jwelectric
Senior Member
- Location
- North Carolina
What is FTCN?
From the UL White Book
ENGINE GENERATORS FOR PORTABLE
USE (FTCN)
GENERAL
This category covers internal-combustion-engine-driven generators rated 15 kW or less, 250 V or less, which are provided only with receptacle outlets for the ac output circuits. The generators may incorporate alternating or direct-current generator sections for supplying energy to battery charging circuits.
When a portable generator is used to supply a building or structure wiring system:
1. The generator is considered a separately derived system in accordance with ANSI/NFPA 70, ??National Electrical Code?? (NEC).
2. The generator is intended to be connected through permanently installed Listed transfer equipment that switches all conductors other than the equipment grounding conductor.
3. The frame of a Listed generator is connected to the equipment grounding conductor and the grounded (neutral) conductor of the generator. When properly connected to a premises or structure wiring system, the portable generator will be connected to the premises or structure grounding electrode for its ground reference.
4. Portable generators used other than to power building or structure wiring systems are intended to be connected to ground if required by the NEC.
I have a building in my yard that only has a three wire feeder so I suppose should I decide to install another feeder to another building three wires is all I will need to install? I don't need to look at 250.32 of the current cycle of the NEC just because I already have one like this?I have an old 5kw portable where the owners manual shows a diagram and a picture or a 15R male plug with a jumper from ground to neutral to be used if a neutral is required if using the 240 volt receptacle. The Generac home generators have the "floating" neutral because they use a two pole switch.
And this means that there has not been any changes to either the listing requirements or the installation requirements for the past 8 or 9 years and even if there has been then the new requirements don't count?I found a Honda service bulletin on line dated August 2003. It suggests corrective action for removing the N-G bond when connected to premises wiring. See below:
Using the line of thought of the group here on this site all one would have to do to have a compliant installation is find something somewhere in the past that would have allowed the installation and use that information to make an installation today.
Hey I just found a document that allows the installation of tubes through floor joist for single strand conductors. Does this mean I can use this document to make the installation of Knob and Tube today?
Then why is everyone pulling up documents from years gone by to back something being done under the 2011 code installation.
I bet it is because no one likes change