Learn Cable Installer Lingo For Free online, free
Learn Cable Installer Lingo For Free Online Courses

Microsoft Learn is where everyone comes to learn. Discover new skills, find certifications, and advance your career in minutes. With interactive, hands-on learning paths. Microsoft Employees can find specialized learning resources by signing in. B) The cable is fed from the cable reel directly into the conduit at floor level. The cable is fed from the bottom of the reel so that its curvature is continuous with no reversed bends. Figure F-2 Cable Feed into Conduit at Floor Level c) From cable reel to cable tray, the cable is fed from the top of the reel to main-tain required curvature. Microsoft Learn is where everyone comes to learn. Discover new skills, find certifications, and advance your career in minutes. With interactive, hands-on learning paths. Microsoft Employees can find specialized learning resources by signing in.

The CYMCAP software is dedicated to the calculation of ampacity and temperature rise calculations for power cable installations. The accuracy of the software provides increased confidence when upgrading power cable installations and designing new ones; maximizing the benefits from the considerable capital investment associated with them. It also helps increase system reliability and supports the proper utilization of the installed equipment.

Features

The CYMCAP software is dedicated to performing ampacity and temperature rise calculations for power cable installations. Determining the maximum current power cables can sustain without deterioration of any of their electrical properties is important for the design of electrical installations.
It addresses steady-state and transient thermal cable rating as per the analytical techniques described by Neher-McGrath and the International Standards IEC 287© and IEC 853©.
This software was developed jointly by Ontario Hydro (Hydro One), McMaster University and CYME International, under the auspices of the Canadian Electricity Association.
The validation of the results obtained with the CYMCAP software provides increased confidence when upgrading existing power cable installations and designing new ones, thus maximizing the benefits from the considerable capital investment associated with them.

Analytical Capabilities

Iterative techniques based on Neher-McGrath and IEC-60287© methods
Full compliance with North American practice and compliance with IEC standards IEC 60287©, IEC 60228©, , IEC 60853©, etc.
Detailed graphical representation of virtually any type of power cable. This facility can be used to modify existing cables data and enrich the cable library with new ones. This includes single-core, three-core, belted, pipe-type, submarine, sheathed, and armored cables
Different cable installation conditions such as directly buried, thermal backfill, underground ducts or duct banks
Pipe-type cables directly buried or in a thermal backfill
Independent libraries and databases for cables, duct-banks, load curves, heat sources and installations
Modeling of cables in air on riser poles, groups of cables in air, moisture migration, nearby heat sources and heat sinks, etc.
Different cable types within one installation
Non-isothermal earth surface modeling
Cyclic loading patterns as per IEC-60853©
Multiple cables per phase with accurate modeling of the sheath mutual inductances which greatly influence circulating current losses and thus de-rates the ampacity of cables
All types of sheath bonding arrangements for flat and triangular formations are supported with explicit modeling of minor section lengths, unequal cable spacing, etc

Transient Analysis

The program supports a Transient Thermal Analysis Option which includes the following:

Ampacity given time and temperature
Temperature analysis given time and ampacity
Time to reach a given temperature, given the ampacity
Ampacity and temperature analysis as a function of time
User-defined load profiles per circuit
Multiple cables per installation
Circuits can be loaded simultaneously or one at a time

CYMCAP Additional Modules

Installations

The CYMCAP Additional Modules offer extended capabilities to the CYMCAP software, allowing modeling more installations, particularly non-standard installations. This includes the modeling of installations with multiple ductbanks and backfills each with different thermal resistivity; the calculation of the ampacity and temperature of cables in unventilated tunnels; the rating of cables in both filled and unfilled troughs; and the rating of cables in one or more non-magnetic casings.

Analyses

The CYMCAP Additional Modules allow performing several analyses of interest for cables installations like evaluating the magnetic flux density at any point on or above the ground of an underground cable installation, determining the positive and zero sequence impedances and admittances for all the cables present in an installation, performing short-circuit cable ratings, determining the optimal placement of several circuits within a ductbank given specified constraints and calculating the ampacity of two circuits crossing each other.

The Multiple Duct Banks and Backfills add-on module (MDB) is designed to determine the steady-state ampacity of cables installed in several neighboring duct banks and/or backfills with different thermal resistivity. The module presents a unique solution combining standard and non-standard calculation methods. The module computes the values of T4 (the external thermal resistance to the cable) using the finite element method and then the ampacity (or operating temperature) of the cable installation is obtained using the IEC standardized solution method.
The following capabilities are highlighted:

Modeling unlimited number of rectangular areas with different thermal resistivity
Modeling up to three duct banks in a single installation
Modeling one heat source or heat sink in the installation
Computation of the steady-state ampacity or temperature
Transient analysis, cyclic loading and emergency ratings are supported
Computation of the thermal rating of cables installed in filled troughs

Cables in Tunnels

The optional Cables in Tunnels module allows the user to determine steady-state temperature and ampacity, cyclic loading, emergency rating and transient analysis for cables installed in unventilated tunnels. Note that only equally loaded cables having the same type and loading are considered. This add-on module supports a large variety of cable arrangements for single core (flat formations or trefoils) and three-core cables. Major features are:

Modeling of a large variety of installation methods: laying on the floor; hanging from a wall; in ladder-type racks; or in cable trays
Cables and groups of cables can be single-core or three-core. Single-core cables can be arranged in flat formations (vertically or horizontally) or in trefoil
Computation of the steady-state ampacity or temperature. Cyclic loading using daily, weekly and yearly load factors. Computation of emergency ratings

Cables in Troughs

The thermal rating of cables installed in unfilled or in filled troughs is determined using the CYMCAP/UNF and the CYMCAP/MDB modules respectively.
In these modules, a trough (or a trench) is defined to be a long shallow rectangular-shaped excavation, where the walls, bottom and cover are made of concrete. The cables can be installed on the floor, hanging from supports on the walls or racks. The trough can be filled with a material with good thermal properties or it can be left unfilled (air filled). The heat transfer mechanism is different for filled and unfilled troughs and therefore they are treated independently.

Unfilled Troughs

Initially, the only option to rate unfilled trough installations was to use the IEC standard. In this approach the cables ratings are calculated as for cables in free air, but the temperature inside the trough is computed according to th

Learn Cable Installer Lingo For Free Online