Power, Line Cables and Extension Cords

Part Number	Description / PDF	Quantity
9719SW8808 Southwire Company	REPLCORD, 14/3 SJTW 9' BLACK SW	0
R112718845 Southwire Company	12/3 SJEOW 45'CORD GFCI RETRACT	29
2687SW0002 Southwire Company	CORD, 10/3 SJTW 25' YELLOW LE SW	15
9709SW8808 Southwire Company	REPLCORD, 16/3 SJTW 9' BLACK SW	0
2689SW0002 Southwire Company	CORD, 10/3 SJTW 100' YLW LE SW	200
E235 Southwire Company	50 14/3 CORD REEL POWER STATION	15
9703SW8808 Southwire Company	REPLCORD, 16/3 SJTW 3' BLACK SW	14
26020124-2 Southwire Company	25' CORD W/GFCI 120V/15A INLINE	15
2814 Southwire Company	12/3 2' SJTW RIGHT ANGLE PLUG	15
2688SW0002 Southwire Company	CORD, 10/3 SJTW 50' YELLOW LE SW	15
48208802SW Southwire Company	12/3 SJTW 50' CORD RETRACT REEL	15
26020008-6 Southwire Company	SHOCK SHIELD 15A INLINE GFCI	15
12260008 Southwire Company	2016/3 SJEOW COIL EXTNSION CORD	69
2816 Southwire Company	YJ 12/3 2' SJTW INLINE GFCI	0
48006SW Southwire Company	30 14/3 RETRACTABLE CORD REEL	0

Power, Line Cables and Extension Cords

1. Overview

Cable assemblies, power line cables, and extension cords are critical components for transmitting electrical power and signals across devices and systems. These products ensure safe, reliable connectivity in residential, commercial, and industrial applications. Their importance has grown with advancements in electronics, automation, and renewable energy systems, enabling efficient power distribution and data communication in modern infrastructure.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Power Line Cables	Fixed wiring for permanent installations, designed for high durability and compliance with electrical codes	Building electrical systems, industrial machinery, HVAC systems
Extension Cords	Flexible, portable cables with multiple outlets for temporary power access	Construction sites, outdoor equipment, home appliances
Pre-assembled Cable Assemblies	Custom-designed cables with connectors, shielding, and insulation tailored to specific applications	Medical devices, aerospace systems, data servers
Industrial Cable Assemblies	Heavy-duty cables resistant to abrasion, chemicals, and extreme temperatures	Factories, robotics, oil & gas operations

3. Structure and Components

A typical power cable assembly consists of:

Conductor: Copper or aluminum strands for electrical conductivity
Insulation: Thermoplastic or rubber layers to prevent leakage (e.g., PVC, XLPE)
Shielding: Braided copper or foil to reduce electromagnetic interference (EMI)
Jacket: Durable outer layer for mechanical protection (e.g., LSZH for low smoke emission)
Connectors: IEC, NEMA, or specialized interfaces (e.g., USB, HDMI for signal cables)

4. Key Technical Specifications

Parameter	Description	Importance
Conductor Size (AWG/mm )	Determines current-carrying capacity	Prevents overheating and voltage drop
Voltage Rating	Maximum operating voltage (e.g., 300V, 600V)	Ensures safe operation under electrical stress
Temperature Range	Operating limits (-40 C to +105 C)	Maintains performance in extreme environments
Current Capacity (Amps)	Depends on conductor cross-section and insulation	Prevents fire hazards and equipment damage
Shielding Effectiveness	Reduction of EMI/RFI interference (e.g., 60dB-100dB)	Ensures signal integrity in sensitive electronics
Flame Resistance	Compliance with standards like UL 94 or IEC 60332	Enhances safety in fire-prone environments

5. Application Fields

Key industries and equipment include:

Industrial Manufacturing: CNC machines, conveyor systems
Healthcare: MRI scanners, patient monitoring systems
Consumer Electronics: PCs, printers, home theaters
Renewable Energy: Solar inverters, wind turbine controllers
Data Centers: Server racks, UPS systems

6. Leading Manufacturers and Products

Manufacturer	Country	Representative Product
Belden Inc.	USA	Industrial Ethernet cables with Cat 6A shielding
L-com Global Connectivity	USA	Fiber optic cable assemblies for 10G networks
Belkin International	USA	Surge-protected extension cords with USB ports
Yazaki Corporation	Japan	Automotive power cable harnesses

7. Selection Guidelines

Key factors to consider:

Environmental Conditions: Temperature, moisture, exposure to chemicals or UV light
Electrical Requirements: Voltage, current, frequency
Mechanical Stress: Flexibility needs, bending radius, abrasion resistance
Regulatory Compliance: Certifications like UL, CE, RoHS
Cost vs. Longevity: Premium materials (e.g., silver-plated conductors) for critical applications

Example: For outdoor construction equipment, select a 14 AWG SJTW extension cord with UV-resistant PVC jacket and 600V rating.

8. Industry Trends

Emerging trends include:

Adoption of halogen-free, recyclable materials for environmental compliance
Integration of smart cables with built-in sensors for real-time monitoring
Development of high-frequency cable assemblies for 5G and IoT applications
Standardization of universal connectors (e.g., USB-C for power and data)
Increased demand for modular cable systems in data centers