Fire safety issues

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sparrott4

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In the definitions section of Utah's Electricians Licensing Rules (http://www.dopl.utah.gov/laws/R156-55b.pdf ) section 102(1) it states

Electrical work does not include. . .
"cable-type wiring that does not pose a hazard from a shock or fire initiation standpoint as defined in the NEC. Wiring covered by the NEC that does not pose a hazard as described above includes class 2 wiring as defined in Article 725, Power-Limited circuits as defined in article 760 and wiring methods covered by Chapter 8. Other wiring, including wiring under 50 volts is subject to licensing requirements."

My questions are:

1. In non-code terms, what types of wiring/currents/applications does the NEC consider to "not pose a hazard from a shock or fire initiation standpoint"?

2. Do typical low voltage outdoor lighting systems fit into this category?

Thanks for your help.
 
sparrott4 said:
In the definitions section of Utah's Electricians Licensing Rules (http://www.dopl.utah.gov/laws/R156-55b.pdf ) section 102(1) it states

Electrical work does not include. . .
"cable-type wiring that does not pose a hazard from a shock or fire initiation standpoint as defined in the NEC. Wiring covered by the NEC that does not pose a hazard as described above includes class 2 wiring as defined in Article 725, Power-Limited circuits as defined in article 760 and wiring methods covered by Chapter 8. Other wiring, including wiring under 50 volts is subject to licensing requirements."

My questions are:

1. In non-code terms, what types of wiring/currents/applications does the NEC consider to "not pose a hazard from a shock or fire initiation standpoint"?

2. Do typical low voltage outdoor lighting systems fit into this category?

Thanks for your help.
Click to expand...
In plain english any circuit derived from a listed class 2 power supply or transformer, a class 3 PLFA circuit or communications circuit as outlined in chapter 8 do not pose shock or fire initiation hazards.
From what you describe, if the low voltage lighting system is powered by a class 2 supply it is off limits.
For wiring types and limitations look at 725.82 (G), 760.82 (A)(B)(C), 800.179 and 800.113 FPN
 
Low Voltage lighting

Low Voltage lighting

Can anyone shed some light on why most juristictions don't enforce permits and licensed contractors for installations of 12 -24 volt outdoor low voltage lighting systems in residences and commercial spaces. I have seen many pooly done installations from large charred marks under wood decks from staples, melted transformers from overload and poor O.L. protection, and melted cabeling in dry mulch beds. There needs to be a basic understanding of current flow to properly install these systems and too often there is obviously not.
 
bclumen said:
Can anyone shed some light on why most juristictions don't enforce permits and licensed contractors for installations of 12 -24 volt outdoor low voltage lighting systems in residences and commercial spaces. I have seen many pooly done installations from large charred marks under wood decks from staples, melted transformers from overload and poor O.L. protection, and melted cabeling in dry mulch beds. There needs to be a basic understanding of current flow to properly install these systems and too often there is obviously not.
Click to expand...

My guess would be that too many permits would be pulled and the building depts would have to hire more inspectors which means more money. The other guess is that most people feel that the 12-24 colt lighting is "simple" and anyone can do it. I know the instructions say that you should contact an electrican if you are not familier with electricity, but hey...who reads directions? :)

On a more serious side, home shows and even big box employees convince the average HO that you don't need any licensing or permits because "it plugs in".
 
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