Page 82 - Electrician -1st Year - TT
P. 82

úRôt\m Utßm ùSÚdLUô] CûQl×dLôL
                                                            Utßm CÝ®ûN  (tensile stress) Ïû\YôL
                                                            úRûYlTÓm CPeL[ô] Eh×\ YV¬e
                                                            úYûXL°p CqYûL CûQl×Ls
                                                            ùNnVlTÓ¡u\].














                                                            2 ª.ÁdÏ Ïû\YôL Es[Ytû\ £e¡s
                                                            LPj§L°p ©¬Ùm YûL CûQl×Ls
                                                            (Tap joints in single stranded conductors of diameter
                                                            2 mm or less)  :  CRu ®[dLj§uT¥ JÚ
                                                            LPj§«p JÚ Øû]ûV úSWôL ùNuß
                                                            ùLôi¥ÚdÏm LPj§ÙPu CûP«p
       úUÛm CqYûL CûQl×Ls Eh×\ Utßm                         CûQlTûR CÕ Ï±d¡\Õ.
       ùY°l×\ YV¬eÏL°p 4 ª.Á ApXÕ ARtÏ
                                                            ùTôÕYôL ¸úZ Es[ ùRôeÏm YûL
       úUp ®hPØs[ JÚ LPj§ TVuTÓjÕm
                                                            CûQl×Ls TVuTÓjRlTÓ¡u\].
       CPeL°Ûm ùNnVlTÓ¡\Õ.
                                                            • G°V (NôRôWQ ) YûL (Plain)
       ©¬hPô²Vô ‘Tee’ (‘T’) CûQl× (Britannia
       tee joint) : KYo ùah ûXuL°XõÚkÕ úNûY                 • H¬Vp YûL (Aerial)
       CûQl×dÏ (service connections) ùNeÏjRôL               • Ø¥fÑ YûL (Knotted)
       ªu §\û]  (tapping) GÓdL úYi¥V
                                                            • ÏßdÏ  -CWhûP- CWhûP Y¯ YûL
       CPeL°p             CqYûL             CûQl×
       ùNnVlTÓ¡\Õ.  (Fig 5)                                    (Cross -  Double - Duplex)
                                                            G°V YûL  (Plain) ùRôeÏm CûQl×
                                                            (Plain tap joint)  (Fig  8) :  CqYûL CûQl×
                                                            ùTÚmTôÛm A¥dL¥ TVuTÓjRlTÓ¡\Õ.
                                                            úUÛm CRû] ®ûWYôL ùNnV Ø¥Ùm.
                                                            CRû] DVlTt\ûYl×  (Soldering) ùNnYÕ
                                                            ªLÜm SmTLUô]RôÏm.

       úUtLj§V ë²Vu YûL CûQl×
       (Western union joint) (Fig 6) : CqYûL CûQl×
       RûXdÏ úUúX ùNpÛm LPj§  (overhead
       lines)L°u ¿[jûR ¿h¥lTRtLôLÜm
       úTôÕUô] A[Ü CÝ®ûNûV RôeÏm
       Nd§dÏ Ht\T¥Ùm ùNnVlTÓ¡\Õ.



                                                            H¬Vp YûL CûQl×  (Aerial tap joint)
                                                            (Fig  9) :  úTôÕUô] A[Ü SLÚm RuûU
                                                            CÚdÏmT¥Ùm               CûQl©u              ÁÕ
                                                            DVlTt\ûYl×  (soldering) ùNnVôUÛm
       Øû] áoûUVôdLlThP CûQl×
                                                            CûQl× RVô¬dLlTÓ¡\Õ. CkR YûL
       (Scarfed joint ) (Fig 7) :  ùT¬V A[Üs[Ytû\
                                                            CûQl× Ïû\kR ªuú]ôhP A[Üs[
       Jtû\ ùT¬V LPj§«p ϱlTôL SpX
                                                            ªuÑtßLÞdÏ UhÓúU Ht\Õ. CÕ G°V
       62              TYo : GXdh¬μVu (NSQF - Revised 2022) R.T. Ex.No. 1.2.20 - 22
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