THHN / THWN cable wire 

 

 

1. SCOPE

 

1.1 This specification describes single conductor THWN or THHN, a general purpose building wire insulated

with polyvinyl chloride (PVC) and covered with a tough protective sheath of nylon intended for lighting and power

circuits at 600 Volts or less, in residential, commercial and industrial buildings. The wire may be operated at 90°C

maximum continuous temperature in dry locations and 75°C in wet locations and is listed by Underwriters Laboratories

 

2. APPLICABLE STANDARDS

2.1 The following standards form a part of this specification to the extent specified herein:

2.1.1 Underwriters Laboratories Standard 83 for Thermoplastic Insulated Wires.

2.1.2 Underwriters Laboratories Standard 1063 for Machine-Tool Wires and Cables (Stranded items only) .

2.1.3 Underwriters Laboratories Standard 758 for 105°C Appliance Wiring Materials (Stranded items only).

2.1 .4 CSA Standard C22.2 No. 75 and Electrical Bulletin No. 1451 for Type T90 Nylon or TWN75.

2.1.5 Federal Specification J-C-30B.

 

3. CONDUCTORS

3.1 Conductors shall be solid , Class B or Class C stranded, annealed uncoated copper per UL Standards 83 or 1063.

 

4. INSULATION

4.1 Each conductor shall be insulated with PVC and sheathed with nylon complying with requirements of UL Standard

83 for Types THHN or THWN, UL Standard 1063 for Type MTW and CSA C22.2 No. 75 for T90 Nylon. In addition,

Types THWN or THHN shall comply with the optional Gasoline and Oil Resistant II rating of UL Standard 83. The

insulation on stranded sizes shall also comply with UL requ irements for 105°C Appliance Wiring Material.

4.2 The average thickness of PVC insulation, for a given conductor size, shall be as specified in UL Standard 83 for

Types THWN or THHN. The minimum thickness at any point, of the PVC insulation, shall be not less than 90% of

the specified average thickness. The minimum thickness at any point of the nylon sheath, shall be as specified in

UL Standard 83 for Types THWN or THHN. The PVC insulation shall be applied tightly to the conductor and shall

be free-stripping .

 

5. IDENTIFICATION

5.1 The wire shall be identified by surface marking indicating manufacturer's identification, conductor size and metal,

voltage rating, UL Symbol, type designations and optional ratings . The wire shall also be identified as C(UL) Type

T90 Nylon or TWN75, FT1 .

 

6. TESTS

6.1 Wire shall be tested in accordance with the requirements of UL Standard 83 for Types THWN or THHN wire and

for the optional Gasoline and Oil Resistant II listings; as Type MTW to UL Standard 1063 (stranded items); as

AWM to UL Standard 758 (stranded items); and as C(UL) Type T90 Nylon orTWN75.

 

 

 

Copper/PVC/Nylon UL83 THHN/THWN Electric Wire

 

PVC/Nylon (14-10 AWG) 600V THHN or THWN-2 Control Cable

Constructions:

Plain Annealed Flexible Copper Conductors / PVC Insulated / PVC Sheathed. 
300/500V

The cable is designed to be used as an interconnecting cable for measuring, controlling or regulation in control equipment for assembly and production lines, conveyors and for computer units.

Due to the flexibility of YY cable, electricians commonly use YY for linking fixed and mobile equipment. If protected correctly electricians have found that YY can be useful in outdoor projects – however it is recommended and most commonly used for indoor projects in dry or moist conditions.

Standards:

GB 9330-1988 plastic insulated control cables.

Other standards such as BS, DIN and ICEA upon request.

This product used as the wiring in devices of the power distributionunit, A.C. Rated voltage up to 450/750V.

 

Characteristic of use

1). The permissble long-term working temperature of the cable conductor: XLPE insulated is 90°C, PVC insulated is 70 °C. During the cable laying, the ambient temperature must be above 0 °C.

2). The permissible bending radius in cable laying and installing.

a). For unarmoured cable, it shall not be less than 6 times of external diameter of cable.

b). For armoured or copper tape screened cable, it shall not be less than 12 times of the external diameter of cable.

c). For the flexible cable with screen layers, it shall not be less than 6 times of the external diameter of cable.

 

The major technical Characteristies and requirements:

There are three types of conductive core: the first (A), the second (B) are suitable for fixed installation ( the first is solid conductor, the second is stranded conductor) and the third (R) is a flexible stranded conductor and applicable to the flexible cable that requires movement.

