Which lines an industrial site uses
Industrial cable has to survive cable trays, trenches, vibration, oil and maintenance crews. The power side is mostly 0.6/1 kV XLPE cable, armoured wherever it is buried or exposed to mechanical damage. The control side is multicore cable with numbered cores running between motor control centres, field devices and PLC panels. The instrumentation side carries low-level signals and needs a screen. Safety systems such as fire and gas detection and emergency shutdown may need circuit integrity. The table maps the usual sections to lines; the plant's cable specification and the project engineer decide the exact construction.
| Circuit or section | Cable line | Typical standard | Typical packing |
|---|---|---|---|
| Transformer to switchboard and MCC feeders | LV XLPE power cable, single core or multicore | IEC 60502-1 | Drums, length per run |
| Buried or tray-run motor and pump feeders | Armoured cable: STA, multicore SWA, AWA for AC single core | IEC 60502-1; BS 5467 (PVC) or BS 6724 (LSZH) | Steel-wood or steel drums |
| Motor control, interlocks, valve actuators | Control cable, 2x0.75 to 61x2.5, numbered cores | GB/T 9330 type; UL 1277 listing for US tray cable, confirmed per order | Drums; MOQ commonly 1,000 m |
| Transmitters, thermocouple extensions, analogue signals | Instrumentation cable, overall screened | KVVP type; EN 50288-7 / PAS 5308 types from a matched plant | Drums |
| Fire and gas, emergency shutdown, emergency lighting | Fire-resistant cable, LSZH sheath | IEC 60331, BS 6387 CWZ per test report | Drums or reels |
| Portable tools and equipment leads | Flexible cords; rubber H05RN-F / H07RN-F from a matched plant | IEC 60227 / IEC 60245 | Coils |
Reference constructions from a partner plant catalogue: steel tape armoured 0.6/1 kV Cu/XLPE/STA/PVC 4x35 mm2, about 30 mm overall and about 2,067 kg/km; control cable 450/750 V 7x1.5 mm2 Cu/PVC/PVC, maximum 13.2 mm overall and about 220 kg/km; overall screened instrumentation cable 4x1.5 mm2 with polyester tape and copper wire braid, maximum 12.2 mm and about 196 kg/km.
Standards and market notes
IEC 60502-1 allows steel tape and steel wire armour, and a specification that names one should not be quietly swapped for the other; see SWA vs STA armour. Single-core AC circuits use aluminium wire armour to avoid eddy currents in magnetic armour. UK and Middle East specifications often call BS 5467 or BS 6724, which the steel tape catalogue does not cover, so the desk matches a plant that makes steel wire armour to that standard. Individually screened pair instrumentation cable to EN 50288-7 or PAS 5308 types also needs a matched plant. Hazardous-area, mining and offshore requirements vary by jurisdiction and operator; confirm the cable requirements with the project engineer and the site's authority.
Special cable is the strength of Wuwei in Anhui, where above-scale wire and cable output exceeded 30 billion yuan in 2022 with more than 270 cable and supporting firms (China Daily, 2023). Yixing and Guanlin in Jiangsu cover the widest power and special range.
Drum planning for industrial sites
Industrial cable schedules list hundreds of short and medium circuits. Rather than one drum per circuit, the desk groups circuits of the same construction onto drums whose total length matches the cut list, and labels each drum with the circuit numbers it serves. Armoured drums are heavy, so drum weight follows the site's handling equipment. Control and instrumentation cables with many cores come on separate drums by core count. See packaging and drums.
Typical risks on industrial projects
- Undersized armoured cable. A UK warning described SWA cable whose effective cross-section was up to two sizes below the marking, with conductor and armour resistance out of limits. The desk compares conductor resistance per drum with IEC 60228.
- Wrong screen. Overall screen supplied where individually screened pairs were specified.
- Armour substitution. STA supplied against an SWA specification.
- Core numbering errors. Numbers that do not match the core count or the drawing.
How the desk runs an industrial order
The desk reads the cable specification and schedule, splits the order by construction, and shortlists partner plants that make each one, often an armoured power cable plant plus a control and instrumentation plant. The spec sheet fixes conductor class, screen type, armour form, core numbering and sheath print. Routine test records are collected per drum, and drums are inspected for length, print, diameter and end caps before loading. Send the cable schedule through the quote form; MOQ and lead time are confirmed in writing per MOQ and lead time.