Insulation Crepe Papers of the type having the required quality specifications for electrical insulation purpose are made entirely from high grade electrical kraft base papers conforming to IEC-60554-3-5 (1984).These papers are totally free from conductive particles and are used as insulation in Distribution/ Power/ Current/ Potential transformers. We offer these materials in natural colour and in reel form.

A. SPECIFICATION :

PRODUCT STANDARD: IEC 60554–3–3 (1980)

NO.	PROPERTIES	UNITS	SPECIFIED VALUES	TYPICAL OBTAINED TEST VALUES, RBL (GSM)
			UNDER IEC-60554-3-3	60       60       100       100 120     150      200       250
1	Thickness	mm	Crepe papers are not required to conform to the tolerances on thickness and, in most cases, the thickness is governed by other specified properties, and is of less importance than are those properties. Where thickness is a property of importance (as, for example, on crepe papers that have been calendered), the nominal values and tolerances shall be as agreed between the purchaser and manufacturer. In all cases, care shall be taken when handling the paper during the sampling and testing procedures not to stretch the paper.	0.33    0.39    0.48      0.55
2	Hill Count	Counts/ 10 mm	The limits for hill count shall be as agreed between the purchaser and the manufacturer. Appropriate values for a given paper will depend upon the density and substance of the base paper, the amount of stretch and various details of the creping operation, and can vary from less than 8 to more than 20 per 10 mm. In general, the hill count will increase with decreasing paper density or substance, or with increasing elongation at break.	11        16        11       16
3	Extended Tensile Index (MD)	Nm/g  (min)	39	64        66        65        68
4	Elongation/Stretch At Break (MD)	%	The elongation/Stretch at break shall be within 15% of that specified by purchaser	102      157      98        153
5	Moisture Content	max  (%)	8	4.3        4.1      4.4       4.5
6	Ash	max  (%)	1	0.78     0.71     0.50      0.54
7	Conductivity of Aqueous Extract	mS/m	10 max	2.6        2.1       2.9       3.5
8	pH of Aqueous Extract		6 to 8	7.2        7.1       7.0       7.4
9	Break Down Voltage In Air In Oil	kV/mm kV/mm	80% stretched (10 layers)	10         10        11        10  22         23        24        26
10	Oil Absorption	%		51         52        24        26
11	Density	gm/cc		0.38     0.42     0.43     0.45

B. PRODUCT OFFER RANGE:

1. Thickness (Base Paper) : 2 Mil (0.05 mm) TO 5 Mil (0.125 mm)

2. Roll Dimension : 25 mm - 50 mm Pads and upto 1200 mm Rolls

1. Elongation/Stretch :20%TO 200%
2. CREPE TUBES: Highly flexible tubes made from electrical insulating crepe papers are available in following range:

INNER DIA (ID)	WALL THICKNESS	LENGTH
3 mm - 60 mm	1 mm - 10 mm	1000 mm

Tolerance :+0.5 mm for ID, +1 mm for OD and +/-5% for LENGTH.