AWM UL 2468 Specification of Speaker Wire

Speaker wire is used to make the electrical connection between loudspeakers and audio amplifiers. modern Speaker wire consists of two electrical conductors individually insulated by plastic. Certain older designs also featured another pair of wires for a powered line to power an electromagnet in the loudspeaker before permanent magnets became economical to produce and use.The effect of Speaker wire upon the signal it carries has been a much-debated topic in the audiophile and high fidelity worlds. Speaker wire, like any other linear electrical component, has three parameters which determine its performance: resistance, capacitance, and inductance. If a perfect wire were possible, it would have no resistance, no capacitance, and no inductance. The shorter a wire is, the closer it comes to being perfect, as resistance decreases as length decreases in all conductors (except superconductors). Resistance is the property which has the most effect on speaker wire performance, whereas capacitative and inductive characteristics of speaker wire are insignificantly small relative to the loudspeaker itself. Larger conductors (smaller wire gauge) have smaller resistance. As long as speaker wire resistance is kept to less than 5% of the speaker's impedance, the conductor will be adequate for home use. Steranded speaker wire is more flexible than solid wire, and is suitable for movable equipment. Even with poor-quality wire, an audible degradation of sound may not exist. Many supposedly audible differences in speaker wire can be attributed to listener bias or the placebo effect. Below is the Specification commonly use for speaker. UL2468 22AWG 2F Cable.

SPECIFICATION OF APPLIANCE WIRING MATERIAL (AWM)

                                                                                                       

1.0           SCOPE

                For Internal Wiring of Electronic or Audio Appliances

2.0           TYPE AND RATING

2.1           Type                                       : AWM 2468 & AWM IA

2.2           Rating Temperature                : 80º C

2.3           Rated Voltage                          : 300 Volts

                                                                  

3.0           CONSTRUCTION

3.1           CONDUCTOR

3.1.1        Material                                  : Bare Annealed Copper Wire (SBR)

3.1.2        Diameter of Conductor           : 0.160mm ± 0.005mm

3.1.3        Construction                           : 22AWG or 17/0.16 mm       

3.2           INSULATION

3.2.1        Material                  : Polyvinyl Chloride (PVC)

3.2.2        Average Thickness  : 0.38mm

3.2.3        Min Thickness        : 0.33mm

3.2.4        Overall Diameter     : 1.70mm ± 0.15mm * 3.5mm ± 0.20mm

3.2.5        Colour                     : As per Request

4.0           PHYSYCAL PROPERTIES

4.1.1        Oven Aging                             : 168 hours at 113º C

                After Aging                             : Elongation                             : 65% of unaged

                                                                : Tensile Strength                    : 70% of unaged

4.1.2        Deformation Test   : 1 hour at 121º C

                After test                                : 50% of before

4.1.3        Cold Bend Test       : 1 hour at -10º C

                After test                                : Not show any surface Cracks

4.1.4        Flame Test              : VW-1 & FT-1 as UL & c(UL) request

4.1.5        Spark Test              : 4 KV

5.0           PACKING

                Length                                     : 610M

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email : Martin CT Loo

 XLPE - cross-linked polyethylene

XLPE is an abbreviated designation of “cross-linked polyethylene”. Polyethylene has a linear molecular structure as shown in A. Molecules of polyethylene not chemically bonded as shown in B are easily deformed at high temperature, while XLPE molecules bonded in a three dimensional network as shown in C and D, have strong resistance to deformation even at high temperature.

Cross linked polyethylene is produced from polyethylene under high pressure with organic peroxides as additives. The application of heat and pressure is used to effect the cross linking. This causes the individual molecular chains to link with one another which in turn causes the material to change from a thermoplastic to an elastic material.

An important advantage of XLPE as insulation for medium and high voltage cables is their low dielectric loss. The dielectric loss factor is about one decimal power lower than that of paper insulated cables and about two decimal powers lower than that of PVC-insulated cables. Since the dielectric constant is also more favourable, the mutual capacitance of XLPE cables is also lower, thus reducing the charging currents and earth-leakage currents in networks without the rigid star-point earthing.

 

“XLPE” Insulation Offers These Advantages:

·                  Outstanding physical and mechanical toughness

·                  Extremely low moisture absorption

·                  Excellent ozone resistance

·                  Strong resistance to chemicals fumes and gases

·                  Low SIC and power factor

·                  High impulsed strength

·                  High insulation resistance and dielectric strength

·                  Capability of carrying and terminating

·                  Easy to splicing and terminating

 

Below is commonly use UL Style for XLPE insulated hook up wire.

UL3386    105ºC　600V　XLPE INSULATED WIRE
Halogen Free

 

·                 Rated temperature:105ºC·                 

·               Rated voltage: 600v

·                 According to:UL subject 758, UL1581, CSA C22.2

·                 Solid or Stranded, Tinned or bare copper conductor 32~8AWG

·                 XLPE insulation

·                 Passes UL VW-1 & CSA FT1 Vertical flame test

·                 Uniform insulation thickness of wire to ensure easy stripping and cutting.

·                 RoHS Compliant.

·                 UL3386 wire can use for the Internal wiring of appliances where exposed to oil at a temperature not exceeding (60°C or 80°C, whichever is applicable).

