常用防爆類(lèi)型修理和檢驗(yàn)的技術(shù)要求要點(diǎn)（一）
隔爆型電氣設(shè)備的防爆安全原理是通過(guò)隔爆外殼從而實(shí)現(xiàn)防爆安全。在_防爆標(biāo)準(zhǔn)當(dāng)中，其定義為“隔爆外殼 d”。Flameproof explosion-proof electrical equipment safety principle is realized through the flameproof explosion-proof security enclosure. Among the international standards for explosion proof, which is defined as "explosion-proof enclosure d".
在隔爆型電氣設(shè)備中，隔爆外殼一般是由殼體﹑蓋﹑緊固件﹑以及穿越殼壁的操縱桿或轉(zhuǎn)軸等組成。作為隔爆設(shè)備的殼體與蓋大多都是較厚的材質(zhì)，同時(shí)在滿(mǎn)足相關(guān)標(biāo)準(zhǔn)規(guī)定之后，_能夠承受住在外殼內(nèi)部的爆炸時(shí)不會(huì)被損壞。同時(shí)如若承受住爆炸時(shí)產(chǎn)生的拉力不會(huì)對(duì)固定隔爆外殼的緊固件產(chǎn)生斷裂與拉伸變形的狀況，螺釘﹑螺母等緊固件__具備足夠的機(jī)械強(qiáng)度。
對(duì)于外殼上的_接合面或結(jié)構(gòu)間隙等問(wèn)題，應(yīng)_外殼內(nèi)部的可燃性混合物爆炸時(shí)產(chǎn)生火焰不會(huì)被傳到外殼外部，因?yàn)榇藢?duì)于接合面的寬度（L和L1值）﹑間隙（W）和表面粗糙度都_滿(mǎn)足防爆標(biāo)準(zhǔn)的規(guī)定。
In flameproof electrical equipment, explosion-proof enclosure is generally covered by the shell ﹑ ﹑ ﹑ fastener and through the shell wall of the joystick or the shaft and other components. As flameproof equipment are thicker shell and cover most of the material, while the provisions of relevant standards are met, you must be able to withstand internal explosion of the shell will not be damaged. Should the same time withstand the pull of the explosion will not produce proof shell fasteners fixed to crack and tensile deformation conditions, screws and other fasteners ﹑ nut must have sufficient mechanical strength.
For the case of any joints or structural gaps and other issues, should protect the shell exploded inside the combustible mixture to produce a flame will not be passed to the external shell, as this for the width of joints (L and L1 values) ﹑ gap (W ) and the surface roughness must meet explosion-proof standards.