Faktor Desain lan Faktor Keamanan Dijelasake

Ningbo Fangli Technology Co., Ltd. is a mechanical equipment manufacturer with nearly 30 years’ experiences of plastic pipe extrusion equipment, new environmental protection and new materials equipment. Since its establishment Fangli has been developed based on user’s demands. Through continuous improvement, independent R&D on the core technology and digestion & absorption of advanced technology and other means, we have developed PVC pipe extrusion line, PP-R pipe extrusion line, PE water supply / gas pipe extrusion line, which was recommended by the Chinese Ministry of Construction to replace imported products. We have gained the title of “First-class Brand in Zhejiang Province”.

Sumber: Asosiasi Pipa PVC Uni-Bell

Owah-owahan anyar kanggo standar AWWA duwe ngenalaken kebingungan kanggo konsep faktor desain (DF) lan faktor safety (SF).

Dokumen iki bakal njlentrehake hubungan kasebut antarane rong istilah dening:

• Referensi standar AWWA

• Nyedhiyani tabel conto

FAKTOR DESIGN DITETAPake

Standar AWWA C900, C905, lan C909 nemtokake "faktor desain" kaya ing ngisor iki:

"Faktor Desain (DF): Kebalikan saka faktor keamanan. Kang digunakake kanggo ngurangi basis desain hidrostatik (HDB) kanggo teka ing Hydrostatic Design Stress (HDS) saka kang Kelas Tekanan diitung.”

Nglebokake definisi iki dadi istilah sing luwih gampang:

Faktor Desain (DF): Invers saka faktor keamanan. DF digunakake kanggo ngurangi kaku bejat materi kanggo nyedhiyani a kaku desain aman.

Ing wangun persamaan:

Desain tekanan = Breaking stress x DF

utawa

HDS = HDB x DF

HUBUNGAN ANTARA FAKTOR DESIGN LAN FAKTOR KESELAMATAN

Definisi AWWA cetha banget: ing Faktor desain minangka kebalikan saka faktor safety.

Maneh ing wangun persamaan:

DF = 1/SF

utawa

SF = 1/DF

FAKTOR KESELAMATAN KONSISTEN 2.0

Saka rong kolom pungkasan ing tabel, iku jelas yen AWWA terus-terusan njaga faktor desain maksimal 0.50 (setara faktor keamanan minimal 2.0).

Uni-Bell nyaranake para insinyur njaga praktik nggunakake 2.0 minangka faktor safety minimal kanggo desain.

https://www.fangliextru.com/upvc-pvc-uh-pipe-extrusion-equipment.html

https://www.fangliextru.com/cpvc-pipe-extrusion-equipment.html