Katoloso ea Plastic Pipe: Tataiso ea Kholiso ea Thermal & Calculation 

Ts'oaetso ea polasetiki ea Gray Pipe e bua ka phetoho ea li-dimensional-haholo-holo e telele kapa ho fokotseha-e hlahang ho PVC e putsoa (Polyvinyl Chloride) le tsamaiso ea liphaephe tsa CPVC ka lebaka la ho fetoha ha mocheso. Ho utloisisa kholo ena ea mocheso ho bohlokoa bakeng sa ho thibela ho hloleha ha sebopeho, ho lutla ha kopanelo, le ho putlama ha lipeipi litsing tsa indasteri le tsa bolulo. Katoloso ea mela ea liphaephe tsa polasetiki e phahame haholo ho feta ea mefuta e meng ea tšepe, e hlokang lipalo tse nepahetseng le ho kengoa ts'ebetsong ea li-loops tse atolositsoeng, li-offsets, kapa manonyeletso a fetohang. Tataiso ena e fana ka lintlha tsa fisiks ka lebaka la katoloso ea mocheso, e fana ka mekhoa e nepahetseng ea lipalo, 'me e fana ka mekhoa e metle ea ho laola metsamao ea liphaephe tsa polasetiki tse putsoa ho netefatsa ts'epo le polokeho ea nako e telele.

Ho Utloisisa Katoloso ea Mocheso ka Liphaephe tsa Plastiki tsa Gray

Katoloso ea mocheso ke thepa ea tlhaho ea tlhaho ho lisebelisoa tsohle, empa e phatlalatsoa ka ho khetheha ho li-thermoplastics tse kang PVC le CPVC, tse atisang ho etsoa ka bohlooho bakeng sa lisebelisoa tsa indasteri, tsa motlakase le tsa lipeipi. Ha li pepesehile mocheso, liketane tsa polymer ka har'a polasetiki li fumana matla a kinetic 'me li tsoela pele ho arohana, li etsa hore thepa e atolohe. Ka lehlakoreng le leng, ho pholisa ho baka tšitiso.

Maemong a boenjiniere, ho iphapanyetsa katoloso ea polasetiki ea phala e bohlooho e ka lebisa ho hloleheng ha tsamaiso ea likoluoa. Ho fapana le tšepe kapa koporo, tse nang le li-coefficients tse batlang li le tlase tsa katoloso ea mocheso, liphaephe tsa polasetiki li ka lelefala ka lisenthimithara tse 'maloa ho feta lebelo le tloaelehileng la maoto a 100 haeba li ka ba le liphetoho tse kholo tsa mocheso. Motsamao ona o hlahisa khatello e matla ea ka hare. Haeba tsamaiso ea liphaephe e tsitsitse ka thata ntle le tumello bakeng sa motsamao ona, khatello ea kelello e fetisetsa ho li-fittings, liankora le marako a liphaephe ka botsona, hangata ho fella ka manonyeletso a petsohileng kapa liphaephe tse kobehileng.

Bakeng sa litsebi tsa kaho, tlhahiso le tsamaiso ea lits'ebeletso, ho lemoha hore PVC e putsoa le CPVC e itšoara ka tsela e fapaneng tlas'a mojaro oa mocheso ke mohato oa pele o lebisang moralo o matla oa tsamaiso. 'Mala "bohlooho" hangata o bontša mekhoa e khethehileng, e kang Schedule 80 PVC bakeng sa lisebelisoa tsa khatello kapa CPVC bakeng sa ho hanyetsa mocheso o phahameng, empa molao-motheo oa matla a mocheso o lula o tsitsitse ho pholletsa le mefuta ena.

Hobaneng ha Grey PVC le CPVC li Atoloha ho Feta Metal

Sebopeho sa limolek'hule tsa li-polymers se lumella ho fetoha ha maemo le ho sisinyeha ho hoholo ha ho bapisoa le sebopeho sa crystalline lattice ea tšepe. Sena se fella ka Coefficient e phahameng ea Linear Thermal Expansion (CLTE). Mohlala, ha tšepe e ntse e hola hanyane tlasa maemo a tloaelehileng a ts'ebetso, liphaephe tsa polasetiki tse bohlooho li ka hola ho fihla ho makhetlo a mahlano ho isa ho a supileng ho feta tšepe bakeng sa phapang e tšoanang ea mocheso. Phapang ena e hloka mokhoa o fapaneng oa ho tšehetsa le ho tiisa maano.

