側(ce)(ce)(ce)壓力(li)(li)，垂直作(zuo)用(yong)在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)導(dao)體上的(de)(de)壓力(li)(li)。主(zhu)要發(fa)生在(zai)(zai)牽(qian)引電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)時彎(wan)(wan)曲的(de)(de)內側(ce)(ce)(ce)部分，如(ru)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)線路在(zai)(zai)轉角處的(de)(de)輪(lun)滾、弧形滑板或海底電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)敷設時的(de)(de)入(ru)水槽處。另外，盤裝(zhuang)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)平放或用(yong)簡裝(zhuang)或圈裝(zhuang)也都存(cun)在(zai)(zai)側(ce)(ce)(ce)壓力(li)(li)。對(dui)于充油(you)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)，主(zhu)要考(kao)慮作(zuo)用(yong)在(zai)(zai)外護層(ceng)(ceng)上的(de)(de)側(ce)(ce)(ce)壓力(li)(li)不(bu)要超過(guo)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)允許抗壓強度。因為(wei)單芯充油(you)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)外護層(ceng)(ceng)有絕緣(yuan)(yuan)(yuan)要求(qiu)。因此在(zai)(zai)牽(qian)引過(guo)程中，除(chu)了防止外護層(ceng)(ceng)被(bei)刮傷擦破(po)外，還要避免在(zai)(zai)拐彎(wan)(wan)外出現過(guo)大的(de)(de)側(ce)(ce)(ce)壓力(li)(li)，以避免壓壞外護層(ceng)(ceng)而(er)影響絕緣(yuan)(yuan)(yuan)性能。從電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)構造(zao)來看,電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)側(ce)(ce)(ce)壓力(li)(li)(根(gen)據GB 50217- 94“電(dian)(dian)(dian)(dian)(dian)力(li)(li)工程電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)設計(ji)規范”),對(dui)分相統包電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)可取Pm= 2500N/m;其(qi)它擠塑絕緣(yuan)(yuan)(yuan)或自容式充油(you)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)取Pm= 3000N/m。也就是說采用(yong)上述方法計(ji)算的(de)(de)側(ce)(ce)(ce)壓力(li)(li),必須小(xiao)于標準規定的(de)(de)側(ce)(ce)(ce)壓力(li)(li),才(cai)是安全的(de)(de)。