Cables & Connectors Flashcards
MEN
Multiple Earthed Neutral
CMEN
Common Multiple Earth System
RCD
Residual Current Device
SPD
Surge Protection Device
TVSS
Transient Voltage Surge Suppressor
Induced Voltage
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Insulation Class
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IP Rating (Ingress Protection)
They are used to define levels of sealing effectiveness of electrical enclosures against intrusion from foreign bodies (tools, dirt, etc.) and moisture.
Annealing
In metallurgy and materials science, annealing is a heat treatment that alters the physical and sometimes chemical properties of a material to increase its ductility and reduce its hardness, making it more workable
Ductility
Ductility is the physical property of a material associated with the ability to be hammered thin or stretched into wire without breaking. A ductile substance can be drawn into a wire.
Elastomer
A natural or synthetic polymer having elastic properties, e.g. rubber.
PVC (Insulator)
Polymerizing Vinyl Chloride
PE, XLPE
Polyethylene, Cross-Linked Polyethylene
Silicone
Silicones are used in sealants, adhesives, lubricants, medicine, cooking utensils, and thermal and electrical insulation. Some common forms include silicone oil, silicone grease, silicone rubber, silicone resin, and silicone caulk.
Mineral Powder (Insulator)
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Cellulose Insulation
Cellulose insulation is plant fiber used in wall and roof cavities to insulate draught proof and reduce free noise
Active, Single-Phase (colours)
Red or Brown
Neutral (colours)
Black or Blue
Three-Phase (colours)
L1, L2, L3; Red, White, Blue
SDI Cable
Single Double-Insulated
TPS (‘twin’ or ‘plus earth’) Cable
Thermoplastic Sheathed
TPI Cable
Thermoplastic Insulated
SWA Cable
Steel Wire Armoured (provides mechanical protection, used for underground power)
Mica Tape
Mica is the name given to a group of minerals of related composition and similar physical properties, most notably perfect basal cleavage, which means they can be split readily in one plane into a great number of thin, tough laminates.
MIMS Cable
Mineral Insulation, Metal Sheath
Dielectric
Dielectric, insulating material or a very poor conductor of electric current. When dielectrics are placed in an electric field, practically no current flows in them because, unlike metals, they have no loosely bound, or free, electrons that may drift through the material. Instead, electric polarization occurs.