
Power cables, also referred to as electrical cables or power cords, transmit electrical energy from a power source to a device or appliance. These cables are an essential part of the electrical infrastructure and are designed to carry electrical current from one point to another safely.

Power cables generally consist of one or more conductors, which are typically made of aluminum or copper . These conductors are encased in insulation material, which provides both electrical and mechanical protection. Commonly, this insulation is made from materials such as XLPE (cross-linked polyethylene), PVC (polyvinyl chloride), or rubber. 

In New Zealand, the durability and reliability of these power cables are critical in maintaining a robust electrical infrastructure capable of withstanding various environmental challenges, from vibrant urban centres to isolated rural areas. Choosing the right type of power cable in NZ is not only a compliance measure but also enhances the operational efficiency and safety of the entire power distribution system, ensuring stability and reducing the risk of failures.

## **Types of Power Cables**

The various types of power cables vary significantly in design and construction, each suited to different electrical applications and operating environments in New Zealand.

### **Single-core cables**

These cables have a single conductor encased in insulation. They are used for low-voltage applications and are commonly used in household appliances and electronic equipment or devices.

### **Multi-core cables**

[Multi-core control cables](https://nz.rs-online.com/web/c/cables-wires/electrical-power-industrial-cables/control-cable/) contain multiple conductors enclosed within a single cable sheath. They are designed for higher voltage applications and are widely used in construction sites, industrial settings, and power distribution systems. 

### **Armored cables**

These power cables feature a protective outer layer, often steel wire or tape, providing enhanced durability against mechanical stress, crushing, and abrasion. They are ideal for underground power distribution or harsh environments.

### **Flexible cables**

Flexible cables are designed to withstand frequent bending and movement, making them ideal for mobile equipment and dynamic industrial environments. This power cable type often features finely stranded conductors and durable yet flexible insulation materials such as rubber or flexible PVC.

### **High-voltage cables**

High-voltage cables are specially designed electrical cables that efficiently transmit large volumes of electricity over long distances. They are ideal for major power transmission networks, connecting power stations to substations and facilitating electricity distribution across extensive geographic areas.

## **Benefits of Power Cables**

Power cables offer numerous advantages in electrical systems, such as:

### **Efficient power transmission**

Power cables are engineered to transmit electrical power from the source to the destination efficiently.

### **Safety features**

Power cables are designed with insulation materials that provide electrical insulation and mechanical protection to [ensure the safety of users](https://nz.rs-online.com/web/content/discovery/ideas-and-advice/industrial-electrical-safety-guide) and equipment.

### **Versatility in applications**

Power cables are available in numerous types, configurations, and sizes, to accommodate different applications and power requirements.

### **Durability and reliability**

Power cables are built to withstand harsh conditions, including mechanical stress, abrasion, temperature variations, and moisture.

### **Flexibility and ease of installation**

Power cables are flexible, making installation easier across various environments.

### **Compatibility**

The standardised design of power cables allows them to function with typical power outlets and connect to a range of devices and appliances.

## **Applications of Electrical Cables**

Electrical cables bridge power and data across sectors and systems, driving operational continuity in countless ways:

- **Residential and commercial buildings:** Electrical cables in these settings distribute power to various outlets, lighting fixtures, and appliances, ensuring safe and efficient energy delivery for daily operations and comfort.
- **Industrial and manufacturing facilities:** High-capacity cables power heavy machinery, automation systems, and production lines, ensuring robust and uninterrupted power flow for optimal manufacturing output.
- **Construction sites:** Cables at construction sites provide temporary power to tools and machinery. They are typically rugged, flexible, and designed to withstand rough handling.
- **Information technology (IT) infrastructure:** IT systems rely on cables for data transmission and power supply. These include [Ethernet cables](https://nz.rs-online.com/web/c/cables-wires/networking-coaxial-cables/ethernet-cable/), [fibre optics for high-speed data transfer](https://nz.rs-online.com/web/content/discovery/ideas-and-advice/fibre-optic-cables-guide), and power cables for server rooms.
- **Telecommunications:** Cables transmit voice and data signals across vast distances. Coaxial and [fibre optic cables](https://nz.rs-online.com/web/c/cables-wires/networking-coaxial-cables/fibre-optic-cable/) deliver high-bandwidth communication, enabling clear calls, fast internet, and seamless streaming.
- **Renewable energy systems:** Cables connect solar panels, wind turbines, and other renewable sources to the grid, effectively transferring clean energy for distribution and storage.

## **Ready to Find the Perfect Power Cable?**

Buy power cables from reputable brands to ensure optimal quality, safety, and performance. [RS NZ](https://nz.rs-online.com/web/), a trusted supplier and distributor in New Zealand, offers an extensive range of power cables from industry-leading brands like [Lapp](https://nz.rs-online.com/web/b/lapp/), [ifm electronic](https://nz.rs-online.com/web/b/ifm-electronic/?displayMonolithBrandPage=true), [MICROWIRES](https://nz.rs-online.com/web/b/microwires/?displayMonolithBrandPage=true), and of course, our very own [RS PRO](https://nz.rs-online.com/web/content/m/rs-pro) brand. Browse our selection today to find robust and reliable solutions tailored to your specifications.

## **Ordering & Delivery Information for NZ**

Buying a power cable from RS NZ is simple—browse our extensive online catalogue, select the type of power cable you require, and add it to your basket. At checkout, enter your contact details and choose from our payment options to complete your purchase.

You can expect prompt and reliable delivery of our power cables across New Zealand. Whether you’re located in one of the main urban centres, a remote coastal community, or a quiet suburban neighbourhood, we ensure that your order is dispatched swiftly and arrives on time.

Please refer to our [delivery page](https://nz.rs-online.com/web/content/support/all-articles/delivery) for further details on delivery timeframes, costs, and options.



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