矿用防爆电机标准规范？英文双语对照

1、防爆电气设置装备部署（包含小型电器）、电缆的利用电压品级不得高于其标称电压品级，不然视为失爆。

2、隔爆外壳必须有清楚的防爆标记，煤安标记。有下列环境之一者为失爆。

3、隔爆设置装备部署隔爆腔直接领悟，去失防爆设置装备部署接线盒内隔爆绝缘座的。

5、防爆面应连结光洁、完备、需有防锈步伐。

4、外壳有裂纹、开焊、严峻变形的（变形长度凌驾50mm，且凸凹深度高于5mm者）。

6、防爆外壳表里有锈皮脱落（锈皮厚度达0.2mm及以上）的。

7、隔爆接合面布局参数要切合下述划定，不然视为失爆：

1）电气设置装备部署静止部门开爆接合面、利用杆和轴及带轴承转轴的防爆接合面与相应外壳容积对应的最大间隙必须切合表一的划定。快动门式的隔爆接合面的最小有用长度不小于25mm。

2）隔爆接合面的均匀粗糙度不得高于6.3μm。

3）防爆面无锈蚀（用棉纱擦后，仍有锈蚀斑痕者为锈蚀，而只留云影，不算锈蚀）。

4）用螺栓紧固的隔爆面：

①螺栓、弹簧垫圈必须齐备和紧固（紧固水平以将垫圈压平为及格）。

②弹簧垫圈的规格须与螺栓相顺应，（偶尔出现个体弹簧垫圈断裂或失去弹性时，查抄该处防爆间隙，若不超限，调换及格弹簧垫圈不为失爆)。

③螺栓或螺孔不克不及滑扣（但换同径长螺栓加螺母紧固者除外）。

④螺栓和不透螺孔的共同，紧固后螺栓和螺孔上剩余螺纹轴向长度应大于弹簧垫圈厚度的1.5倍；螺孔四周及底部厚度大于3mm。

⑤统一部位螺栓、螺母规格应同等，钢紧固螺栓拧入螺母的深度不克不及小于螺栓直径。

⑥沉孔钢紧固螺栓伸入螺孔长度应大于该螺栓的直径，铸铁、铜、铝件不小于螺栓直径的1.5倍；要是螺孔深度不敷，则必须上满孔。

⑦电动机接线盒盖不得上反。 二：. 防爆面：在划定长度及螺孔边沿至防爆面边沿的最短有用长度范畴内的缺陷不克不及凌驾如下划定：

1）对局部出现的直径不大于1mm；深度不大于2mm的砂眼，在40、25、15mm的隔爆面上，每平方厘米不凌驾2个。

2）偶尔发生的机器伤痕，其宽度与深度不大于0.5mm，剩余无伤隔爆面有用长度不小于划定长度2/3。

3）防爆面上禁绝涂油漆（发明有油漆时查抄该处间隙不凌驾划定，无油漆的接合面长度在接合面长度不小于划定长度2/3的不为失爆）。

1, explosion proof is electric setting equipment deploy (include small-sized electric equipment) , of cable use voltage grade not to get prep above its are nominal voltage grade, regard as otherwise break explode.

2, flameproof enclosure must have fair explosion proof number, coal brings number. The person that have one of following environments explodes to break.

3, lie between explode setting equipment deploy is lain between explode antrum is comprehended directly, go breaking explosion proof the setting is lain between inside box of equipment deploy wiring explode insulation.

5, explosion proof face should connect bright and clean, complete, need to have antirust pace.

4, crust has flaw, open solder, austere metabolic (be out of shape length overrides 50mm, and 5mm of prep above of protruding sunken deepness person) .

6, the outside and the inside of explosion proof crust has rubiginous skin to fall off (rubiginous skin ply amounts to 0.2mm and above) .

7, lie between explode parameter of joint side position wants suit undermentioned delimit, regard as otherwise break explode:

1) dormant branch opens deploy of electric setting equipment explode the face of joint face, explosion proof joint that uses lever and axis and rod of tape spool forward and the biggest gap with corresponding case corresponding volume must suit expresses the delimit of one. Use door formula quickly lie between explode the smallest useful length of joint face is not less than 25mm.

2) lie between explode the even surface roughness of joint face does not get prep above 6.3 μ M.

3) explosion proof face is not had rustily (after be being brushed with bombazine, the person that still have rustily spot mark is rustily, and leave Yun Ying only, do not calculate rustily) .

4) lie between with what bolt originallies closely explode face:

Gasket of ① bolt, bedspring must all ready and close solid (close solid level passes a test,examination,etc. with be planish of washerbed down the livestock) .

The norms beard of ② bedspring gasket and bolt photograph are complied with, (now and then when appearing to individual bedspring gasket ruptures or lose flexibility, clearance of explosion proof of confiscate the place, if do not exceed,be restricted, gasket of bedspring of exchange pass mark does not explode to break) .

③ bolt or screw cannot slip not as good as buckle (but change except of the person that with diameter long bolt adds nut to originally closely) .

④ bolt and what do not appear screw is collective, length of odd whorl axial should be more than 1.5 times of bedspring gasket ply on the bolt after close solid and screw; Screw all around reach bottom ply to be more than 3mm.

⑤ unites norms of place bolt, nut to answer coequal, steel tightens solid bolt to twist the deepness cannot of nut to be less than bolt diameter not as good as.

⑥ Chen Konggang tightens solid bolt to extend screw length to should be more than the diameter of this bolt, cast-iron, copper, aluminous 1.5 times what not be less than bolt diameter; If snail hole depth is spent not apply, must go up full aperture.

The box builds ⑦ electromotor wiring to must not go up instead. 2: . Explosion proof face: In delimit length and screw edge the blemish cannot inside the category of the shortest useful length to edge of explosion proof face overrides as follows not as good as delimit:

1) the diameter that ministry of play a game of chess appears is not more than 1mm; Deepness is not more than the sand holes of 2mm, in 40, 25, of 15mm lie between explode on the face, every square centimeter do not override 2.

2) sporadical machine bruise, its width and deepness are not more than 0.5mm, the rest is lain between without the injury explode useful length is not less than the face delimit length 2/3.

3) besmear of the prohibit completely on explosion proof face paints (clearance of the place of the confiscate when the invention has painting does not override delimit, the joint face length that does not have paint is not less than delimit to grow those who spend 2/3 not to explode to break in joint face length) .