• Polymer Chain Mobility: Mocheso o eketsa ho sisinyeha ha liketane tsa polymer, ho eketsa sebaka se pakeng tsa tsona.
• Modulus e tlase ea Elasticity: Lipolasetiki ha li thata ho feta litšepe, ho bolelang hore li holofala habonolo ha li le tlas'a khatello ea maikutlo, e leng se etsang hore li senyehe habonolo haeba katoloso e ka thibeloa.
• Sensitivity ea Mocheso: Phetoho ea ho tloha ho likhalase ho ea libakeng tsa rabara ka polasetiki e etsahala ka mocheso o tlase ho feta lintlha tse qhibilihisang tsa tšepe, e leng se etsang hore liphello tsa mocheso li bonahale mefuteng ea ts'ebetso ea letsatsi le letsatsi.

Mokhoa oa ho Bala Katoloso ea Pipe ea Plastic

Palo e nepahetseng e bohlokoa bakeng sa ho rala likarolo tsa matšeliso a katoloso. Mokhoa oa ho khetholla phetoho ea bolelele ($Delta L$) o otlolohile empa o hloka lintlha tse nepahetseng tse kentsoeng mabapi le thepa le maemo a tikoloho.

Foromo e tloaelehileng ke:

$Delta L = alpha makhetlo L makhetlo a Delta T $

Moo:

• $ Delta L$ = Phetoho ka bolelele (katoloso kapa nyenyefatso)
• $ alpha$ = Coefficient ea katoloso ea mocheso (ho/in/°F kapa mm/mm/°C)
• $L$ = Bolelele ba pele ba phala
• $Delta T$ = Phetoho ea mocheso (Mocheso oa ho Eketsoa vs. Mocheso oa Ts'ebetso)

Li-Coefficients tse Tloaelehileng tsa Katoloso ea Liphaephe tse Hlooho

Mefuta e fapaneng ea liphaephe tsa polasetiki tse bohlooho li na le li-coefficients tse fapaneng tsa katoloso. Ho sebelisa coefficient e fosahetseng ho ka lebisa ho tlase ho boenjiniere ba sistimi. Ka tlase ke maemo a tloaelehileng a indasteri bakeng sa lisebelisoa tse tloaelehileng:

Tlhokomeliso: Kamehla sheba leqephe la data la moetsi le ikhethileng bakeng sa coefficient e nepahetseng, kaha libopeho li ka fapana hanyane lipakeng tsa bahlahisi.

Mohato ka Mohato Mohlala oa Palo

Nahana ka phaephe ea PVC e bohlooho-maoto a 100 e kentsoeng ho 70°F. Sistimi e tla sebetsa ka metsi a chesang a 140 ° F. Re hloka ho fumana hore na pipe e tla atolosoa hakae.

1. Fumana $Delta T$: $140°F – 70°F = 70°F$.
2. Khetha $alpha$: Sebelisa kakaretso ea boleng ba PVC, mohlala, $3.3 makhetlo a 10^{-5}$ in/in/°F.
3. Fetolela Bolelele ho Li-Inches: $100 mongolo{maoto} makhetlo a 12 mongolo{inches/foot} = 1200 mongolo{inches}$.
4. Sebelisa Foromo: $ Delta L = 0.000033 makhetlo a 1200 ka makhetlo a 70 $.
5. Bala: $Delta L = 2.772 mongolo{inchi}$.

Boemong bona, phala e tla lelefala ka hoo e ka bang lisenthimithara tse 2,8. Haeba mokhatlo ona o sa amohelehe, phala e tla koala kapa e robe liankora tsa eona.

Ho Laola Katoloso: Maano a Moralo le Mekhoa e Metle ka ho Fetisisa

Hang ha keketseho e ka bang teng e baloa, mohato o latelang ke ho e laola ka katleho. Ho na le mekhoa e 'maloa e netefalitsoeng ea boenjiniere ea ho monya motsamao oa mocheso lits'ebetsong tsa liphaephe tsa polasetiki tse putsoa. Khetho ea mokhoa o itšetlehile ka lithibelo tsa sebaka, bophara ba liphaephe, le khatello ea ho sebetsa.

