What is SPT wire? 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. Despite what many believe, insulation thickness is the only difference between SPT-1 and SPT-2 wire.

What does SPT wire stand for? 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.

What is the difference between SPT-1 and SPT-2 wire? The main difference between SPT-1 and SPT-2 electrical cord is in the thickness of insulation. SPT-1 gives you insulation that’s 0.03″ thick while SPT-2 is 0.045″. With 50% thicker insulation, SPT-2 is the Wire of choice for anything that is reaching close to 7-amps. Both SPT-1 and SPT-2 have the same maximum amperage.

Is SPT-1 wire hot or neutral? SPT has one conductor that has a rib. The ribbed conductor is neutral or white. The smooth conductor is hot or black.

What is SPT wire? – Related Questions

Can SPT-2 be used outside?

The longer the wire, the fewer amps it can carry, especially when it is longer than 150 feet. So if you want more amps, better opt for an SPT wire that is shorter 150 feet. And this is why the SPT-2 wire is ideal for outdoor light decorations.

What does SJOW stand for?

SJOW Cable Overview

SJOW stands for: S = Service Cord (600 Volts) J = Junior Service Cord (300 Volts) O = Oil Resistant outside jacket. W = CSA designation for weather/water resistance.

What does SPT 1 and SPT 2 mean?

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. Some folks will say that an SPT1 18awg wire is rated to carry a 7amp load and an SPT2 18awg wire is rated to carry a 10am load.

What is SJ cable?

Our SJ cable is a junior service power cable suitable for use as a power supply cable for small tools and appliances. The SJ cable is not water, oil, and solvent resistant.

What type of wire is used for Christmas lights?

Mini lights use 22 gauge wire. C7s and C9s generally use 18 gauge wire. Specialty bulbs have a large base that requires them to be on 12 gauge wire. Heavier wire is usually more expensive, but it can support many more amps.

What gauge wire is used for lamps?

Lamp and extension cords are usually 18 gauge, but if you’re not sure, strip the wire through the 14- or 16-gauge slot first.

Which wire is hot if both are clear?

If the plastic is clear, the wires in the neutral side are silver while those in the hot side are copper.

How do you tell which wire is hot if both are black?

Place the prong of the multimeter’s black wire on the bare metal on the end of a white wire, then read the meter. If you get a reading, the black wire is hot; if you don’t, the black wire isn’t hot.

Is ribbed wire hot or neutral?

The wire with the ribbing or stripe is the neutral wire, and the other one is hot. If you don’t see any markings on the wires, and the plug has two prongs of equal size, the cord is not polarized.

What is VW 1 rated?

VW-1 is a vertical flame rating that measures the resistance of insulating materials to the propagation of a fire. The test involves mounting lengths of wire vertically in a ventilated chamber and attempting to ignite the wire with a gas flame.

What are vampire plugs?

Vampire Plugs: The Unsung Heroes of the Christmas Light Industry. Vampire plugs, sometimes called Gilbert plugs, are comprised of a small plastic housing, a slide-on piece designed to hold in the wire, and either a male or female plug end.

What is the difference between SJ and SJO cord?

SJO having similar lettering in its name means the characteristics are going to be almost the same. The only significant difference for this cable would be the “J” or “Junior Service.” Junior Service as explained below is rated for hard service or 300 volts.

Can SJ cord be buried?

Since it is subject to physical damage, it is not allowed as a direct burial.

What is a 18 gauge wire?

It relates to the diameter of the wire. The more current capacity it can carry, the lower the AWG. A thicker 16AWG can carry 13 Amps, but a thinner 18AWG can only carry 10 Amps.

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 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.

Can so cord be used as permanent wiring?

SO cord can be permanently installed.

What is so cable used for?

SOOW is designed for extra hard usage on industrial equipment, heavy tools, motor and welding leads, power extensions, portable machinery, sound equipment, portable stage lights, marine dockside power and mining applications.

How are 3 wire Christmas lights wired?

There are three different wires. Each colored line represents a different wire. The blue line connects all the lights together in series and supplies power to the light bulbs. The yellow and red wires are both connected to the blue line on either side of the light bulbs.

What can you use 18 gauge wire for?

18-gauge are used for low-voltage lighting and lamp cords in 10 amps. 16-gauge are used for light-duty extension cords supporting 13 amps. 14-gauge are usedfor light fixtures, lamps, lighting circuits with 15 amps.

Which wire is positive when both are black?

If the multi-colored wire is black and red, the black wire is the negative wire, while the red one is positive. If both wires are black but one has a white stripe, the striped wire is negative, while the plain black wire is positive. Look in the owner manual to determine which wires are negative in a car.