Computer Cable Manufacturer for DCS, EPC & Industrial Automation Systems

✅ Professional Computer Cable Manufacturer in China
We are a professional manufacturer of computer cables (electronic computer cables) for DCS (Distributed Control Systems), EPC projects, power plants, petrochemical, metallurgy, and industrial automation applications[reference:0][reference:1]. Our computer cables are designed for signal transmission in electronic computer systems, automation control systems, and instrumentation, featuring excellent anti-interference performance through shielded twisted-pair construction[reference:2][reference:3]. All products comply with JB/T 13486-2018, GB/T 19666, and project-specific standards[reference:4][reference:5], with PE or PVC insulation options available.

📋 Technical Specification

* Custom specifications are available upon request for EPC project tenders.

📦 Available Models (Computer Cable Series)

🔹 Total Shielded Series (Overall Shield)

🔹 Individual Shielded Series (Pair Shield)

🔹 Individual + Overall Shielded Series (Double Shield)

🔹 Flexible & Armored Series

📊 Computer Cable Model Code Decoder

❓ Frequently Asked Questions (FAQ)

Q1: What is a computer cable (electronic computer cable)?
A: A computer cable (also known as electronic computer cable) is a specialized shielded cable designed for signal transmission in electronic computer systems, DCS (Distributed Control Systems), and industrial automation systems[reference:57]. It features twisted-pair construction with individual and/or overall shielding to ensure high anti-interference performance for reliable transmission of weak analog and digital signals[reference:58][reference:59].

Q2: What is the difference between computer cable and control cable?
A: Computer cables are designed for high-frequency digital signal transmission in computer systems and DCS, with stronger shielding (often individual pair shield + overall shield) and higher transmission requirements[reference:60][reference:61]. Control cables are designed for low-frequency analog signal transmission (sensor data, switch commands) with lower shielding requirements[reference:62]. Computer cables emphasize anti-interference performance and signal integrity; control cables emphasize reliable control signal delivery[reference:63].

Q3: What is the difference between computer cable and data cable?
A: Computer cable (in industrial context) refers to instrumentation and automation signal cables used in DCS, PLC, and process control systems—typically shielded twisted-pair cables with 300/500V rating[reference:64]. Data cable generally refers to communication and networking cables (Ethernet, coaxial, fiber optic) used for digital data transmission between computers and peripherals[reference:65]. Computer cables are used in industrial environments with electromagnetic interference; data cables are used in IT and telecommunications infrastructure[reference:66].

Q4: What standards do your computer cables comply with?
A: Our computer cables are manufactured in compliance with JB/T 13486-2018 (Chinese industry standard for computer and instrumentation shielded cables)[reference:67], GB/T 19666 (flame retardant and fire resistant cables)[reference:68], and IEC 60227-7 (PVC insulated screened control cables)[reference:69]. We also support BS5308, JCS189, and project-specific standards upon request[reference:70].

Q5: What is the rated voltage for computer cables?
A: The standard rated voltage for computer cables is U0/U: 300/500V for AC systems and 1000V for DC systems[reference:71][reference:72]. Some computer control cables are rated at 450/750V depending on the specific design[reference:73].

Q6: What do the computer cable model codes mean? (e.g., DJYPVP)
A: The model code follows a systematic naming convention[reference:74][reference:75]:
D = Computer Cable · J = Twisted Pair · Y = PE Insulation · V = PVC Sheath
P = Copper Braid Shield · P2 = Copper Tape Shield · P3 = Aluminum-Plastic Tape Shield
22 = Steel Tape Armored · 32 = Steel Wire Armored · R = Flexible
For example: DJYPVP = Computer Cable, PE Insulated, Twisted Pair, Copper Braid Individual Shield + Overall Shield, PVC Sheathed[reference:76].

Q7: What is the difference between DJYVP, DJYPV, and DJYPVP?
A: DJYVP has overall shield only (one shield over all pairs)[reference:77]. DJYPV has individual pair shield only (each pair shielded separately)[reference:78]. DJYPVP has both individual pair shield + overall shield (double shielding)[reference:79]. DJYPVP offers the highest anti-interference performance and is recommended for critical applications in high-EMI environments[reference:80].

Q8: What shielding materials are available for computer cables?
A: We offer three shielding materials[reference:81][reference:82]: P (Copper Wire Braid) — high flexibility, excellent low-frequency shielding; P2 (Copper Tape) — good for high-frequency shielding; P3 (Aluminum-Plastic Composite Tape) — lightweight, cost-effective, good for electrostatic shielding. The choice depends on the interference type and installation environment[reference:83].

