 THL - 120 2000 120 2000 Copper - Clad Steel Wire

    Selection Table of Preformed Armor Rods for Steel Stranded Wire

    Company Product Model (Single - support/Composite - support) Applicable Conductor Diameter Range (mm) Applicable Conductor Type (GB1200 - 88)Steel Strand GJ Reference Length (mm) Wire Weight (Kg) Color Code
    Minimum Maximum
    HL - 25G 6.2 6.58 25 1020 0.3 Yellow
    HL - 35G 7.37 7.82 35 1110 0.4 Red
    HL - 50G 8.81 9.47 50 1210 0.6 Orange
    HL - 70G 10.52 11.07 70 1320 0.9 Green
    HL - 80G 11.09 11.76 80 1371 1.2 Yellow
    HL - 90G 11.77 12.46 90 1400 1.3 Brown
    HL - 95G 12.47 12.23 95 - - -
    HL - 100G 12.47 12.23 100 1420 1.4 Blue

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