有的設計人員認(ren)為，只有可燃(ran)介(jie)質(zhi)管(guan)道才(cai)需要(yao)靜電(dian)(dian)接地，非(fei)可燃(ran)介(jie)質(zhi)（如儀表風(feng)、工廠風(feng)、氮氣等）管(guan)道不需要(yao)靜電(dian)(dian)接地，這是(shi)不正(zheng)確(que)的。

  起火、爆(bao)(bao)炸(zha)發生需(xu)要三個條件：存(cun)在(zai)可燃(ran)(ran)(ran)(ran)介質，可燃(ran)(ran)(ran)(ran)介質和氧(yang)氣接(jie)(jie)觸，存(cun)在(zai)足夠(gou)引(yin)(yin)燃(ran)(ran)(ran)(ran)可燃(ran)(ran)(ran)(ran)介質和氧(yang)氣混(hun)合(he)(he)物的(de)(de)火花。由靜(jing)(jing)電(dian)(dian)(dian)引(yin)(yin)發的(de)(de)火災(zai)或(huo)(huo)爆(bao)(bao)炸(zha)事故，一定是(shi)(shi)由于(yu)靜(jing)(jing)電(dian)(dian)(dian)放(fang)電(dian)(dian)(dian)產生電(dian)(dian)(dian)火花引(yin)(yin)燃(ran)(ran)(ran)(ran)或(huo)(huo)引(yin)(yin)爆(bao)(bao)泄(xie)漏到管道(dao)或(huo)(huo)設備(bei)外部的(de)(de)可燃(ran)(ran)(ran)(ran)氣體或(huo)(huo)可燃(ran)(ran)(ran)(ran)粉塵與氧(yang)氣的(de)(de)混(hun)合(he)(he)物而(er)產生的(de)(de)。只要存(cun)在(zai)可燃(ran)(ran)(ran)(ran)氣體或(huo)(huo)可燃(ran)(ran)(ran)(ran)粉塵集聚(ju)的(de)(de)區域，都存(cun)在(zai)因靜(jing)(jing)電(dian)(dian)(dian)放(fang)電(dian)(dian)(dian)或(huo)(huo)引(yin)(yin)發火災(zai)或(huo)(huo)爆(bao)(bao)炸(zha)的(de)(de)風險(xian)(xian)(xian)。判(pan)斷管道(dao)是(shi)(shi)否(fou)(fou)需(xu)要靜(jing)(jing)電(dian)(dian)(dian)接(jie)(jie)地(di)的(de)(de)依(yi)據(ju)，不是(shi)(shi)其內的(de)(de)介質是(shi)(shi)否(fou)(fou)可燃(ran)(ran)(ran)(ran)，而(er)是(shi)(shi)其是(shi)(shi)否(fou)(fou)位于(yu)火災(zai)和爆(bao)(bao)炸(zha)危險(xian)(xian)(xian)區域內。SH 3097和HG 20675中(zhong)有明確的(de)(de)規定，對爆(bao)(bao)炸(zha)和火災(zai)危險(xian)(xian)(xian)環境內可能產坐靜(jing)(jing)電(dian)(dian)(dian)危害的(de)(de)物體，應(ying)采取(qu)工(gong)業(ye)靜(jing)(jing)電(dian)(dian)(dian)接(jie)(jie)地(di)措施(shi)。

  有人認為，水(shui)(shui)是導(dao)電(dian)的，所以水(shui)(shui)管(guan)道、蒸(zheng)汽(qi)管(guan)道不需要接地(di)。事實(shi)上(shang)，蒸(zheng)汽(qi)不是電(dian)的良導(dao)體(ti)，水(shui)(shui)本身也不導(dao)電(dian)，導(dao)電(dian)的是存(cun)在(zai)導(dao)電(dian)離(li)子(zi)的水(shui)(shui)。而很多水(shui)(shui)，如鍋爐水(shui)(shui)、除氧水(shui)(shui)、蒸(zheng)汽(qi)冷(leng)凝液等都(dou)除去了(le)大部(bu)分(fen)導(dao)電(dian)離(li)子(zi)，其導(dao)電(dian)性能并不好。即使是循環(huan)水(shui)(shui)，為了(le)減少(shao)換(huan)熱(re)設備結垢(gou)，也是經過軟(ruan)化處(chu)理，脫除了(le)大部(bu)分(fen)的鈣鎂離(li)子(zi)。除非經過實(shi)驗證明工(gong)藝裝(zhuang)置(zhi)所用(yong)的水(shui)(shui)在(zai)管(guan)道內有良好的導(dao)電(dian)性，不能認為水(shui)(shui)是導(dao)電(dian)的而取(qu)消爆(bao)炸和火災危險區內蒸(zheng)汽(qi)和水(shui)(shui)管(guan)道的靜(jing)電(dian)接地(di)要求。