在工程設計(ji)(ji)中，常遇到廠際(ji)管道(dao)（Pipeline between the Plants or District）的(de)設計(ji)(ji)，不(bu)同(tong)的(de)國內外規范，設計(ji)(ji)要(yao)求可能不(bu)同(tong)。

  在GB 50160《石(shi)油(you)(you)(you)化(hua)(hua)工(gong)(gong)企業設計防火規范》中(zhong)，廠(chang)際管(guan)道指敷設在石(shi)油(you)(you)(you)化(hua)(hua)工(gong)(gong)企業、油(you)(you)(you)庫、油(you)(you)(you)氣(qi)碼頭等(deng)不同圍墻界區之間且通過公共區域、長度(du)小于等(deng)于30km的(de)輸油(you)(you)(you)輸氣(qi)管(guan)道。

  在GB/T 51359《石油(you)(you)(you)(you)化(hua)工(gong)廠際(ji)管(guan)道(dao)工(gong)程技術標準》規范(fan)中，廠際(ji)管(guan)道(dao)指石油(you)(you)(you)(you)化(hua)工(gong)及煤化(hua)工(gong)企業(ye)(ye)、石油(you)(you)(you)(you)庫、石油(you)(you)(you)(you)化(hua)工(gong)碼頭等(deng)相(xiang)互間(jian)(jian)的(de)輸(shu)送可燃氣體、液化(hua)烴和可燃液體管(guan)道(dao)（石油(you)(you)(you)(you)化(hua)工(gong)園區除外）。其特征是(shi)敷(fu)設(she)在石油(you)(you)(you)(you)化(hua)工(gong)及煤化(hua)工(gong)企業(ye)(ye)、石油(you)(you)(you)(you)庫、石油(you)(you)(you)(you)化(hua)工(gong)碼頭等(deng)圍(wei)墻或用地邊界線之間(jian)(jian)且通(tong)過公(gong)共區域，長度小于或等(deng)于30km。

  廠際管(guan)道(dao)(dao)(dao)的(de)特點是企業圍墻(qiang)或用(yong)地(di)邊界(jie)線之間(jian)(jian)、通過公共區(qu)(qu)域，長(chang)(chang)度(du)≤30km。廠際管(guan)道(dao)(dao)(dao)長(chang)(chang)度(du)限定在(zai)30km，考慮了(le)與長(chang)(chang)距離(li)輸(shu)油(you)管(guan)道(dao)(dao)(dao)的(de)兩切斷閥(fa)間(jian)(jian)距相(xiang)協(xie)調(diao)。一(yi)般情況下，長(chang)(chang)距離(li)輸(shu)送(song)油(you)氣(qi)管(guan)道(dao)(dao)(dao)長(chang)(chang)度(du)在(zai)50km以上，有中間(jian)(jian)泵站(zhan)或加(jia)壓站(zhan)等特征(zheng)，而廠際管(guan)道(dao)(dao)(dao)通常是多條管(guan)道(dao)(dao)(dao)并列敷設，無中間(jian)(jian)泵站(zhan)或加(jia)壓站(zhan)，這一(yi)長(chang)(chang)度(du)也基本涵蓋(gai)了(le)目(mu)前石油(you)化工企業不同圍墻(qiang)或用(yong)地(di)邊界(jie)之間(jian)(jian)的(de)油(you)氣(qi)管(guan)道(dao)(dao)(dao)長(chang)(chang)度(du)。廠際管(guan)道(dao)(dao)(dao)不屬于地(di)區(qu)(qu)輸(shu)油(you)（輸(shu)氣(qi)）管(guan)道(dao)(dao)(dao)，也不包括石油(you)化工園區(qu)(qu)內(nei)公用(yong)的(de)輸(shu)送(song)可燃氣(qi)體、液化烴和可燃液體的(de)管(guan)道(dao)(dao)(dao)。一(yi)般定義(yi)廠際管(guan)道(dao)(dao)(dao)為GC類。