ENGINEERING STANDARD SPECIFICATION
VALE #
TITLE
ELECTRICAL
DISTRIBUTION
MINE SHAFT & UNDERGROUND DRIFT CABLE SUPPORT
BRACKETS
1.0
Ontario
PAGE
SPEC-53015
Last Revision
2019/04/04
1/3
REV.
4
PURPOSE
This specification describes the minimum requirements for the fabrication and installation of cable
support brackets for vertical cable installations and for cables that are to be installed on messenger in
underground access drifts and boreholes.
The following drawings form part of this specification:
99-999-H-004217 Mine Shaft Cable Support Bracket
99-999-H-004218 Underground Mounting Bracket For Cables
99-999-H-004350 Mine Shaft Cable Clamp Support Bracket
99-999-E-004146 Borehole Power Cable Support Bracket
99-999-H-004549 Mine Shaft Power Cable Cleat Support Bracket
99-999-H-004550 Borehole Power Cable Cleat Support Bracket
2.0
TECHNICAL INFORMATION
2.1
INSTALLATION REQUIREMENTS
The type of bracket required is to be indicated on the engineered drawings; including, the
mounting height and the maximum spacing between brackets.
3.0
REFERENCE DOCUMENTATION
The following documents are related to this specification and shall be used to their latest revision:
CSA-M421-16
OESC-2015
Use of Electricity in Mines, sections:
· 4.3.1.3
Vertical versus horizontal
· 4.3.1.4
Vertical Cables
· 6.3.1.2
Support for Horizontal Cables
· 6.3.1.3
Support for Vertical Cables
· 6.3.1.4
Support for Mine-Shaft Cables
· 6.3.1.5
Support for Borehole Cables
· 6.3.1.6
Mine-Shaft Cable Design
· 6.3.1.7
Mine-Shaft Cable Installation Procedure
· 6.3.1.8
Mine-Shaft Cable Pulling Tension Safety Factors
· 6.3.1.9
Galvanized steel round or flat wire armour as tensile pulling
members
· 6.3.1.10 Use of built-in or similar dedicated tensile pulling members
· 6.3.1.11 Use of electrical conductors as tensile pulling members
· 6.3.1.12 Use of cables subject to core slippage in vertical pulls
Ontario Electric Safety Code 2015, 26th Edition, sections:
· Rule 12-120
Supporting of Conductors
· Table 21
Supporting of Conductors in Vertical Runs of Raceways
Ontario
ENGINEERING STANDARD SPECIFICATION
VALE #
TITLE
4.0
PAGE
SPEC-53015
ELECTRICAL
DISTRIBUTION
MINE SHAFT & UNDERGROUND DRIFT CABLE SUPPORT
BRACKETS
Last Revision
2/3
REV.
2019/04/04
4
REVISION AND TRANSITION NOTES
Revision notes describe: what was changed, and if applicable, why it was changed, and the plan to
implement the change, including whether changes are retroactive.
Note: The revision notes are a summary of the changes and may not necessarily be a complete list.
A risk code is entered for each revision and if applicable, the revision notes will describe how risk
was addressed for the revision.
Risk
Code
Risk Category
A
This revision is a minor change and/or introduces no risk.
B
Risk has been addressed for this revision by the reviewer and approver. Low risk or no new hazards identified.
C
For this revision, a PHR or other risk management tool has been used to address risk and minimize hazards. This
risk assessment has been documented and is available through Central Engineering.
Rev
1
2
3
4
Revision Notes
Standard created based on existing Vale standard
drawings 5319-01.03.511 & 5319-02.01.511
Drawing 99-999-E-004146 added to the specification and
Section 1 modified. Drawing re-numbered - number was
formerly 99-071-E-004146
Drawing 99-999-H-004350 added to the specification and
Section 1 modified by combining standards 531901.02.420 and 5319-01.02.410 onto one drawing.
Standard format updated. Drawings 99-999-H-004549 &
99-999-H-004550 added to Standard.
Risk
Code
Approved
by
Reviewed
by
Issue Date
YYYY/MM/DD
A
T. Chadwick
I.
Goldsborough
2012/04/30
A
T. Chadwick
I.
Goldsborough
2015/05/20
A
T. Chadwick
T. Chadwick
2016/01/29
B
T. Chadwick
P. Langlois
2019/04/04
ENGINEERING STANDARD SPECIFICATION
VALE #
TITLE
ELECTRICAL
DISTRIBUTION
MINE SHAFT & UNDERGROUND DRIFT CABLE SUPPORT
BRACKETS
5.0
None
Ontario
APPENDICES
PAGE
SPEC-53015
Last Revision
2019/04/04
3/3
REV.
4