執(zhí)行標(biāo)準(zhǔn)Executive standard

本產(chǎn)品按照GB/9330、GB/T19666標(biāo)準(zhǔn)生產(chǎn)制造。

This product is manufactured in accordance with GB/9330 and GB/T19666 standards.

需要時(shí)，阻燃試驗(yàn)要求符合GB/T18380（IEC60332）的規(guī)定。

When necessary, the flame retardant test requirements shall meet the requirements of GB/T18380 (IEC60332).

需要時(shí)，耐火試驗(yàn)要求符合GB/R19216（IEC60331）的規(guī)定。

When necessary, the fire resistance test requirements shall meet the requirements of GB/R19216 (IEC60331).

需要時(shí)，燃燒性能等級(jí)（A、B1、B2、B3）符合GB31247的規(guī)定。

When necessary, the combustion performance level (A, B1, B2, B3) meets the requirements of GB31247.

需要時(shí)，火焰蔓延、熱釋放和產(chǎn)煙特性試驗(yàn)要求符合GB/T31248的規(guī)定。

When necessary, the flame spread, heat release and smoke generation characteristics test requirements meet the requirements of GB/T31248.

適用范圍Scope of application

本產(chǎn)品適用于交流額定電壓（U0/U）450/750V及一次啊的電器儀表、配電裝置的信號(hào)傳輸、控制和測(cè)量系統(tǒng)?？蓮V泛應(yīng)用于冶金、電力、石油、化工等各種領(lǐng)域。

This product is suitable for the signal transmission, control and measurement system of electrical instruments and power distribution devices with AC rated voltage (U0/U) 450/750V and one-time. It can be widely used in various fields such as metallurgy, electric power, petroleum and chemical industry.

使用特性Use characteristics

1、電纜額定電壓U0/U：450/750V

Rated cable voltage U0/U: 450/750V

U0-電纜設(shè)計(jì)用的導(dǎo)體對(duì)地域金屬屏蔽之間的額定工頻電壓；

U0-The rated power frequency voltage between the conductor used in the cable design and the regional metal shield

U-電纜設(shè)計(jì)用的導(dǎo)體間的額定工頻電壓；

U- rated power frequency voltage between conductors used in cable design;

2、電纜正常運(yùn)行時(shí)導(dǎo)體很高工作溫度：交聯(lián)聚乙烯絕緣為90℃；聚氯乙烯絕緣為70℃。

The maximum working temperature of the conductor during the normal operation of the cable: 90°C for cross-linked polyethylene insulation; 70°C for polyvinyl chloride insulation.

3、電纜短路時(shí)導(dǎo)體很高溫度：交聯(lián)聚乙烯絕緣為250℃；聚氯乙烯絕緣為160℃（短路很長(zhǎng)持續(xù)時(shí)間為5秒）。

The maximum temperature of the conductor when the cable is short-circuited: 250°C for cross-linked polyethylene insulation; 160°C for polyvinyl chloride insulation (the longest short-circuit duration is 5 seconds).

4、電纜安裝時(shí)很小彎曲半徑：

Minimum bending radius during cable installation：

有鎧裝或繞包屏蔽結(jié)構(gòu)的電纜應(yīng)不小于電纜外徑的12倍；

Cables with armored or wrapped shielding structure should not be less than 12 times the outer diameter of the cable;

其余結(jié)構(gòu)電纜應(yīng)不小于電纜外徑的6倍。

Other structural cables should not be less than 6 times the outer diameter of the cable.

5、電纜的很低允許敷設(shè)溫度：敷設(shè)時(shí)電纜溫度不低于0℃，環(huán)境溫度低于0℃時(shí)，應(yīng)對(duì)電纜進(jìn)行預(yù)熱。

The minimum allowable laying temperature of the cable: the temperature of the cable shall not be lower than 0℃ during laying, and the cable should be preheated when the ambient temperature is lower than 0℃.

6、電纜絕緣電阻：很高額定溫度時(shí)。體積電阻率r不低于1012Ω.cm；絕緣電阻常數(shù)Ki不小于36.7MΩ.km。Cable insulation resistance: at the highest rated temperature. The volume resistivity r is not less than 1012Ω.cm; the insulation resistance constant Ki is not less than 36.7MΩ.km.

主要實(shí)驗(yàn)項(xiàng)目及指標(biāo)Main experimental items and indicators

1、20℃時(shí)導(dǎo)電線芯很大直流電阻

Maximum DC resistance of conductive core at 20℃

2、交流電壓試驗(yàn)：A.C voltage test

額定電壓450/750V成品電纜應(yīng)能經(jīng)受工頻3000V電壓試驗(yàn)5min不擊穿。

The finished cable with rated voltage of 450/750V should be able to withstａnd the power frequency 3000V voltage test for 5 minutes without breakdown.

電纜結(jié)構(gòu)圖Cable Drawing

1.導(dǎo)體conductor

2.交聯(lián)聚乙烯絕緣XLPE insulation

3.聚酯帶Polyester tape

4.銅帶繞包屏蔽Copper tape wrapped shield

5.內(nèi)襯層Inner lining

6.鎧裝層Armor layer

7.護(hù)套層Sheath