1. Katoloso Loops

Loop ea ho atolosa ke karolo ea phala e bōpehileng joaloka U e kenngoa ka tsela e otlolohileng. Ha phala e ntse e atoloha, maoto a "U" a phunyeletsa ka hare, a amohela phetoho ea bolelele. Ena ke e 'ngoe ea mekhoa e ka tšeptjoang ka ho fetisisa bakeng sa nako e telele.

• Keletso ea Moralo: Bophara le botebo ba lupu li tlameha ho baloa ho latela modulus ea phala ea elasticity le ho kheloha ho lebelletsoeng.
• Tšehetso: Litšehetso tsa tataiso li lokela ho behoa ka mahlakoreng a mabeli a lupu ho etsa bonnete ba hore motsamao o lebisitsoe ho lupu, eseng ka mahlakoreng.

2. Liphetoho tsa Directional le Offsets

Ho kobeha ha tlhaho tsamaisong ea liphaephe, joalo ka likhato tse 90 tse sebelisetsoang ho potoloha litšitiso, li ka sebetsa joalo ka manonyeletso a ho atolosa. Tsena li tsejoa e le "li-expansion offsets." Ka ho arola hantle liankora le litataiso, ho tenyetseha ha setsoe ho monya kholo ea mocheso ea likarolo tse haufi tse otlolohileng tsa liphaephe.

Mokhoa ona o na le chelete e ngata kaha o sebelisa geometry e teng ho e-na le ho eketsa likarolo tse ling. Leha ho le joalo, e hloka tlhahlobo e hlokolosi ho netefatsa hore radius ea bend e lekane ho sebetsana le khatello ea maikutlo ntle le ho khathatsa thepa.

3. Katoloso Manonyeletso

Bakeng sa litsamaiso moo sebaka se lekanyelitsoeng le li-loops kapa li-offsets li ke keng tsa khoneha, li-joints tsa ho atolosa mechine li ka kenngoa. Lisebelisoa tsena li na le litiiso tse thellang kapa likonopo tse hatellang le ho atoloha ka phala.

• Molemo: Tharollo e tiileng bakeng sa libaka tse thata.
• Bothata: Tlhokahalo e phahameng ea tlhokomelo ka lebaka la likarolo tse tsamaeang le ho roaloa ha tiiso.
• Kopo: E loketse ho lokisa litsamaiso tse seng li ntse li le teng moo ho sa khoneheng ho kenya lipompo tsa loops.

Karolo ea Bohlokoa ea ho Ankora le Tataiso e Nepahetseng

Ho bala katoloso ha ho na thuso haeba phala e sa tšehetsoe hantle. Sisteme ea ts'ehetso e laela moo phala e tsamaya. Phoso e tloaelehileng ea ho kenya liphaephe tsa polasetiki tse putsoa ke ho li tšoara joaloka lipeipi tsa tšepe—ho li tiisa ka thata hohle. Sena se thibela motsamao oa tlhaho mme se baka khatello ea maikutlo.

Anchor Points vs. Tataiso e tšehetsang

Ho laola katoloso, baenjiniere ba sebelisa mefuta e 'meli ea litšehetso:

• Liankora: Tsena li lokisa phala sebakeng, ho thibela motsamao leha e le ofe. Ankora e arola tsamaiso ea liphaephe ka likarolo tse arohaneng. Katoloso e baloa ho tloha ntlheng ea ankora ho ea ka ntle.
• Batataisi: Tsena li lumella phala hore e thelle ka longitudinally (axially) empa e thibela ho tsamaea ka lehlakoreng le leng. Litataiso li etsa bonnete ba hore phala e atoloha ka tsela e otlolohileng ho ea ho loop ea ho atolosa kapa lenonyeletso.

Mokhoa o Molemo ka ho Fetisisa: Beha ankora qalong ea ho matha. Sebelisa litataiso ho latela likarolo tse otlolohileng ho boloka phala e tsitsitse. Lumella pheletso ea ho matha hore e phaphametse ka bolokolohi ho loop ea ho atolosa kapa lenonyeletso. Le ka mohla u se ke ua tiisa phala ka thata pakeng tsa lintlha tse peli tse tsitsitseng ntle le mochine oa ho atolosa lipakeng.

