| Material Group | Comparative Tracking Index (CTI) – in Volts |
|---|---|
| Insulating Material group – I | 600V and above |
| Insulating Material group – II | 400V to 599V |
| Insulating Material group – IIIa | 175V to 399V |
| Insulating Material group – IIIb | 100V to 174V |
Switchboard ASSEMBLY Base Frame Provides Base support to Assembly structure and evenly pass load onto base concrete foundation.
Circuit Breaker with Short Time withstand Icw capacity are Calassified as Category B (eg. ACB), and without Icw are Category A (eg. MCCB, MCB).
LOTO – Lockout Tagout is the Physical restraint of Device as Hazardous Energy source, While doing Servicing/Maintenance.
Protection degree provided by Assembly against mechnical impact, according to IEC 62262, is defined by IK code.
Fire Classification basis Material Involved in Fire and Essential Extinguiser Effect required for Fire Suppression.
Motor contribution is the Current feed back by Motor, due to rotating magnetic fied in rotor, into System during short circuit condition.
Arc Flash is light and heat produced as a result of Arc Fault, due to low impedance path, which causes electrical explosion or discharge.
Metals used in Switchboard Assemblies are CRCA, Al, Cu, etc have specific Weight basis its Density of Atoms for given volume.
Arc Blast is the supersonic shockwave produced when the uncontrolled Arc vaporizes the metal conductors and expanding Plasma.