Page 261 - Electrician -1st Year - TT

TYo (Power) T«t£ 1.8.69 dLô] ùRôPo× LÚj§Vp
GXdh¬μVu (Electrician) þ ªuLm© AûUjRp Utßm Goj§e (Wiring
Installation and Earthing)

ùU«u úTôoÓ EPu á¥V MCB, DB Ñ®hf Utßm lëv Tôdv (Main
board with MCB DB Switch and fuse box)

úSôdLeLs: ClTôPj§u Ø¥®p ¿eLs ùT\ úYi¥V A±Ü §\uLs
• ùU«u Ñ®hf Utßm ªu T¡oUô] @lëv NmTkRlThP Ck§V ªu²Vp
JÝeÏØû\Ls, Ck§V ªuRW ¨oQV T¬kÕûWLs, úR£V ªu ®§Øû\Ls
B¡VYtû\ áßRp.

ùU«u Nlû[ûV ùTßRp Utßm à«ô£è à¬øJìŠð†ì Ñ®hf ¡VoLs W«ö
T¡okÕ A°jRp (Reception and distribution °PŠH†ì õ¬è ðô¬èèO™ HúRàm å¡P™
of main supply) : Nlû[ ÖûZÙm CPj§p ªð£¼ˆîŠðì «õ‡´‹.
ªuNôWm ùNpÛm JqùYôÚ
Wp ªð£¼ˆîŠð†ì õ¬è - à«ô£èŠ
ªuLPj§ÙPu CûQl× ùNnVlThP ðô¬èèœ (Hinged-type metal boards):
Ñ®hf @lëv ApXÕ JÚ Nodëh ©úWdLo
Þšõ¬èŠªð†® 2 I.e. î®ñ¡ àœ÷
CÚdL úYiÓm. ¨ëhWp JV¬p GkR ®R
îèóˆF™ ‘Wp' ªð£¼ˆîlThP Í®¬ò‚
§\l×m CÚdL áPôÕ. ùU«u Ñ®hf£p
ªè£‡ìî£è¾‹ «ê£î¬ùJ¡ «ð£¶
Es[ ¨ëhWp ªuLPj§ûV ùR°YôL
H¡¹ø‹ àœ÷ åò˜è¬÷ ï¡° 𣘬õJì
AûPVô[ªP úYiÓm. ÑXTUôL ùNuß
õNFò£ùî£è¾‹ Þ¼‚è «õ‡´‹. Üî¡
YWdá¥V CPj§p ùU«u Ñ®hf ¡VûW
Þ¬íŠ¹èœ ðŸø¬õŠ¹ ªêŒòŠð†´ Þ¼‚è
ùTôÚjR úYiÓm.
«õ‡´‹.
ùU«u Ñ®hfLs ñŸÁ‹ Ñ®hf ÞŠðô¬è IèŠ ð£¶è£Šð£è ²õŸP™
ðô¬èèœ (Main switches and switch boards):
«ð£™†´èœ, H÷‚°èœ Ü™ô¶ ñó
(𣘬õ: H.ä.âv. 732 - 1963 ñŸÁ‹
膯vèœ ªè£‡´ àÁFò£è
â¡.Þ.MF): ܬùˆ¶ ùU«u Ñ®hfèÀ‹
Þ¬í‚èŠð†´m êKò£è Gô ªu ެ특
EúXôLˆî£™ ÍPŠð†ìî£è«õ£ Ü™ô¶
ªêŒòŠð†´m ̆´‹ ãŸð£´‹
裊HìŠð†ìî£è«õ£ Þ¼‚L úYiÓ‹.
ªêŒòŠð†´‹ Þ¼‚è «õ‡´‹. à«ô£èŠ
«ñ½‹ Þ¬õ I¡ õöƒè™ ÞìˆFŸ° Iè
ðô¬èJ¡ õN«ò ªê™½‹ åò˜èÞdÏ ×x
ܼA™ ªð£¼ˆîŠð†´ Þ¼‚è «õ‡´‹.
ùNôÚ¡ Þ¼‚è «õ‡´‹.
Þì‹ (Location): Fø‰î ªõO Ñ®hf ðô¬èèœ,
ñ£ø£è ‘‘Wp" ªð£¼ˆîŠð†ì à«ô£èŠ
àô˜‰î ÞìˆF½‹ ñŸÁ‹ 裟«ø£†ì‹
ðô¬èèœ à«ô£è‹ Í®JìŠð†´ L
àœ÷ܬøèO½‹ ¬õ‚è «õ‡´‹.
à¼õ¬ñŠ¹ Þ¼‹¹ ê†ìˆF½‹
Ñ®hf úTôoÓLs õ£» Ü´Š¹èÀ‚° «ñ«ô£ ªð£¼ˆîŠð†´ Þ¼‚°‹.
Ü™ô¶ 迾‹ ÞìƒèÀ‚° «ñ«ô£
܈î¬èò ðô¬èèœ °PŠð£è
ûYdLdáPôÕ. êô¬õ ܬøèO™ 2.5 e†ì˜
à«ô£è‹ Í®»œ÷ CPò ެ특
àòóˆFp ûYdL úYiÓm. °Oò™ ܬøèœ,
ñóŠðô¬èèœ, °¬ø‰î
èNõ¬øèœ ñŸÁ‹ ê¬ñò™ ܬøèœ «ð£¡ø
I¡ù¿ˆîˆF™ Þ¬í‚èŠð†ì
ÞìƒèO«ô£ å¼ «ð£¶‹ ¬õ‚èŠðì‚
Ñ®hf ¡VoLÞdÏ ªð£¼ˆîñ£ù¬õ
Ã죶.
B°‹.
å¼ «õ¬ô îM˜‚è º®ò£ñ™ Ñ®hf
G¬ôò£ù õ¬è à«ô£è ðô¬èèœ (Fixed-
úTôoÓLœ ªõŠð G¬ôò£™ èŠð´‹
type metal boards): Þšõ¬èJ™ å¼ "â™" õ®õ
ÞìˆF™ ܬñ‚è «ï˜‰î£™ Üî¡ ªõOŠ¹ø
ê†ì‹ Ü™ô¶ Þ¼‹¹ ê†ì‹ Þ¼‚°‹.
Í® ªõŠð G¬ô¬ò °ð¬õò£è¾‹, ªu
ܶ ²õŸP«ô£ Ü™ô¶ «î¬õŠð†ì£™
õìƒèœ ²ôðñ£è Þ¿‚èŠðì F¼è£E
î¬WJ™ ܬñ‰¶, ²õŸP¡ H®ñ£ùˆ«î£´
à«ô£è‚ °ö£Œèœ ãŸð¬õò£è¾‹ Þ¼‚è
ªð£¼ˆîŠð†®¼‚°‹. Þšõ¬è ðô¬è
«õ‡´‹.
241