# Power and instrumentation cable

> Power, control and instrumentation cable on drums to NEC, UL or IEC as the project names, and what a cable request needs: conductors, voltage and length.

URL: https://jjprojectsok.com/products/electrical-instrumentation/cable-drum  
Español: https://jjprojectsok.com/es/products/electrical-instrumentation/cable-drum  
Updated: 2026-10-16

Cable supplied on drums for power distribution, control and instrument signals.

**In short:** Cable supplied on drums for power distribution, control and instrument signals. JJ Projects sources it to the specification the buyer names. Typical reference, standards: NEC (NFPA 70), UL, IEC, as the project names.

## Specification references

- Standards: NEC (NFPA 70), UL, IEC, as the project names
- Types: Power, control and instrumentation cable
- Data to give: Conductor size and count, voltage rating, insulation, jacket and drum length

> Typical references only. The governing specification is the one on your purchase order or datasheet.

## Typical uses

- Power distribution and motor feeders in plants and facilities
- Control circuits for starters, valves and packaged equipment
- Instrument signal cabling, for example 4-20 mA loops and field bus
- Cable for hazardous areas where the type is permitted by the area classification

## What to include in a request

A request with these details can be quoted without a round of questions. Send what you have and we will ask for the rest.

1. Cable type: power, control or instrumentation, and the standard the project names, such as NEC, UL or IEC
2. Conductor material and size, in AWG or kcmil, or mm squared, and the number of conductors, pairs or triads
3. Voltage rating, for example 600 V or 1 kV, at or above the system voltage
4. Insulation and jacket material, for example XLPE or PVC, and any flame-retardant or low-smoke requirement
5. Shielding and armor: individual and overall shields for instrumentation, armored or unarmored
6. Drum length and the length tolerance accepted, or the cut lengths required
7. Area classification, if it affects the cable type, and the documents required

[Request this item](https://jjprojectsok.com/request-a-quote?item=cable-drum)

## Questions

### What should I give to quote a power cable?

The conductor size and count, voltage rating, insulation and jacket, any armor, the standard it must meet and the length. If you have a cable schedule, send it with the request.

### Why is instrumentation cable shielded?

Instrument signals are low level and can pick up electrical noise from power cables. Twisted pairs with a shield reduce that interference. Your project specification says whether pairs, triads, individual shields or an overall shield are needed.

### Can cable be supplied in cut lengths instead of whole drums?

Cable can be requested in a stated length per drum or in cut lengths, depending on the cable and its source. State the drum length and the tolerance you accept in the request.

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## Guides

- [How to write an RFQ for industrial materials](https://jjprojectsok.com/knowledge/how-to-write-an-rfq): What an RFQ for industrial materials must specify: item, size, schedule or class, grade, standard, quantity, MTRs, inspection, packing and Incoterm.
- [Industrial procurement process, step by step](https://jjprojectsok.com/knowledge/industrial-procurement-process): How industrial procurement works, step by step: requirement, RFQ, bid tabulation, evaluation, award, PO, expediting, inspection, logistics and delivery.

[All electrical and instrumentation](https://jjprojectsok.com/products/electrical-instrumentation)