Khetho ea Clamp bakeng sa Liphaephe tse Hlooho

Ha u khetha li-clamps, nahana ka boima ba bokaholimo ba PVC / CPVC. Li-clamps tsa tšepe li ka phunya kapa tsa pshatla phaephe haeba li tiisitsoe ho feta tekano, haholo-holo ha polasetiki e kokobela mochesong o phahameng. Sebelisa li-clamps tse nang le rabara kapa li-EPDM liner ho tsamaisa khatello ka ho lekana le ho lumella ho thella hanyenyane moo ho hlokahalang.

Liphoso Tse Tloaelehileng ho Tšoara Katoloso ea Pipe ea Plastic

Esita le li-installer tse nang le phihlelo li ka hlokomoloha li-nuances tsa kholo ea mocheso ka polasetiki. Ho qoba maraba ana a tloaelehileng ho tiisa botšepehi ba tsamaiso le ho fokotsa litšenyehelo tsa tlhokomelo.

1. Ho iphapanyetsa Mocheso oa ho Kenya

Li-calculator tse ngata li nka hore ho kenngoa ho etsahala mocheso oa kamore (70 ° F). Leha ho le joalo, haeba liphaephe li kenngoa letsatsing le tobileng letsatsing le chesang, mocheso oa pele o ka ba 100 ° F kapa ho feta. Haeba tsamaiso e nka mokelikeli o batang, phala e tla fokotseha ho e-na le ho atolosa. Ho hloleha ho ikarabella bakeng sa lipotoloho tse peli tsa ho futhumatsa le ho pholisa ho ka lebisa ho hula ha manonyeletso nakong ea ho honyela.

2. Tšehetso e Feteletseng

Ho beha li-hangers tse thata ho thibela motsamao. Le hoja sebaka se nepahetseng sa ts'ehetso sea hlokahala ho thibela ho fokotseha, ts'ehetso e 'ngoe le e' ngoe pakeng tsa ankora le sebaka sa ho atolosa e lokela ho ba tataiso, eseng sekontiri se tsitsitseng. Ho thibela motsamao oa axial ho baka khatello e phahameng ea khatello e ka bakang buckling.

3. Mefuta e Fosahetseng ea Lintho

Ha se liphaephe tsohle tse bohlooho tse tšoanang. PVC e tloaelehileng, Schedule 80 PVC, le CPVC li na le thepa e fapaneng ea mocheso. Ho nka hore coefficient ea generic bakeng sa liphaephe tsohle tse bohlooho ho ka lebisa liphosong tsa lipalo. Kamehla netefatsa lintlha tsa thepa pele u etsa lipalo tsa katoloso.

4. Ho Hlokomoloha Khanyetso ea Letsatsi

Grey PVC e hanyetsana le ho senyeha ha UV ho feta PVC e tšoeu, empa ho pepesehela letsatsi le otlolohileng nako e telele ho ntse ho ka phahamisa mocheso oa holim'a phala ka holim'a mocheso oa moea o teng. "Molemo oa letsatsi" ona o ka eketsa $ Delta T $ ka tšohanyetso. Lisebelisoa tsa kantle li lokela ho nahana ka ho shading kapa ho sebelisa insulation ho fokotsa litlamorao tsa mocheso oa letsatsi.

Likopo tsa Indasteri le Menahano ea 'Nete ea Lefatše

Kutloisiso katoloso ea polasetiki ea phala e bohlooho e bohlokoa liindastering tse fapaneng. Lekala ka leng le na le litlhoko tse ikhethang mabapi le mefuta ea mocheso le litekanyetso tsa polokeho.

Indasteri Chemical Processing

Limeleng tsa lik'hemik'hale, liphaephe tse bohlooho tsa CPVC li atisa ho sebelisoa bakeng sa ho tsamaisa metsi a senyang. Litsamaiso tsena li ka ba le liphetoho tse potlakileng tsa mocheso nakong ea ts'ebetso ea batch. Li-loop tse atolositsoeng li tlameha ho etsoa ho sebetsana le mokhathala oa cyclic, kaha ho atolosoa khafetsa le ho honyela ho ka fokolisa thepa ha nako e ntse e ea.

Lisebelisoa tsa Motlakase

Grey PVC e sebelisoa haholo joalo ka kotopo ea motlakase. Le hoja liphaephe tsena li sa tsamaise maro, li na le ho fetoha ha mocheso sebakeng seo. Ka nako e telele ea ka ntle, ho hlokahala hore ho atolosoe manonyeletso ho thibela kotopo hore e se ke ea tsoa mabokoseng a mateano kapa ho petsoha ha likobe. Tataiso ea Khoutu ea Naha ea Motlakase (NEC) e sebetsana ka ho khetheha le lisebelisoa tsa katoloso bakeng sa likhoele tsa PVC tse pepesehileng liphetoho tsa mocheso.

