7/24/2019 Electrical Extension Cord Enr 8 12 Mse

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Electrical ExtensionCord

Material Science Engineering

ManthanDave

Vaibhav Patel

HarshilMehta

DarshilGediya

Kushagra Ashara

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Contents

Electrical Extension Cord and itsuses.

Co!onents o" the !roduct.

Pro!erties o" aterial and reason "orchoosing it.

Manu"acturing techni#ues o" variousco!onents.

Alternate aterial that can be used.

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$hat %s Electrical Extension Cord&

An extension cord( power extender(or extension leadis a length o" )exibleelectrical !o*er cable +)ex, *ith a !lug on one

end and one or ore soc-ets on the other end+usually o" the sae ty!e as the !lug,.

%" the !lug and rece!tacle are o" dierent ty!es(the ter /ada!ter cord/ ay be used.

Extension cableis also used( but that has adistinct eaning "ro extension cord"or any!eo!le. Most extension cords range "ro around0 "eet to 12 "eet in length.

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Co!onents o" the !roduct.

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Co!onents

Extension Cord

3ixed Electrical Contacts

Coil 4eel Circular Electrical Contact Casing

Circular Electrical Contact

5!ring Coil $all Plug

5ide Casing

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Pro!erties o" aterial and reason

"or choosing it.

Extension Cord

Material 6 Co!!er *ires 7 (rubbecasing.

8se6 Allo*s )exible use o" electricalhard*are *ithin the household.

$hy6 Co!!er is conductor o" electricity

and have lo* theral ex!anssion( andis easily available9 and rubber is non:conductor o" electricity( so !rotect theuser "ro shoc-.

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Fixed Electrical Contacts

8se6 Conducts electricity "rothe co!!er *ires

Material 8sed6 Co!!er

Manu"acturing6 5heet sta!ed

7 bent

$hy6 Easily available and canbe easily given any sha!e.

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Coil Reel

8se6 4otates todis!ense the cord and!rovides s!ace "or thecord to *ra! around

Material 8sed6 Plastic

Manu"acturingProcess6 %n;ectionolded

$hy6

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Circular Electrical Contact Casing

8se6 Holds both circular

electrical contacts andloc-s the co!!er *iresonto the coil reel.

Material6 Plastic

Manu"acturing Process 6%n;ection olded

$hy6

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Circular Electrical Contact

8se 6 Conducts electricity "rothe co!!er *ires

Material6 Co!!er

Manu"acturing Process 6 5heet

sta!ed and bend

$hy6 Easily bended and available.

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Spring Coil

8se6 A!!lies torsional"orce to rotate thecoil reel and retractthe cord into the

casing

Material 6 Galvani=ed5teel

Manu"acturingProcess6 5ta!ed(cut 7 bent

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Wall Plug

8se6 Connectsthe extensioncord to electric

soc-ets

Material6 Co!!er

7 rubber casing

$hy6 5ae as inextension cord.

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Side Casing

8se6 encloses theextension cord( s!ringcoil( coil reel( and ostco!onents o" theretractable cord.

Material 6 Plastic

$hy6

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What Alternate Materials can beused?

?

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Co!!er can be re!laced *ith Aluinu as it is also goodconductor o" electricity( lighter and chea!er than

co!!er.

4ubber can be re!laced *ith thero!lastic elastoersas they are easily elted and extruded.

5teel can be re!laced by >ber rein"orced !olyers( theygive ore ductility( strength and is lighter than steel.

Plastic can be re!laced by 5hril-( a bio ins!ired aterial.%t is chea!( biodegradable( have strength o" aluinualloy( but is ;ust hal" the *eight. %t has all the !ro!erties

o" !lastic as derived "ro sil- and chitin+a aterial!resent in sil- s!ider,.

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THANK YOU!