Cables / Connectors

I’m looking to get some kit PAT tested and am getting some quotes, but everyone wants to know how many items are to be tested? If I have a power amp with an IEC mains lead, would that count as two tests or one?

If a single mic cable isn’t long enough but two plugged together will reach, should I let that worry me or can I go ahead and sleep easier at nights?

I recently acquired a Focusrite Control 2802 analogue mixer/DAW controller. There are numerous connections on the back, including three female DB25 interfaces...

Most of my connectors and cables were bought second-hand, but some are blemished and I wonder if you could give a little advice as to what would be the best way to clean the connectors?

I have a Nord Electro 4HP keyboard, which I’d like to run seamlessly through guitar pedals in real time and in stereo. The signal distorts quite badly at higher keyboard and pedal volumes. Can you suggest a device that would remedy this?