   

Gauge(AWG)	Copper (mm)	Conductor OD (mm)	insulation thickness (mm)	wire O.D (mm)	Max Cond. resistance（Ω/kft ,20ºC）
26	7/0.16	0.48	0.76	2.10±0.1	45.2
24	11/0.16	0.61		2.25±0.1	29.3
22	17/0.16	0.76		2.35±0.1	16.7
20	21/0.178	0.94		2.55±0.1	10.5
18	16/0.254	1.16		2.80±0.1	6.52
16	26/0.254	1.49		3.10±0.1	4.18
14	41/0.254	1.87		3.77±0.1	2.62
12	65/0.254	2.36		4.14±0.1	1.65
10	105/0.254	3		5.20±0.1	1.04
8	119/0.3	4.25	1.14	6.90±0.2	0.653

 

UL3271 Specification

APPLIANCE WIRING MATERIAL

Subj.758               Section 3      Page 3271                              Issued:1972-08-02

                                                                                              Revised:2011-10-04

 Style 3271  Single conductor with extruded sulation.

Rating	125 deg C, 600 Vac, 750 Vdc, Horizontal flame.
Conductor	30 AWG - 1000 kcmil solid, stranded, or braided, tinned, bare or silver-plated  copper or solid or stranded coated high strength copper - minimum 90 percent conductivity.
Insulation	Extruded XLPE.
	Conductor size	Minimum average thickness	Minimum thickness at any point
	30-9 AWG	30 mils	27 mils
	8-2 AWG	45 mils	40 mils
	1-4/0 AWG	55 mils	50 mils
	213-500 kcmil	65 mils	58 mils
	501-1000 kcmil	80 mils	72 mils
	1001-2000 kcmil	95 mils	86 mils
Standard	Appliance Wiring Material UL 758.
Marking	General.
Use	For use as Motor Leads or Internal Wiring of appliances. Tags may indicate the following: 2500 volt peak - For Electronic Use Only.

Contact : CT Loo 

Pan - International Wire and Cable Sdn. Bhd. is a well known leader in custom wire and cable development, design, and manufacturing. Our large production capacity and complicated equipment gives us a flexibility to produce supreme product. In order to position ourselves to prepare for the future, we continuously make significant technology investments, keep pace with industry standards and acquire the most advanced manufacturing equipment. We provide custom solutions for your request in wire and cable requirements. Not only that our products are manufactured to the most rigid UL and CSA requirements, but we have the ability to produce economically proto lots of custom cable in a specific length at our facilities too.

Custom made cable and private-label options are our specialty. As a direct result of utilizing the highest quality materials, manufacturing methods, QA protocols, and testing methods, our bulk wire and cable is of extremely high reliability. We maintain an exclusive inventory of electronic and electrical wire and cable and can ship with fastest lead time possible. We also provide a wide range of value-added services such as: Coiled cables, Ring marking of insulation, Custom color of sheath, Braiding and Spiral copper shielding, Extrusion, Twisting, Custom Marking & Printing, as well as custom packaging to your precise requirements.

Contact : CT Loo 

Packing Method (Pan-International, Malaysia)

Rolling Length For UL Cable

Cable OD (mm)	Rolling Length
≤ 2.99	762m(2500ft) / roll
3.00 ~ 3.99	610m(2000ft) / roll
4.00 ~ 5.59	305m(1000ft) / roll
5.60 ~ 8.00	153m(500ft)   / roll
≥ 8.01	107m(350ft)   / roll

Rolling Length For Non-UL Cable

Cable OD (mm)	Rolling Length
≤ 2.99	700meters / roll
3.00 ~ 3.99	600meters / roll
4.00 ~ 5.59	400meters / roll
5.60 ~ 8.00	200meters / roll
≥ 8.01	100meters / roll

Above is packing standard of Pan-International.

Please feel free to contact : ctloo@pan-intl.com should you have any question.

Halogen Free Substitute

Halogen Free Substitution (UL Style)

PVC		Halogen Free
UL1571	=	UL3302
UL1061	=	UL10368
UL1007	=	UL3385
UL1015	=	UL3386
UL1430	=	UL3385
UL2725	=	UL21099
UL2547	=	UL21307
UL2468	=	UL21264

  

The above substitution is after studying the OD, Temperature, Voltage and thickness required by UL.


For more information, Please contact : ctloo@pan-intl.com

UL1185 Specification

Subj.758 Section 1  Page 1185  Issued:1959-05-01

Revised:2011-10-24

Style 1185  Single conductor using extruded non-integral jacket.

Rating	80 deg C, 300 Vac, Horizontal flame.
Conductor	30 AWG - 4/0 AWG, solid or stranded.

Insulation	PVC
	Conductor size	Minimum average thickness	Minimum thickness at any point
	30-16 AWG	15 mils	13 mils
	15-10 AWG	30 mils	27 mils
	9-8 AWG	45 mils	40 mils
	7-2 AWG	60 mils	54 mils
	1-4/0 AWG	80 mils	72 mils

Assembly	Insulated conductor, optional shield, required jacket, optional shield, optional jacket.
Shield	Optional.

Jacket	Extruded PVC.
	Conductor size	Minimum average thickness	Minimum thickness at any point
	30-16 AWG	15 mils	12 mils
	15-2 AWG	30 mils	24 mils
	1-4/0 AWG	45 mils	36 mils
	30-16 AWG	or lacquered braid

Outer Shield	Optional.
Outer Jacket	Optional. Extruded PVC, 15 mils minimum average thickness, 12 mils minimum thickness at any point.
Standard	Appliance Wiring Material UL 758.
Marking	General.
Use	Internal Wiring of Appliances and Electronic Equipment.

Contact : CT Loo