I'm trying to gather some information for a friend, who is building some HID lights for a fishtank.
The ballast instructions give these guidelines:
Use a pulse start socket rated at 4kv
Use high temperature wire rated at 1.2kv
the socket comes prewired already, what I need to know, is what wire to use between the socket, and the ballast, mounted some unknown distance away (say 10ft max)
The hard part is finding a cable with internal wires rated at 1.2kv ... most seem to be rated at 300v.
From what I can tell the bulb operates at 130 volts and a little over 1a of current, so not a lot of power there, but what is unknown is how much power is used to pulse start the bulb. the cable needs three conductors; hot, neutral and ground.
when I try googling for high voltage cables, I get tons of pages for transmission lines rated at tens of thousands to hundreds of thousands of volts, but nothing much for something in the 1.2kv range.
any suggestions, is it even something to worry about? i mean, if the pulse start is very brief, will regular 300 volt rated vinyl (pvc) insulation withstand it?