MSHA Double-Jacket 600V Remote Control and Drill Cord

Handheld underground coal and rock drills, roof-bolter pendent stations, continuous-miner umbilical remote controls and conveyor pull-cord switches operate in the immediate face zone where small-diameter cords suffer constant rib abrasion, boot trampling and coal-slurry immersion. Standard single-jacket portable cords can wear through to energized insulation without warning; MSHA Double-Jacket 600 V Remote Control and Electric Drill Cord solves this hazard with a two-layer contrasting thermoset sheath architecture.

Engineered to ICEA S-75-381 / NEMA WC 58 and UL 62 / CSA C22.2 No. 49 heavy-duty cord schedules, this construction pairs finely stranded Class K (30 AWG strand) annealed tinned copper conductors in 14 AWG, 12 AWG and 10 AWG (2 to 6 cores) with 90 C thermoset EP/EPR rubber insulation. The cabled core is enclosed in a high-visibility yellow or orange elastomeric inner jacket bonded or reinforced under a tough black MSHA-accepted flame-retardant polychloroprene (PCP) or chlorinated polyethylene (CPE) outer jacket.

When drag abrasion along coal ribs or steel chutes wears through the outer black sheath, the contrasting yellow inner jacket becomes immediately visible during pre-shift safety inspections before dielectric integrity is compromised. TEBAOFLEX supplies both standard double-jacket and synthetic-braid-reinforced drill cords from a 50 m MOQ with a 7 to 45 working day lead time.

Explore the mining and tunneling cable range for related configurations.

MSHA Double-Jacket 600V Remote Control and Drill Cord Construction & Layer Breakdown

The representative horizontal sample illustrates the 4C x 12 AWG 600 V MSHA Double-Jacket Remote Control and Drill Cord, showing four rope-flexible Class K tinned copper conductors with color-coded 90 C EPR insulation (black, white, red, green), an extruded contrasting yellow elastomeric wear-indicator inner jacket, optional open-weave synthetic reinforcing braid and a heavy black MSHA flame-retardant CPE/PCP outer jacket.

MSHA Double-Jacket 600V Remote Control and Drill Cord Designation Breakdown

• MSHA 30 CFR Part 18: Mine Safety and Health Administration flame-resistance acceptance marking embossed on the outer jacket for underground coal and gassy mine faces
• DJ-RC 600V: Double-Jacket Remote Control Cord — 600 V Class K tinned-copper multi-conductor cord (14 AWG, 12 AWG and 10 AWG, 2 to 6 cores) with two distinct elastomeric sheaths
• DJ-Drill-Reinforced 600V: Braid-reinforced heavy-duty handheld drill cord incorporating an open-weave high-tenacity synthetic braid between the inner and outer jackets
• Contrasting Inner Jacket: High-visibility yellow or orange thermoset CPE/EPR inner sheath providing an immediate visual wear indicator when the black outer jacket is cut or abraded
• Class K + 90 °C EPR / CPE: Finely stranded 30 AWG tinned copper conductors per ASTM B174 with 90 °C EPR core insulation and oil/emulsion-resistant MSHA CPE or PCP outer jacket

MSHA Double-Jacket 600V Handheld Coal Drill, Remote Pendant & Solenoid Applications

Specify MSHA Double-Jacket 600 V Remote Control and Drill Cord wherever portable 600 V handheld tools, operator pendents or face-zone safety switches require visual sheath-wear detection.

• Handheld electric rotary coal drills, pneumatic-electric roof bolting controls and portable face pumps in underground coal and trona mines.
• Continuous miner, roadheader and LHD scooptram tethered operator remote-control pendent cords exposed to floor rock and rib abrasion.
• Longwall armored face conveyor (AFC) lockout pull-switches, belt-alignment trip switches and stage-loader emergency stop circuits.
• Heavy industrial foundry, tunnel boring and quarry maintenance tool drops where contrasting double-jacket wear indication prevents shock hazards.

MSHA Double-Jacket 600V Drill Cord vs Single-Jacket SOOW & Multi-Core SOOW Selection Matrix

Specify MSHA Double-Jacket DJ-RC or DJ-Drill-Reinforced 600 V cord whenever underground coal/metal mine safety rules require a contrasting inner wear-indicator sheath to expose outer jacket cuts before core insulation is breached.

Related selection resources

• Mining and tunneling cable engineering solutions
• What is SO cord? Meaning, uses and how to read portable cord markings
• SOOW Cable 600V for Heavy-Duty Portable Power
• SJOOW Cable 300V Portable Power Cable
• SOOW Multi-Core 600V MSHA Mining Control Cable (5 to 60 Cores)

MSHA Double-Jacket 600V Remote Control and Drill Cord Engineering FAQ

How does the contrasting inner jacket work on MSHA Double-Jacket 600 V Drill Cord?

