What gauge is SPT-2 wire?

18 gauge
Both SPT-1 wire and SPT-2 wire are made using 18 gauge copper wire at their core. The difference is that SPT2 has a thicker insulation around the wire. Thereby making it slightly larger around than SPT1 and giving it the ability to carry a slightly higher electrical load.

What does SPT-2 wire mean?

SPT is an abbreviation for Stranded, Parallel, Thermoplastic, a designation found on most flat wire. This abbreviation is always followed by a number denoting the insulation thickness. SPT-2 wire is noticeably thicker, with a thickness of 0.045 inches.

What is the difference between SPT-1 and SPT-2 wires?

SPT-2 wire has 50% thicker insulation compared to the SPT-1 (. Because of the thicker insulation, SPT-2 wire is recommended for lower temperature applications where the thinner insulation might become brittle, which leads to cracking. On the flipside SPT-1 wire has thinner insulation thus making it more pliable.

What does SPT wire mean?

SPT: Stranded, Parallel, Thermoplastic This is always followed by a -1, -2 or -3, signifying insulation thickness for different applications. HPN: Heater, Parallel, Neoprene Required for heater-type application, such as irons, toasters, etc.

Can wire type SPT-2 be used outdoors?

What I have gathered from reading and searching so far is that zip cord (SPT-2 in particular) is not designed for outdoor use, will generally deteriorate in UV and perhaps from heat, and could crack in cold weather. And that it’s widely used anyway.

How many amps can a 18 gauge wire handle?

16 Amps
A conservative estimate for several feet of 18 gauge wire is 16 Amps. If you have only 12 gauge wire, the 18 gauge wire can handle more than 16 Amps.

What does SPT-1 and SPT-2 mean?

In a nutshell, the difference between SPT-1 and SPT-2 is the thickness of the insulation. SPT-1 is . 03” and SPT-2 is . 045”. That’s the only difference physically between the two ratings.

What is SJ cord?

SJ – Hard Service. Also called a “Junior Jacket,” this cable is rated for 300V service. Just like it sounds, the outer jacket of the cable is oil resistant. OO – The addition of the extra “O” means that the outer jacket and the insulation are both oil resistant. W – Weather and Water Resistant.

What does SJ cord stand for?

Hard Service
SJ – Hard Service. Also called a “Junior Jacket,” this cable is rated for 300V service. Just like it sounds, the outer jacket of the cable is oil resistant. OO – The addition of the extra “O” means that the outer jacket and the insulation are both oil resistant. W – Weather and Water Resistant.

Can you use lamp wire for Christmas lights?

Plain lamp wire is offered in two options, both use 18-guage copper. SPT-1 is typically used on Christmas lights, and has an insullation thickness of . 03 mm and is rated for 7amps. SPT-2 is usually reserved for year-round lighting, such as patio lights, and has an insullation thickness of .

What gauge wire are outdoor Christmas lights?

Larger tools like an air compressor would need a 10-gauge. For running Christmas lights, you want to make sure that any cord you use is rated for outdoor use. Pick a 16-gauge extension cord for light runs of 25 feet or less and go with a heavier duty 14-gauge cord for runs over 25 feet.

What kind of wire is a spt-2 made of?

These are usually made from 18/2 wire. When identifying the two numbers for the wire – 18/2 – the 18 refers to the size of the wire which in this case is 18 gauge. The 2 indicates that the wire is made with two wires. The SPT-2 wire has a thicker insulation.

How many Watts Does a spt-2 zip wire have?

SPT-2 is rated at 10 amps or 1100 watts and has insulation that is .045″ thick. Use this information to help you evaluate your power needs. Do not exceed the recommended amperage, this will absolutely cause the wire to fail and be a hazard.

Which is thicker SPT 1 or SPT 2?

The SPT-2 wire has a thicker insulation. Because of the thicker insulation with the SPT-2 wire the user can power more lights and decorations than the SPT-1 wire SPT-1 is rated a 7 amps or 770 watts and has an insulation thickness of.030″. SPT-2 is rated at 10 amps or 1100 watts and has insulation that is.045″ thick.

Can a SPT-1 Stringer wire hold up?

SPT-1 holds up very well in most conditions for seasonal Christmas lighting and decorating installations. Keep in mind that the wiring on Christmas lighting stringer sets is 22 gauge with relatively thin insulation. And even this thinner, less insulated wire holds up without a problem.

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