Liphaephe tsa Bolulo le tsa Khoebo

Litsamaisong tsa kabo ea metsi a chesang, liphaephe tsa CPVC li atoloha haholo. Batho ba kenyang lipeipi ba tlameha ho etsa bonnete ba hore liphaephe tse kenang marakong kapa mabatong li na le sebaka se lekaneng sa ho tsamaea ntle le ho hohla lintho tsa meralo, tse ka bakang lerata ("creaking") le tšenyo ea abrasion nakong ea lilemo tsa ts'ebetso.

Tiisetso ea Boleng le Bonepe ba Tlhahiso

Ho tšepahala ha tsamaiso leha e le efe ea liphaephe ho qala ka boleng ba likarolo tsa eona. Le hoja tataiso ena e tsepamisitse maikutlo holim'a melao-motheo ea boenjiniere, botšepehi ba 'mele ba phala le likamano tsa eona ke tsa bohlokoa. Ho fapana ha botenya ba lebota, ho teteana ha thepa, kapa ho nepahala ha manonyeletso ho ka mpefatsa liphello tsa khatello ea mocheso.

Mona ke moo balekane ba ratang Handan shengtong faisestener phetha karolo ea bohlokoa tsamaisong e pharalletseng ea meralo ea tikoloho. E thehiloe ka 2018 Motseng oa Handan, Profinseng ea Hebei, setsi sa indasteri e potlakileng ea China, Handan Shengtong e sebetsa ka thata ho R&D le tlhahiso ea li-fasteners tse matla, tse nepahetseng haholo. Le hoja sepheo sa bona sa mantlha e le li-fasteners tsa kaho, mechini le liindasteri tsa motlakase, melaoana ea ho etsa lintho ka nepo eo ba e khomarelang e bonts'a boleng bo hlokahalang likarolong tsohle tsa indasteri.

Lits'ebetsong tsa liphaephe, li-clamp, li-brackets, le lisebelisoa tsa ts'ehetso tse ts'oereng liphaephe tse bohlooho li itšetlehile ka li-fasteners tsa boleng bo phahameng ho boloka boemo ba tsona tlas'a meroalo e matla. Bolt e hlephileng ka lebaka la boleng bo tlaase ba fastener e ka fetola tšehetso ea tataiso hore e be ankora e hlōlehileng, e lebisang ho sa lumellaneng le khatello ea maikutlo. Boitlamo ba Handan Shengtong ba "Boleng ba pele, bareki ba phahameng ka ho fetisisa" bo tiisa hore lisebelisoa tse tšehetsang tse sebelisoang mererong ena ea bohlokoa ea mekhoa ea motheo li finyella litekanyetso tse tiileng tsa ho tšoarella le ho nepahala. Boitseanape ba bona ba ho fana ka litharollo tse fapaneng bakeng sa makala a matla le a kaho bo totobatsa bohlokoa ba ho kopanya likarolo tsa mochini tse tšepahalang le liphaephe tse entsoeng hantle.

Lipotso tse atisang ho botsoa (FAQ)

Na PVC e putsoa e hola ho feta PVC e tšoeu?

Che, 'mala oa pigment ka boeona ha o fetole haholo coefficient ea katoloso ea mocheso. Ka bobeli PVC e putsoa le e tšoeu e na le litekanyetso tse tšoanang tsa katoloso. Leha ho le joalo, PVC ea bohlooho e atisa ho etsoa bakeng sa likopo tse fapaneng (mohlala, khatello ea motlakase kapa ea indasteri) e ka 'nang ea e-ba le botenya bo fapaneng ba marako kapa limaraka tsa thepa, empa boits'oaro ba mocheso oa polymer bo lula bo tsitsitse.

Ke hangata hakae ke lokelang ho kenya manonyeletso a ho atolosa ka pipe ea polasetiki e putsoa?

Ha ho sebaka se tsitsitseng; e itšetlehile ka phetoho ea mocheso le bophara ba pipe. Ka kakaretso, bakeng sa liphetoho tse kholo tsa mocheso, matšeliso a katoloso a hlokahala ka maoto a mang le a mang a 50 ho isa ho a 100. Baenjiniere ba tlameha ho bala katoloso e khethehileng bakeng sa lebelo ka leng ho fumana sebaka se nepahetseng.