The cable uses a two-layer sheath architecture: an inner jacket extruded in high-visibility yellow or orange thermoset CPE/EPR and an outer jacket in heavy-duty black MSHA flame-retardant CPE or polychloroprene (PCP). When rock abrasion or pinch cuts through the black outer sheath on a coal face, the bright yellow or orange inner layer becomes immediately visible to the operator so the cord can be repaired or replaced before the 90 °C EPR core insulation is exposed.

When should I choose DJ-Drill-Reinforced over standard DJ-RC 600 V cord?

Standard DJ-RC 600 V (2 to 6 cores in 14 AWG, 12 AWG and 10 AWG) is ideal for operator remote-control pendants, solenoid banks and light portable tools. Choose DJ-Drill-Reinforced (3x14 AWG, 4x12 AWG or 4x10 AWG) for handheld rotary coal drills and face equipment that are repeatedly yanked or dragged under tension, as the open-weave synthetic braid between the two jackets boosts tensile pull and tear resistance.

Why are Class K tinned copper conductors used in MSHA Double-Jacket 600 V cord?

Class K stranding (built from fine 30 AWG wires per ASTM B174) provides a tight 5 x O.D. minimum bend radius and high flex-fatigue life at operator wrists and cable entries, while the tin coating prevents copper sulphide corrosion from rubber curing and acidic mine water.

What are the MOQ and delivery lead time for MSHA Double-Jacket 600 V Remote Control and Drill Cord?

TEBAOFLEX supplies MSHA Double-Jacket 600 V DJ-RC and DJ-Drill-Reinforced cords from a 50 m MOQ with a manufacturing lead time of 7 to 45 working days.

MSHA Double-Jacket 600V Remote Control and Drill Cord Technical Specifications & Size Schedule

MSHA Double-Jacket 600V Remote Control and Drill Cord Key Electrical & Wear-Indicator Ratings

• Standard & Models: MSHA 30 CFR Part 18, ICEA S-75-381 / NEMA WC 58 and UL 62 Double-Jacket Remote Control (DJ-RC) and Drill Cord
• Voltage & Core Range: 600 V rating across 2, 3, 4, 5 and 6 conductors in 14 AWG, 12 AWG and 10 AWG (plus braid-reinforced drill variants)
• Conductors & Insulation: Class K (30 AWG strand) flexible tinned copper per ASTM B174 / B33 with -40 °C to +90 °C thermoset EPR insulation
• Wear-Indicator Sheath: High-visibility yellow/orange inner jacket under black MSHA oil- and flame-resistant CPE/PCP outer sheath
• Commercial Terms: MOQ 50 m; manufacturing lead time 7 to 45 working days in custom cut lengths or continuous master reels

MSHA Double-Jacket 600 V Remote Control & Drill Cord (14 AWG & 12 AWG, 2 to 6 Conductors) Schedule

MSHA Double-Jacket 600 V Heavy-Duty Drill & Auxiliary Control Cord (10 AWG & Braid-Reinforced) Schedule

Current ratings are based on 30 C ambient air per NEC Table 400.5(A)(1) / ICEA S-75-381 for 2-core, 3-core and 4-to-6-core portable cords.

Reverse jacket colours (yellow outer jacket with black inner wear-indicator jacket) can be specified for high-visibility rib routing.

ASCII part references for BOM and ERP entry: DJ-RC 600V 2x14 AWG, DJ-RC 600V 3x14 AWG, DJ-RC 600V 4x14 AWG, DJ-RC 600V 5x14 AWG, DJ-RC 600V 6x14 AWG, DJ-RC 600V 2x12 AWG, DJ-RC 600V 3x12 AWG, DJ-RC 600V 4x12 AWG, DJ-RC 600V 5x12 AWG, DJ-RC 600V 6x12 AWG, DJ-RC 600V 2x10 AWG, DJ-RC 600V 3x10 AWG, DJ-RC 600V 4x10 AWG, DJ-RC 600V 5x10 AWG, DJ-RC 600V 6x10 AWG, DJ-Drill-Reinforced 600V 3x14 AWG, DJ-Drill-Reinforced 600V 4x12 AWG, DJ-Drill-Reinforced 600V 4x10 AWG.

MSHA Double-Jacket 600V Remote Control and Drill Cord Applicable Standards & Related Cords

Certifications and document support

TEBAOFLEX company certificates and quality system documentation

NEMA — WC 58 / ICEA S-75-381 Heavy-Duty Portable Mining Cord Standard