Power cables are the basic foundation of any electrical system. But yet, it can be confusing for the layman to understand what cables are available in the market and what their business requires. Wiring and cables aren’t a one-size-fits-all solution, and specific cables are used for different specialised purposes. In fact, there is a whole list of factors to take into consideration for proper power cable selection.
As much as you may be conversant with power cables, there may be certain things about electrical cables that may be new to you. So, if you’re new to procuring cables and wiring for your business, we’re here to share some tips and tricks to get you up to speed.
1. Aluminium can be a good substitute for copper as a material
Many people believe that copper is a way better conductor of electricity compared to aluminium. However, while copper does have its advantages when compared to other materials, the key factor is understanding what purpose you’re utilising the wires for. Many people think of copper as the best solution because of its conductivity – in fact, aluminium is only 61% as conductive as copper. However, aluminium can be utilised when a lighter or cheaper material is required.
2. New power cables might not last as long as expected
While cables are often made to be durable, most people hope to utilise their cable inventory for an extended period of time. Sometimes, it’s just a simple equation of wear and tear. Increased usage in hostile environments and weather conditions naturally means that a cable’s casing and capabilities would degrade over time.
Other common reasons include wires not being utilised for the purpose they are created for (not having a proper coating to withstand extended outdoor use) or because of a poor installation. Poor installations can come from a wide variety of reasons, such as using an improper cable length, utilising defective cables or even installing the wrong cable that can’t withstand the required current capacity.
3. Cable armour is not used mainly for physical protection
Many people might not know this, but the armour on your cable is not designed to protect the cable against physical impact. On the contrary, when a power cable is exposed to a form of physical stress, the possibility of the damaged cable arising from the impact is likely to be worsened by the armour. This is because cable armours used on cables are made of steel tape or steel wire, which increases tensile measure and is not for protection. It is mainly used to earth the wire and prevent unwanted and dangerous electric shocks if a wire is damaged.
While the extra layer does strengthen the wire slightly, that extra protection does not prevent a wire from being bent or broken easily. Thus, it is still key to treat your cables with care to ensure that you can prolong the time they can be put to use.
4. Cable armour cannot shield cables from moisture
It is a common misconception that the presence of cable armour makes it possible for power cables to be used in moist areas. However, it should be emphasised that the armour is not meant to protect the cable from water, which ends up degrading or even rusting the armour through an exposed wire over time.
Commonly referred to as galvanised steel wire armour, this is made to increase the functions of the wire and not to take any of its key strengths. This is because of the way the metal armour is designed to maximise flexibility
Conclusion
Keep in mind that an incorrect installation of cables can easily lead to accidents, which is why having basic knowledge about cable wires is essential. It is best to contact your local building inspector before carrying out any electrical installation project.
From marine armoured cables to control cables in Singapore, you can get some of the best cables and wires available from reliable manufacturers quickly and efficiently from Cable Source. For any inquiries or questions, you can get in contact with us, and we’ll help you find the right cable for your intended purpose.
