Types of Electrical Conduits PDF

Here is the converted markdown format of the document/image: # WHAT ARE THE DIFFERENT TYPES OF CONDUITS? # LEARNING OBJECTIVE: AT THE END OF THIS SESSION, YOU WILL BE ABLE TO: * IDENTIFY PROPER USAGE AND TYPES OF CONDUITS IN ELECTRICAL INSTALLATION. # INTRODUCTION AN ELECTRICAL CONDUIT IS AN EL...

Here is the converted markdown format of the document/image: # WHAT ARE THE DIFFERENT TYPES OF CONDUITS? # LEARNING OBJECTIVE: AT THE END OF THIS SESSION, YOU WILL BE ABLE TO: * IDENTIFY PROPER USAGE AND TYPES OF CONDUITS IN ELECTRICAL INSTALLATION. # INTRODUCTION AN ELECTRICAL CONDUIT IS AN ELECTRICAL PIPING SYSTEM USED FOR PROTECTION AND ROUTING OF ELECTRICAL WIRING. CONDUIT IS GENERALLY INSTALLED BY ELECTRICIANS AT THE SITE OF INSTALLATION OF ELECTRICAL EQUIPMENT. ITS USE, FORM, AND INSTALLATION DETAILS ARE OFTEN SPECIFIED BY WIRING REGULATIONS, SUCH AS THE NEC OR PHILIPPINE ELECTRICAL CODE. THE TERM "CONDUIT" IS COMMONLY USED BY ELECTRICIANS TO DESCRIBE ANY SYSTEM THAT CONTAINS ELECTRICAL CONDUCTORS, BUT THE TERM HAS A MORE RESTRICTIVE DEFINITION WHEN USED IN WIRING REGULATIONS. HERE THE DIFFERENT TYPES OF ELECTRICAL CONDUIT. # METALLIC NON-FLEXIBLE CONDUIT * RIGID STEEL CONDUIT (RSC) * INTERMEDIATE METALLIC CONDUIT (IMC) * ELECTRICAL METALLIC TUBING (EMT) # RIGID STEEL CONDUIT (RSC) A RIGID STEEL CONDUIT SERVES THE SAME PURPOSE AS WITH THE ELECTRICAL METALLIC TUBING. IT IS DESIGNED TO PROTECT THE ELECTRICAL WIRING OF BUILDING FROM ELECTRICAL HAZARD DUE TO FAULTY WIRING. IT IS USUALLY INSTALLED BURIED IN CONCRETE WALL FLOOR AND CEILING, IN MASONRY OR SIMILAR MATERIALS. IT IS ALSO USED FOR EXPOSED AND CONCEALED WORK, AND IT PROVIDES MAXIMUM PROTECTION WHEN THERE IS MECHANICAL DAMAGE. FOR THIS WIRING METHOD TO BE EFFECTIVE, SAFE AND RELIABLE, IT IS A MUST THAT IT SHOULD FOLLOW THE PHILIPPINE ELECTRICAL CODE (PEC) STANDARD AND SPECIFICATIONS. *Image features metallic rigid conduit.* # INTERMEDIATE METALLIC CONDUIT (IMC) INTERMEDIATE METALLIC CONDUIT, OR IMC, IS A THINNER, LIGHTER-WEIGHT VERSION OF RIGID METAL CONDUIT AND IS APPROVED FOR USE IN ALL OF THE SAME APPLICATIONS AS RSC. BECAUSE IMC IS LIGHTER AND EASIER TO WORK WITH THAN RSC, IT IS USED MORE COMMONLY IN NEW CONSTRUCTION. *Image features intermediate metallic conduit (IMC).