Crepe Paper - ENC

1. Raw material
Insulation crease paper is one of the most important solid insulation of the transformer's oil-paper insulation system, it influence to the quality and life-span
of transformer directly. The research results of these years certify that the kind
and quality of raw material is a key factor of the product quality. So the material
we required is 100% unbleached sulphate conifer wood pulp and its DP value
should be greater than 1000.

2. Application
The product applies to insulation crease paper, which is used to oil immersion transformer.

3. Specification
Crease insulation paper is continuous paper. Its width is 500±5mm or 625±5mm.
The diameter is 550-650mm. Basis weight is max. 130g/m². MD elongation
is max. 200% or according to subscribers' requirements.

4. Explanation
(a) XBZ expressed: X-1/10 basis weight, B-electrical insulating crepe paper, Z-MD
specific elongation

(b) Type JP-50, 100 crease insulation paper's apparent weight, thickness, density,
specific elongation, etc will come to term according to the subscriber's requirement
when ordering
(c) C type crease insulation paper technical indication for according to the subscriber's
requirements as follows:
Nitrogen content is 1~2%. After aging on condition that the insulation paper is kept
by sealing for 168 hours at 150°C. Tear strength is not less than 60% or
tensile strength is not less than 75%
Type JP-50, 100 crease insulation paper can be dyed one-sided or both-sided according to the subscriber's requirements

5. Appearance
Crease insulation paper should wrinkles uniformly, has no folds, breakages, and has
no any impurity, pinhole, water trace and clump. The pruning edges should be
orderly and thickness should be uniform.