EXTERNAL PLANT ISSUE II: MAY’97 ______
GENERIC REQUIREMENTS
NO.G/CJM-32/02.MAY97
TELECOMMUNICATION ENGINEERING CENTRE
KHURSHIDLAL BHAWAN, JANPATH
NEW DELHI - 110001
INDIA
GOVERNMENT OF INDIA DEPARTMENT OF TELECOMMUNICATIONS TELECOMMUNICATION ENGINEERING CENTRE NEW DELHI - 110 001
MOLSKIN (WIPING CLOTH ) NO. G/CJM-32/02.MAY 97
(This Generic Requirement is a revised issue of ITD No. S/YC-103 dated3-10-1974, renumbered as G/CJM- 32/01. This Document supersedes the said ITD specification.)
1.0 SCOPE:
This document covers the technical requirements of moleskin (wiping cloth) used in plumbing lead sheathed cable joints.
2.0 GENERAL
2.1 moleskin is a heavy fustian (twilled cotton cloth type fabric with smooth face and twill back.
3.0 TEXTURE AND QUALITY:
3.1 The cloth shall be manufactured from unpolished yarn and should be unstarched to ensure proper impregnation by tallow and to prevent temporary stiffness of cloth which is likely to wear off with use making the cloth unsuitable for use.
3.2 Moleskin shall be produced from one series of warp threads and two series of picks inserted in the proportion of two face picks to one back pick.
3.3 It shall have a smooth and even surface.
3.4 The cloth shall conform to particulars given in table-I
TABLE-1:PARTICULARS OF MOLSKIN
------Count of Yarn Ends pick Weight in Warp Weft Per cm Per cm gms/sq. meters ------25 text/3 42 tex 15 160 Not less than (or 24s/3) (or 14s) 500 gms. Tex = weight in gr. Of 1 mm of yarn ------4.0 WIDTH : The width of the cloth shall be 750 mm.
5.0 FINISH: The nap of the cloth shall be laid flat.
6.0 TESTS : 6.1 A 0.5m sample will not be tested for its suitability for wiping of joints in lead sheath of cables with plumbers metal , after impregnating it with tallow. 6.2 The cloth shall not be easily penetrated by splashes of molten metal.
7.0 SAMPLING One sample of 0.5 m will be tested from every roll of moleskin regarding uniformity of texture and quality amongst different rolls in the bulk supply.
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