Re: Should I replace all BX cable?
It depends. How is the insulation? If it's brittle, you should make replacement a priority. Also, if you need to connect grounded devices, those circuits should be replaced. Any circuits to bathrooms or kitchens should be replaced and protected with GFIs. For those circuits that you aren't replacing yet, you could install AFI breakers, which may provide additional protection against fires started by arcing. Since bedroom circuits are now required to have AFI, it won't be wasted money. Probably other circuits, too, but I'm not fluent in the code.
Originally Posted by skintigh
Bad form, but not prohibited. If you can wire them so they are on a different circuit from the receptacles in the same room, you can achieve the goal of not being totally without a light source in the room when a breaker trips. Make sure that the wiring to the light is rated for the ampacity of the circuit. If the breaker is 20A, you'll need 12AWG wire, even though the lamp will never draw more than a few amps.
I thought about putting a few of the lights on the outlet circuit, but I recall hearing that is bad form. Yet running a second circuit for just 1 or 2 light bulbs seems wasteful.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.