 

The structure of conductor and D.C. resistance:

 

The insulated thickness and resistance:

 

Certification: 

 

 

1. Export wooden drum, wooden iron drum and other export standard package

2. Each Drum 100m or depending on customized.

3. Then pack by plastic kitting bag or plastic film.

4. Fixed with plank or board.

Delivery Detail: 10 days and also depend on the quantity

 

Our service:

we are one of the biggest manufacture in china mainland. We will give you a perfect shopping experience . If you need visit our factory , we will meet you at the airport or train station.

Also we can offer other service 

Custom Merchandise:we can make cable as your need include the color ,size and so on.we also offer OEM .

Complete Course Tracking:we can offer you the service from the business begin to you get the cable and use it .

 

Company information:

Cable sample: we can offer the sample free .

Zhengzhou hongda cable Co., Ltd.
Established Year:1999
Registered capital of RMB:5,000,000
Factory Area:300,000m2

Main products:

Areial bundle cable ,XLPE insulated power cable ,PVC insulated power cable ,electrical wire ,bare aluminum conductor(AAC AAAC ACSR )and so on

Main export county:

USA Philippines Malaysia Indonesia Venezuela, Colombia  Mexico

Dominica  India  South  Africa  Zambia  Kenya and so on.

 

Some suggest for you to choose the cable wire:

1.>Try: Preferably used a cable wire head alternating bending by hand, if the cable wire soft feel, fatigue strength well, the plastic or rubber elasticity handle well and no cracks on the wire insulation is the superior product. Our Zhengzhou Hongda Cable Co., Ltd used the high-quality PVC material production of wire and cable with good flexibility, not easy to break, high temperature resistance, corrosion resistance, Oil resistant, quality assurance, safety to use.

 

2.>Price: The poor quality cable wire due to the low production cost, traders sale it often under the guise of cheap low-cost for sales attract to buyer. So if you are blind pursuit of low prices, it is likely to be in the trap of unscrupulous traders, buy the low-quality wire and cable, you may be happy when you payment, but when using it, you will can not be estimated by an accident of the loss because the poor quality cable wire. Our Zhengzhou Hongda Cable Co., Ltd promise for you that we are not compare the lower price than others, we just promise we will let you spend the same money to enjoy the highest quality products and services.

 

3.>Copper Quality: Qualified copper wire the copper core is purple, shiny, soft touch. Inferior copper wire the copper core is atropurpureus, partial yellow or Partial white, more impurities, poor mechanical strength, poor toughness, that is easy to be break, and there are often have broken wires phenomenon. Check it, you just put a head wire stripped 2cm, then use a piece of paper on a copper core rub a little bit, if there is a black substance on the white paper, described in copper core have impurities. Zhengzhou Hongda Cable Co., Ltd used oxygen-free copper content of 99.99%, the product performance better than China national standards, high purity, anti-aging, high electrical conductivity, low loss, superior current carrying capacity, quality assurance, safety to use.

 

4.>Look: to see whether have the quality system certification; to see whether have the company name, address, test chapter, date of manufacture; see whether have printed trademarks, specifications and voltage on the cable wire. It also can be depending on the cable wire nominal cross-sectional area,  the superior copper product it have a bright and a soft colors, otherwise it is defective.

p;toughness, that is easy to be break, and there are often have broken wires phenomenon. Check it, you just put a head wire stripped 2cm, then use a piece of paper on a copper core rub a little bit, if there is a black substance on the white paper, described in copper core have impurities. Zhengzhou Hongda Cable Co., Ltd used oxygen-free copper content of 99.99%, the product performance better than China national standards, high purity, anti-aging, high electrical conductivity, low loss, superior current carrying capacity, quality assurance, safety to use.

5.>Weighting: In the good quality cable wire, generally in the predetermined weight range. Like the single stranded of plastic insulated cross-sectional area of 1.5mm2  copper wire, the weight about 1.8kg ~ 1.9kg per 100m; 2.5mm2 single stranded of plastic insulated copper wire, the weight about 3kg ~ 3.1kg per 100m; 4.0mm2 single stranded of plastic insulated copper wire, each 100m weight about 4.4kg ~ 4.6kg. Poor quality of cable wire weight less than that, or the length not enough, or too much  impurities in copper core cable wire. Zhengzhou Hongda Cable Co., Ltd guaranted national standard for quality, you can rest assured to purchase.

 

 

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