* # ELECTRICAL METALLIC TUBING (EMT) ELECTRICAL METALLIC TUBING IS A TYPE OF WIRING INSTALLATION WHICH IS DESIGNED TO LESSEN OR ELIMINATE FIRE HAZARD AND ELECTRICAL ACCIDENT. MAY BE USED FOR EXPOSED AND CONCEALED WORK AT THE SAME CONDITION WITH RIGID METAL CONDUIT. EMT IS PROTECTED WITH ENAMEL SHOULD BE USED ON THE FOLLOWING CONDITIONS: * SUBJECTED TO MECHANICAL DURING OR AFTER THE CONSTRUCTION * CINDER FILL * HAZARDOUS LOCATION * EXPOSE TO CORROSIVE FUMES AND VAPOR *Image features electrical metallic tubing (EMT) conduit of varying widths.* # METALLIC FLEXIBLE CONDUIT FLEXIBLE METALLIC TUBING IS A KIND OF WIRING INSTALLATION WHICH IS COMMONLY USED FOR EXTERNAL MOTOR TERMINAL CONNECTION. IT IS BEING MANUFACTURED IN ROLLED IN THE FORM OF COIL. A FLEXIBLE CONDUIT CONSISTS OF FLEXIBLE STEEL TUBE WHICH IS MADE FROM CONVEX TO CONCAVE METAL STRIP IN A SPIRAL WINDING. FLEXIBLE METALLIC CONDUIT IS USED IN A CONNECTION WHERE THE LOAD BEING SUPPLIED NO DEFINITE PLACE WHERE FLEXIBILITY IS DESIRED. SOME COMMON EQUIPMENT ARE THE PORTABLE MOTOR, DRILL PRESS LATHE MACHINE, ETC. *Image features a close-up stack of multiple metallic, flexible conduits.* # NON- METALLIC NON- FLEXIBLE CONDUIT IS NON- METALLIC UNTHREADED SMOOTH- WALLED TUBING. THEY ARE MANUFACTURED TO BE RESISTANT TO MOISTURE AND CHEMICAL ATMOSPHERE, FLAME RETARDANT. THEY ARE RESISTANT TO IMPACT AND CRUSHING AND, THEY DO NOT EASILY GET OUT SHAPE BECAUSE OF HEAT. THESE CONDUITS ARE CLASSIFIED ACCORDING TO THE MATERIALS THEY ARE MADE OF. * POLYVINYL CHLORIDE (PVC) # POLYVINYL CHLORIDE (PVC) PIPE * THE PVC PIPE IS ONE OF THE MOST COMMONLY USED CONDUITS IN ELECTRICAL WIRING INSTALLATION TODAY. ITS PREPARATION FOR INSTALLATION IS MUCH EASIER THAN THE METALLIC RIGID CONDUIT. IN PREPARING A NON- METALLIC RIGID CONDUIT FOR INSTALLATION, AN ELECTRICIAN NEEDS TO DO CUTTING, HEATING AND BENDING. LIKE IN METALLIC RIGID CONDUIT OFFSET BENDS, $90°$ ANGLE BENDS AND OTHER BENDS ARE ALSO MADE ON PVC RIGID CONDUIT. IN MAKING BENDS ON PVC RIGID CONDUIT, THE ELECTRICIAN SHOULD SEE TO IT THAT THE INTERNAL DIAMETER OF THE CONDUIT IS NOT REDUCED AND DAMAGED SO THAT THE CAPACITY OF THE CONDUIT TO ACCOMMODATE MAXIMUM NUMBER OF CONDUCTORS WILL NOT BE LESSEN AND TO FACILITATE EASY PULLING OF CONDUCTORS. *Image features a non-metallic, non-flexible conduit (PVC).* # NON- METALLIC FLEXIBLE CONDUIT FLEXIBLE NONMETALLIC CONDUIT IS USED AS MECHANICAL PROTECTION FOR ELECTRIC CONDUCTORS. IT HAS A SMOOTH INTERIOR AND A WALL OF NON-CONDUCTING FIBROUS MATERIAL. THIS IS COMMONLY USED ELECTRICAL WIRING CONDUIT NOW A DAYS DUE TO ITS ECONOMIC VALUE. *Image features non-metallic flexible conduit (PVC).* # THANK YOU!!!