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New, clean handling process introduced to improve cable quality

Abstract

The clean room system introduced by Canada Wire and Cable Limited in its Toronto plant for its cable manufacturing operation is described. While clean room technology is common in the food processing industry, optical and aerospace manufacturing processes, this is the first time it has been applied to wire and cable extrusion in North America. The purpose of the clean compound handling system is to prevent particle contamination in the shielding and cable insulation materials, as part of an effort to prevent premature underground electric cable failures. Two rooms are dedicated to handling different types of insulation compound, two are dedicated to receiving semi-conducting shielding material, and the fifth room functions as an air lock for the two insulation rooms. The atmosphere is highly regulated with programmable logic control. The air supply filters capture 99.97% of all particles 0.3 microns or larger. The system also maintains air temperature, relative humidity and static pressure. The life variability of cross-linked polyethylene primary distribution cable is dependant on five factors: material purity, extra clean compound handling, cable design, manufacturing process, and installation and operation practices. The clean room system is expected to result in cable that is more resistant to water treeing failures.  More>>
Authors:
Publication Date:
May 01, 1990
Product Type:
Journal Article
Reference Number:
CANM-92-003221; EDB-92-107663
Resource Relation:
Journal Name: Electricity Today; (Canada); Journal Volume: 2:4
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; ELECTRIC CABLES; MANUFACTURING; QUALITY CONTROL; CLEAN ROOMS; CONTROLLED ATMOSPHERES; UNDERGROUND POWER TRANSMISSION; CONTAMINATION; ELECTRICAL INSULATION; POWER DISTRIBUTION; ATMOSPHERES; CABLES; CONDUCTOR DEVICES; CONTROL; ELECTRICAL EQUIPMENT; EQUIPMENT; POWER TRANSMISSION; 240301* - Power Transmission Lines & Cables- Power Cables- (1990-)
OSTI ID:
5174668
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0843-7343; CODEN: ELTDE
Submitting Site:
CANM
Size:
Pages: 48-51
Announcement Date:
Aug 01, 1992

Citation Formats

Hunt, C G. New, clean handling process introduced to improve cable quality. Canada: N. p., 1990. Web.
Hunt, C G. New, clean handling process introduced to improve cable quality. Canada.
Hunt, C G. 1990. "New, clean handling process introduced to improve cable quality." Canada.
@misc{etde_5174668,
title = {New, clean handling process introduced to improve cable quality}
author = {Hunt, C G}
abstractNote = {The clean room system introduced by Canada Wire and Cable Limited in its Toronto plant for its cable manufacturing operation is described. While clean room technology is common in the food processing industry, optical and aerospace manufacturing processes, this is the first time it has been applied to wire and cable extrusion in North America. The purpose of the clean compound handling system is to prevent particle contamination in the shielding and cable insulation materials, as part of an effort to prevent premature underground electric cable failures. Two rooms are dedicated to handling different types of insulation compound, two are dedicated to receiving semi-conducting shielding material, and the fifth room functions as an air lock for the two insulation rooms. The atmosphere is highly regulated with programmable logic control. The air supply filters capture 99.97% of all particles 0.3 microns or larger. The system also maintains air temperature, relative humidity and static pressure. The life variability of cross-linked polyethylene primary distribution cable is dependant on five factors: material purity, extra clean compound handling, cable design, manufacturing process, and installation and operation practices. The clean room system is expected to result in cable that is more resistant to water treeing failures. 2 figs.}
journal = []
volume = {2:4}
journal type = {AC}
place = {Canada}
year = {1990}
month = {May}
}