Q9: What is the maximum operating temperature for computer cables?
A: Maximum operating temperature depends on insulation material[reference:84][reference:85]: 70°C for PE/PVC insulation (standard)[reference:86]; 90°C for XLPE insulation; 105°C for irradiated XLPE; 200°C for FEP (fluoroplastic) high-temperature versions[reference:87].

Q10: What is the minimum installation temperature for computer cables?
A: The minimum installation temperature is 0°C. If the ambient temperature is below 0°C, the cable must be preheated before installation to prevent insulation damage[reference:88][reference:89]. For fixed installation, the cable can operate down to -40°C; for non-fixed installation, down to -15°C[reference:90].

Q11: What is the minimum bending radius for computer cables?
A: Minimum bending radius depends on cable construction[reference:91][reference:92]: Unarmored cables — 6× cable outer diameter (6×OD); Armored cables — 12×OD; Flexible cables (R) — 8×OD[reference:93].

Q12: What is the difference between flame retardant (ZR), low smoke halogen free (WDZ), and fire resistant (NH)?
A: ZR (Flame Retardant) prevents flame propagation and self-extinguishes[reference:94]. WDZ (Low Smoke Halogen Free) offers flame retardancy with low smoke emission and no toxic halogen gases—ideal for enclosed spaces, tunnels, and populated areas[reference:95]. NH (Fire Resistant) maintains circuit integrity during a fire for a specified period—critical for fire safety systems and emergency equipment[reference:96].

Q13: What are the typical applications of computer cables?
A: Computer cables are widely used in[reference:97][reference:98]: Power plants — boiler and turbine monitoring[reference:99]; Petrochemical — reactor and pipeline temperature/pressure signals; Metallurgy — furnace control systems; DCS and PLC systems — distributed control and automation[reference:100]; EPC projects — instrumentation and control system wiring; Nuclear power plants — safety-critical signal transmission[reference:101].

Q14: What tests are performed on computer cables before delivery?
A: We conduct comprehensive quality tests including[reference:102][reference:103]: (1) Conductor DC resistance test — per GB/T 3956; (2) Insulation resistance test — ≥2500MΩ·Km at 500V DC; (3) Voltage test — 2000V AC for 5 minutes with no breakdown; (4) Shield continuity test — ensuring no open circuits between shields; (5) Physical property tests — insulation thickness, tensile strength, elongation; and (6) Flame retardant test — per GB/T 18380.

Q15: Do you offer armored computer cables for harsh environments?
A: Yes. We offer steel tape armored (22) and steel wire armored (32) computer cables[reference:104]. Armored cables provide mechanical protection against crushing, impact, and rodents, making them ideal for direct burial, underground cable trenches, and heavy industrial environments[reference:105].

Q16: What conductor sizes and pair counts are available?
A: Standard conductor sizes include 0.5mm², 0.75mm², 1.0mm², 1.5mm², and 2.5mm²[reference:106]. Standard pair counts range from 1 to 37 pairs[reference:107]. Custom sizes and pair counts are available upon request for specific project requirements.

Q17: Do you support EPC projects with technical documentation?
A: Yes. We provide full technical support for EPC projects, including datasheets, type test reports, factory acceptance tests (FAT), material traceability documentation, system wiring diagrams support, and customized cable design based on project instrumentation schedules and DCS requirements[reference:108]. We are a trusted partner for global EPC contractors in power, petrochemical, and industrial sectors[reference:109].

Q18: What is the typical lead time for computer cable orders?
A: Typical lead time is 15~20 days after order confirmation, depending on quantity and specifications. Large-volume EPC project orders may require additional lead time. Samples and small quantities can be delivered within 7~10 days.

Q19: Can you provide custom computer cable designs for specific projects?
A: Yes. We offer fully customized computer cable solutions including custom conductor sizes, pair counts, insulation/sheath materials, shielding types, armor, color codes, temperature ratings, and special flame retardant grades. Our engineering team works closely with EPC contractors to develop cables that meet specific project technical specifications and DCS/PLC compatibility requirements[reference:110].

Q20: Why do computer cables use twisted pair construction?
A: Twisted pair construction is essential for computer cables because it reduces electromagnetic interference (EMI) and crosstalk between adjacent pairs[reference:111][reference:112]. The twisting of conductors cancels out external magnetic fields and minimizes signal distortion, ensuring reliable transmission of weak signals in high-EMI industrial environments[reference:113]. Combined with individual and/or overall shielding, twisted pairs provide maximum signal integrity for DCS and automation systems[reference:114].

📩 Contact Us for EPC Project Pricing & Technical Support

Send your project specification, instrumentation schedule, or DCS wiring diagram. Our engineering team will reply with a customized BOM, datasheet & technical proposal within 24 hours.

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Shielded Cable for Intrinsically Safe Computers

Shielded Cable for Computers