Ukulungiswa nokubekwa kwethreyi Lekhebula

1. Ukubekwa kweiithreyi lekhebula

Ngemva kweubakakiifakiwe, ihlukaniswe izigabaithreyi lekhebulaizogxunyekwa kokulungisiweukusekela.Abahlukanisiweithreyi lekhebulaebekwe kubakaki ixhunywe ngendlela efanayo ne-5.2.4-4.

2,Ukulungiswa kwethreyi lekhebula

Ngemva kwe-anamathiselaingisigabaithreyi lekhebulaiqine, bese ibopha ipuleti lokucindezela eligxilile kumsele womsila wenkonjane ngaphandleithreyi lekhebula, bese ukhiya ngamabhawodi nekholomu eyinhloko,isiteshi se-strutori-unitrustilungiswe ngokuqinile, ukuze iithreyi lekhebulaayikhiqizi ukufuduka okuvundlile nokuma mpo.Njengoba kuboniswe kuMfanekiso 5.2.6-1.

Umfanekiso 5.2.6-1Ukulungiswa kwethreyi lekhebula

3,Ukulungiswa kanye nokubekwa kwelinye igobeizesekeli zethreyi lekhebula

(1)Ithreyi yekhebula egobile evundlile: xhuma inhlanganisela yethreyi yentambo yokugoba evundlile kuqala, bese uxhuma ubakaki kunxantathu ukuze ubambegobisa ithreyi lekhebula,bese ulungisa ithreyi yekhebula egobile evundlile kubakaki abangunxantathu ngepuleti lokucindezela eligxilile.Njengoba kuboniswe ku-Umfanekiso 5.2.6-2,5.2.6-3.

Umfanekiso 5.2.6-2Ithreyi yesitebhisi sekhebula                                                           Umfanekiso 5.2.6-3ithreyi yekhebula yohlobo lwesitebhisi

(2)I-Horizontal Tee Cross: qala ngokuxhuma isiphambano se-Tee esivundlile, bese uxhuma ubakaki kunxantathu ukuze ubambe ithreyi yekhebula egobile, bese ulungisa ithreyi yekhebula egobile evundlile kubakaki bakanxantathu ngepuleti lokucindezela elingaguquki.Njengoba kuboniswe kuMfanekiso 5.2.6 -4,5.2.6-5.

Umfanekiso 5.2.6-4Isitebhisi sekhebula                                                                          Umfanekiso 5.2.6-5ithreyi lekhebula lesitebhisi