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This category covers thermoplastic-insulated wire. It is rated 600 V, and certified in sizes 0.5 through 1000 sq mm copper, copper clad-aluminum, or aluminum.

The cable complies with all the requirements specified in UL 83, "Thermoplastic-insulated Wires and Cables," except that metric conductor sizes are used instead of AWG/kcmil sizes. This cable is for use in jurisdictions where metric conductor sizes are required or permitted.

Thermoplastic-insulated wire is designated as follows:

TW，THHN，THW，THW-2，THWN

TW — Indicates a single conductor having flame-retardant, moisture-resistant thermoplastic insulation. The wire is rated 60°C wet or dry.

THHN — Indicates a single conductor having flame-retardant and heat-resistant thermoplastic insulation with a jacket of extruded nylon or equivalent material. The wire is rated 90°C dry.

THW — Indicates a single conductor having flame-retardant, moisture- and heat-resistant thermoplastic insulation. The wire is rated 75°C wet or dry.

THW-2 — Same as THW except that the wire is rated 90°C wet or dry.

THHW — Indicates a single conductor having flame-retardant, moisture- and heat-resistant thermoplastic insulation. The wire is rated 90°C dry and 75°C wet.

THWN — Indicates a single conductor having flame-retardant, moisture- and heat-resistant thermoplastic insulation with a jacket of extruded nylon or equivalent material. The wire is rated 75°C wet or dry. THWN wire suitable for exposure to mineral oil and to liquid gasoline and gasoline vapors at ordinary ambient temperature is marked "GR I" if suitable for exposure to mineral oil at 60°C, or "GR II" if the compound is suitable for exposure to mineral oil at 75°C. Gasoline-resistant wire has been tested at 23°C when immersed in gasoline. It is considered inherently resistant to gasoline vapors within the limits of the temperature rating.

THWN-2 — Same as THWN except that the wire is rated 90°C wet or dry.

優(yōu)爾檢測(cè)華南檢測(cè)中心位于惠州市博羅縣石灣鎮(zhèn)滘源路滘嚇馮屋草州A棟和C棟，實(shí)驗(yàn)室和辦公用地：４５００平方米，總投資3000多萬(wàn)，擁有儀器設(shè)備５００余套。依據(jù)全球標(biāo)準(zhǔn)對(duì)電線電纜及橡塑化工材料在阻燃、耐火、低煙、無(wú)鹵、環(huán)保(RoHS, Reach,CP65等)、可靠性、物理、電氣特性方面的要求而建立，并在全球各大認(rèn)證機(jī)構(gòu)(UL、VDE、CCC、IMQ、 TUV-RHEINLAND、TUV-SUD、CSA、BASEC、KEMA、PSE、KC、TLC、ETC、GRL、ANAbbb、EAC)和廣大客戶的認(rèn)可和支持下，我們熱誠(chéng)服務(wù)于來(lái)自全球的10000多家終端、電線電纜及材料相關(guān)客戶。優(yōu)爾檢測(cè)華南檢測(cè)中心擁有全球特種燃燒測(cè)試中心，依全球各國(guó)標(biāo)準(zhǔn)建立，是中國(guó)電線電纜大型燃燒和耐火測(cè)試種類最全的實(shí)驗(yàn)室之一，僅燃燒測(cè)試場(chǎng)地就達(dá)1000多平方，檢測(cè)范圍如下：

1.適用于美國(guó)UL/加拿大CSA標(biāo)準(zhǔn)產(chǎn)品:如網(wǎng)線UL444/光纜UL1651/功率線UL13//火災(zāi)報(bào)警線UL1424/天線UL1655/電力電纜/控制電纜/中壓電纜/鎧裝電纜

對(duì)應(yīng)的大規(guī)模燃燒等級(jí):

(1)通用級(jí)，垂直托盤(pán)成束燃燒，如CM UL1685/FT4;

(2)美國(guó)UL R級(jí)UL1666，如CMR;美國(guó)UL P級(jí)NFPA262.如CMP;

(3)加拿大CSA FT4級(jí),FT6級(jí)大規(guī)模燃燒;

2.歐洲建筑法規(guī)強(qiáng)制指令CPR EN50399標(biāo)準(zhǔn),Bca,Cca,Dca,Eca等級(jí)全項(xiàng)測(cè)試，國(guó)標(biāo)GB 31247,GB/T31248,B1,B2,B3等級(jí)全項(xiàng)測(cè)試，如成束燃燒熱釋放量、煙密度等

3.國(guó)標(biāo)GB18380及IEC60332-3線纜成束燃燒 A F/R,A,B,C,D級(jí)成束燃燒

4.英國(guó)耐火線纜BS6387和BS8491,GB/T 19666(N,N J,NS)

5.美國(guó)VW-1/IEC60332-1-2/歐洲EN60332-1-2/中國(guó)GB/T18380.12單根垂直燃燒

6.橡塑材料UL94/國(guó)標(biāo)GB/T 8815阻燃測(cè)試

7.氧指數(shù)、鹵酸氣體、無(wú)鹵、針焰、灼熱絲、熱絲引燃、耐電起痕、耐氨、導(dǎo)電率/PH值等測(cè)試

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