Page 237 - Electrician -1st Year - TT

°®J¼Š¹ 膮ìˆF™ ðò¡ð´ˆîŠðìô£‹.
– è®ù óŠð˜ à¬øJìŠð†ì Ü™ô¶
H.M.C. à¬øJìŠð†ì Ü™ô¶ ñó„ê†ì
I¡ ެ특 º¬ø
– à«ô£è à¬óJ†ì I¡ ެ특 º¬ø

– °ö£Œ I¡ ެ특 º¬ø

i L¥] v¼p °ö£Œ I¡ ެ특 º¬ø
ii è®ù à«ô£èI™ô£ °ö£Œ I¡ ެ특
º¬ø
– «î‚° ñó ðœ÷‹ ñŸÁ‹ Í®ò I¡
ެ특 º¬ø
Permissible load in sub circuit and power circuit

¶¬í I¡ ²ŸÁèO¡ «õÁð†ì
õ¬èèœ (Sub-circuits-different types): ¶¬í
I¡²ŸÁèœ W›õ¼‹ Þó‡´ °¿‚èô£è
HK‚èŠðìô£‹.

– M÷‚° ñŸÁ‹ I¡MCP ¶¬í I¡ ²ŸÁ
Fig 4-™ å¼ M÷‚° Þó‡´ «õÁð†ì (Light and fan sub-circuit)
ÞìƒèO™ Þ¼‰¶ 膴Šð´ˆîŠð´õ¶
– Fø¡ ¶¬í I¡²ŸÁ (Power sub-circuit)
I¡ ެ특 F†ìˆF™ 裆ìŠ
ð†´œ÷¶. I¡ ެ특 ªêŒòŠ ºî¡¬ñ Ñ®hf‚°Š Hø°
ð†ì¾ì¡ õ£®‚¬èò£÷˜ I¡ ެ특 I¡«ù£†ìñ£ù¶ ðA˜¾ ðô¬è‚°
õ¬óð숬î I¡ ðEò£÷KìI¼‰¶ â´ˆ¶„ ªê™ôŠðì «õ‡´‹. M÷‚°
è‡ìPî™ «õ‡® ªðŸÁ‚ ªè£œõ£˜. ñŸÁ‹ Fø¡ I¡ ²ŸÁèÀ‚° îQˆîQò£ù
I¡ðA˜¾ ðô¬èèœ ðò¡ð´ˆîŠðì
Þ‰Fò îó G˜íò MFº¬øèœ, ñŸÁ‹
«õ‡´‹.
«îCò I¡«è£†ð£´èœ (B.I.S. Regulations,
and the N.E. code pertaining to wiring installations) M÷‚° ñŸÁ‹ I¡ MCP ¶¬í I¡
²ŸÁèœ (Light and fan sub-circuits): M÷‚°èœ
ªð£¶õ£è â‰î å¼ I¡ ެ특
G˜ñ£QŠ¹‹ Þ‰Fò I¡ê£ó ê†ì‹ 1910 ñŸÁ‹ I¡ MCPèœ ªð£¶õ£ù I¡ ²ŸP™
Þ¬í‚èŠðìô£‹. 嚪õ£¼ ¶¬í I¡
ñŸÁ‹ I¡ê£ó MFèœ 1956 «ð£¡øõŸP¡
²ŸÁ‹ M÷‚°èœ, MCPèœ ñŸÁ‹ 6
«î¬õè¬÷ G¬ø¾ ªêŒõî£è Þ¼‚è
Ý‹Hò˜ ꣂªè† AÜhùXhèO¡ 10
«õ‡´‹. «ñ½‹ ÜšõŠ«ð£¶ ãŸð´ˆîŠ
¹œOèO¡ ªñ£ˆîˆFŸ° Iè£ñ™
ð´‹ MFèœ ñˆFò Üóê£ƒè‹ Ü¶
ªè£‡®¼‚è «õ‡´‹. 嚪õ£¼ ¶¬í
ê‹ñ‰îñ£è ªè£´‚A¡ø MFº¬øè¬÷»‹
I¡²ŸP¡ e¶ ðÀ 800 õ£†²‚° ÜFèñ£è
è¬ìH®ˆF¼‚è «õ‡´‹.
Þ¼Šð¶ îM˜‚èŠðì «õ‡´‹.
I¡ ެ특 G˜ñ£QŠ¹èœ ê‹ñ‰îñ£ù MCPèÀ‚è£è îQò£è I¡²ŸÁ
Þ‰Fò îó 膴Šð£†´ (H.ä.âv) Þ¬í‚èŠð†ì£™ ܉î MCPèœ
MFº¬øèœ Cô W«ö ªè£´‚èŠð†´œ÷ù. â‡E‚¬è 10-‚° Iè£ñ™ Þ¼‚è «õ‡´‹.
ܬùˆ¶ H.ä.âv. MFº¬øèÀ‹ «îCò
TYo ¶¬íI¡ ²ŸÁèœ (Power sub-circuits):
I¡ ªî£°ŠHù£™ ðK‰¶¬ó‚èŠð´Aø¶.
嚪õ£¼ TYo I¡ ²ŸÁèO¡ e¶ ðÀ 3000
I¡ ެ특 G˜ñ£QŠ¹ ê‹ñ‰îñ£ù õ£†²‚° ÜFèñ£õ¬î îM˜‚è «õ‡´‹.
Þ‰Fò îó 膴Šð£†´ MFº¬øèœ â‰î Å›G¬ôJ½‹ ¶¬í I¡²ŸP¡ e¶‹
(B.I.S. regulations pertaining to wiring instalations) Þó‡´‚°‹ «ñŸð†ì AÜhùXhÓLs
JV¬e (Wiring): W«ö ªè£´‚èŠð†´œ÷ Þ¼‚è‚ Ã죶. TYo ¶¬í I¡²ŸP¡
ãî£õ¶ å¼ I¡ ެ특 º¬ø å¼ e¶ ðÀ 3000 õ£†²‚° ÜFèñ£è ªè£‡´

TYo : GXdh¬μVu (NSQF - Revised 2022) R.T. Ex.No. 1.7.63 217