And a pull rope if you leave one.
Type: Posts; User: GoldDigger
And a pull rope if you leave one.
In which case you still need to find out whether the dimmer connections are protected against harm from external voltages or need the protection of Class 2 wiring with isolation from other circuits....
A great reminder that the insulation on conventional wiring goes bad causing shorts long before the copper conductor or sheath melt.
And I addressed the general use of MI, not just the operating room case. I did not make that clear enough.
Green is go and red is stop (automotive model) OR
Green is safe (not running) and red is dangerous (running.)
Fire pump wiring comes to mind first.
The Bridge is what we would call a jumper wire or jumper block, depending on how it attaches.
Is is possible that the 6 to earth jumper is just to make sure that the control circuit does not drift...
But if the NEC requires a high degree of fire resistance for the circuit, you may be able to use wire in raceway, but you would then have to encase the raceway in 2" of concrete. :)
The OP is...
It is not made for your voltage standards. To use it as intended you would need to use a 1:1 isolation transformer to get 240V to N on the secondary with 120-0-120 on the primary. Otherwise you would...
It may be a European model.
230V 50Hz line to neutral is common there while 120-0-120 is not found at all.
The instructions not to swap phase and neutral could indicate either that the insulation...
That battle was with USW 363, since IBEW 363 did not exist then.
And after USW 363 lost some legal battles in 2009 over deals with employers to force Union selection, an actual IBEW local 363 was established in 2010. Two separate entities.
Only if the lighting control system allows you to reclassify their Class 2 system as Class 1 limited power and you use Chapter 3 wiring methods.
See 725.130 (A) 
The reclassification can...
Must have been those darned homeless folk with their off-grid solar systems.:angel:
A shared open neutral and a neutral to ground leakage fault can cause a fire even with all of the ungrounded conductors open. (Film in another thread)
1. if it is a communications/control cord or manufacturer's assembled interconnect cord, it may not be subject to any prohibitions.
2. If it is a manufactured power cord for the projector, some (MH...
We just call it MI here and use it where fire withstand is critical.
"You can't teach an old dog new tricks, but you can teach an old dog to teach a new dog old tricks."
Or, as George Bush famously stated on TV:
"Fool me once, shame on you. Fool me twice... (long pause) ...er, shame on you again."
If you only ground the post and keypad through a high resistance, the static shock current will be reduced. But if there is any line voltage wiring associated with the keypad the AHJ would probably...
No, but service (before main disconnect and OCPD) and non-service wires are not permitted in the same conduit or other raceway.
In this case the "supported" part is not critical but the "secured" part is. :)
(Bad American joke)
You would have to ask the manufacturer, since nobody knows what arc signatures they need.
I suppose you could do it with a broadband RF transmitter with high frequency amplitude and frequency...
Fortunately for the DIYer, the latest round of mini-splits come with precharged lines and compressor/evaporator/condenser plumbing. All you need to do is keep the connectors dry as you attach them...
In principle, it is as simple as buying a custom arc signature generator for each AFCI brand and model.
Since each variation (brand, model, firmware date) will have a different set of signatures,...