Power Cables for PWM AC Drives

Technically I guess you can use armoured cable instead of shielded and armoured cable. If you are doing just a test bench, temporary installation to verify that all other hardware work properly, I say go for it. If this is a permanent installation, then the real question should be will armoured cable meet your local code requirements for your installation? Well you should consult your local code to answer that question, a licensed electrician/engineer for your location will do. He/she will be able to determine the installation environment (industrial, commercial, residential, explosive atmosphere) to determine what requirements must be met for your installation. This forum is not such a licensed agent.

If your expert tells you something you don't understand then ask us, we may be able to translate for you. Now a possible reason why your engineer has said your cabling must be shielded and armoured is that the armour conduit you wish to use is non-conductive (PVC) and thus not a shield. Another possible reason would be that your armour is not properly matched to your environment.

Hello sanjaywan7,

can I use armoured cable instead of shilded armoured cable for connection from PWM AC drive to Motor?

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Your question hardly gave enough info' to allow me/us to know what the intended use is, so I have to answer by trying to 'cover all circumstances'?

I am guessing that this question may relate to the cost of the SAC "Shielded Armoured Cable", or that you already have enough AC "Armoured Cable" for your planned use?

Whatever the reason remember SAC (Shielded Armoured Cable) not only protects you and your installation, but others; the rest of the public from any accidents.

The SAC will also protect against other kinds of 'Electrical Interference' and 'Magnetic' or 'Electromagnetic Interference',(provided it is fitted correctly) at both the 'power-in' end, and the 'power to factory or machine' end. You are protected from any Interference which is directly related to other power sources around you, such as machines and power sockets nearby, and other 'outside power sources' which are not under your control.

I would always use SAC for outside use, to protect the cable and, the items connected to it, and yourself and, others which use it. Any cable or AC (Armoured Cable) would need only a tiny fault or a 'crush' damaged section, to possibly leave no protection from any accidents at all.

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It is ALWAYS Advisable to use the best specified cable where possible; AS A MINIMUM SPECIFICATION!

"Over specified fittings never killed anyone". The same cannot be said for "under specified" and/or "careless installations".

Do a 'professional quality job', and it is there for life.

Take care............And good luck