防爆电缆卷筒

SZ系列产品在原有S系列电缆卷筒特性的基础上增加了全封闭滑环箱、接线盒，满足防爆环境（NEMA7,8 & 9）下的使用要求，符合I，C,D组以及E,FG组的第1,2类应用。直接驱动还是变速箱驱动取决于设备行程以及配套电缆的要求。

- 筒上缠绕好的接线连接碳刷到NEMA7~9级别的接线箱。 - 坚硬钢制外壳为经久耐用 - 单极滑环设计易于安装和替换

- 高品质的安全易更换设计应用在卷筒弹簧 - 导缆架等卷筒辅件可选配置 - 设备易安装

- 尺寸根据电缆长度和大小可调

防爆环境补充资料

Summary of Class I, II, III Hazardous Locations

CLASSES

GROUPS

1

I Gases, vapors, and liquids (Art. 501)

A: Acetylene 乙炔

B: Hydrogen, etc. 氢气

C: Ether, etc.乙醚

D: Hydrocarbons, fuels, solvents,

etc.烃；燃料； 溶剂

II Dusts

(Art. 502)

E: Metal dusts (conductive,* and Ignitable quantities of dust

explosive)金属粉尘

F: Carbon dusts (some are conductive,* and all are explosive）石墨粉尘

G: Flour, starch, grain, combustible plastic or chemical dust (explosive)面粉；淀粉；易燃

的塑料和化学粉尘

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DIVISIONS

2

Not normally present in an explosive concentration (but may accidentally

exist)

Normally explosive and

hazardous

Dust not normally

normally are or may be in suspended in an ignitable suspension, or conductive dust may be present

concentration (but may accidentally exist). Dust

laye