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Low voltage wire/ in wall - Electrician Talk
2011年7月24日 · I am in a similar situation right now. We are installing some recessed linear LED lighting in a clients home and we are having a hard time finding low voltage cable that is rated for in wall. Here are the spec's I need: WIRE:-CLASS 2 (RESIDENTIAL, INDOOR, IN WALL, USED WITH LED LIGHTING) (UL RATED) -LOW VOLTAGE-600V, 90 DEG. RATED-12/2 GAUGE
High and low voltage in same conduit | Electrician Talk
2013年2月22日 · If you look at the exceptions to 725.54 if they control wires and are associated with the high voltage (120v) devices and controls, you are able to as long as the rating on the low voltage cable jacket meets the conditions below, you can. 725-54 Does does not address speaker wires. 725-54. Installation of Conductors and Equipment
high voltage/ low voltage separation - Electrician Talk
2010年7月7日 · I have decided to move that 15KV cable (it feeds 2 transfornmer, each 1000KVA)and run it about 6 meters away from low voltages cables and the 2000KVA stabiliser. The power here is not stable, we have this 2000KVA stabiliser operating on the low voltage side(400volts), and I think it is not a good idea to have it near or on top of 15KV feeders!
Low voltage wires for dimming - Electrician Talk
2018年11月7日 · Article 404.8(B) Voltage between devices does not apply. Remember its an AC switch with low voltage DC wires that are just being spliced through. Also a tip when cutting in switch boxes. Do not strip back the blue jacket covering the low voltage wires all the way back to the connector. Leave the blue jacket on and strip back 3-4 inches to make ...
Voltage on house coax cable - Electrician Talk
2011年10月17日 · Most cable modems operate around the 60hz frequency, if the cable service isn't properly grounded at the service entrance and there's anything on the line it's likely to knock out the modem. Keep in mind that the hard line cable has up to 120vac on it, to power the amplifiers. This voltage isn't supposed to hit any of the drops, but you never know.
Getting Legal in Florida. Help getting around experience...
2020年8月8日 · Hello all. I have been working without a license installing low voltage cable since 2004 when my business was incorporated. I am listed as computer repair / network installer in the category for my county business license as well.
Low Voltage Enclosure Divider - Electrician Talk
2020年2月15日 · The basic rule is that the power and control wiring runs in separate cabinets and for the installer this is easily done most of the time. But for the equipment builder starters still have low voltage coils and auxiliary contacts. We still need control power (120 VAC normally) and sensors reading voltage and current.
Running low voltage (48 volt) in cable tray - Electrician Talk
2017年2月10日 · I've been asked to help on a job where they will be running battery cables between racks on cable tray. Battery voltage is 48 VDC. Cable is class II tray cable, single conductor. Circuit protected at source (breaker) and feeds some network equipment. Single conductor cable, listed and UL Listed As: Central Office Power Cable, CSA AWM I B 105°C.
NEC 2017 - Low Voltage Flexible Cables - Electrician Talk
2019年5月31日 · The driver is at the canopy, so the cord run between the canopy and the fixture housing is low voltage wire. I’m thinking per NEC 411.5 and table 725.154, if the manufacturer can demonstrate the fixture cord is CL2P, then I should be ok. But I think this is a big if.
Low Voltage/ High Voltage - Electrician Talk
2008年7月9日 · Over 600, 1000, or 1500 volts, depending on location and type is considered "high voltage", while 480 volts should be considered "low voltage", in the big picture. Of course if you're working on a digital chip, 4 or 5 might be high, so context always matters.