Na ho kenya letsoho ho ka fokotsa ho atolosoa ha lipeipi tsa polasetiki?

Insulation ha e emise katoloso, empa e ka fokotsa sekhahla sa ho fetoha ha mocheso le ho fokotsa tšusumetso ea mocheso o kantle. Bakeng sa liphaephe tsa metsi a chesang, ho pata ho boloka mocheso ka hare, ho tsitsisa mocheso oa phala. Bakeng sa liphaephe tsa ka ntle, ho kenya letsoho ho sireletsa khahlanong le phaello ea letsatsi, ho fokotsa boholo ba $ Delta T $.

Ho etsahala'ng haeba ke sa ikarabelle bakeng sa katoloso?

Ho hloleha ho ikarabella bakeng sa ho atolosoa ho ka lebisa ho phunngoeng ha lipeipi, li-fittings tse robehileng, manonyeletso a lutlang, le tšenyo ea thepa e hokahaneng. Maemong a boima, phala e ka phunyeha, ea baka ho tima tsamaiso le likotsi tse ka 'nang tsa e-ba teng ho tsoa ho maro a lutlang kapa mehala ea motlakase e pepeneneng.

Na CPVC e betere ho feta PVC bakeng sa lits'ebetso tsa mocheso o phahameng?

E, CPVC (Chlorinated Polyvinyl Chloride) e na le mocheso o fokolang oa mocheso ho feta PVC e tloaelehileng, e etsang hore e tšoanelehe bakeng sa mekhoa ea metsi a chesang le ea indasteri ho fihlela ho 200 ° F (93 ° C). Leha ho le joalo, CPVC e boetse e na le coefficient e phahameng hanyane ea katoloso ea mocheso, ka hona, taolo ea katoloso e bohlokoa le ho feta.

Qetello le Mehato e Latelang

Ho laola katoloso ea polasetiki ea phala e bohlooho ha se taba ea boikhethelo - ke tlhokahalo ea mantlha bakeng sa ts'ebetso e bolokehileng le e sebetsang ea sistimi efe kapa efe ea liphaephe tsa polasetiki. Ka ho utloisisa coefficient e phahameng ea katoloso ea mocheso ho PVC le CPVC, ho etsa lipalo tse nepahetseng, le ho kenya ts'ebetsong maqheka a nepahetseng a moralo joaloka li-loops tsa ho atolosa le litšehetso tse tataisoang, lienjiniere le li-installer li ka thibela ho hlōleha ho theko e boima.

Lintlha tse ka sehloohong tse nkiloeng li kenyelletsa:

• Kamehla bala katoloso ho ipapisitsoe le coefficient ea lintho tse itseng le maemo a mocheso a mabe ka ho fetesisa.
• Sebelisa liankora le litataiso ho tsamaisa motsamao ho lihoete tse atolositsoeng kapa manonyeletso.
• Qoba ho lokisa liphaephe ka thata lipakeng tsa lintlha tse peli ntle le sebaka sa bolulo se atolositsoeng.
• Netefatsa hore lisebelisoa tse tšehetsang, ho kenyeletsoa li-fasteners le li-clamp, li kopana le litekanyetso tsa boleng bo holimo ho boloka botšepehi ba sistimi tlas'a meroalo e matla.

Bakeng sa merero e hlokang likarolo tse nepahetseng tse phahameng le litharollo tse ka tšeptjoang tsa indasteri, ho sebelisana le bahlahisi ba nang le phihlelo ke habohlokoa. Hore na o rala mohala o rarahaneng oa ts'ebetso ea lik'hemik'hale kapa sistimi e bonolo ea conduit ea motlakase, ho ela hloko lintlha ka bobeli moralong oa lipeipi le khetho ea likarolo li netefatsa bophelo bo bolelele le ts'ebetso.

Haeba u batla litharollo tsa matla a holimo, tse tiisang boemo bo holimo ho ts'ehetsa litšebeletso tsa hau tsa indasteri, nahana ka ho fihlela litsebi tse etelletsang boleng le ts'epahalo pele. Lekola lihlahisoa tse amanang le litharollo tsa tekheniki ho netefatsa hore projeke ea hau e kopana le maemo a holimo ka ho fetisisa a boenjiniere ba boenjiniere.