Book at a Glance

PaRT II - Switchgear assemblies and captive (Emergency) Power Generation

Chapter 14. Testing of a metal-enclosed switchgear assemblies

Philosophy of quality systems
Use of environment friendly substances (RoHS)
Recommended tests
LV impulse test
Procedure for type tests
Procedure for routine tests
Procedure for field tests
introduction to mechanical impact test, internal arc test and EMC/EMI (electromagnetic compatibility and emission) tests
an introduction to earthquake engineering and testing procedure
a passing reference to tsunami

Philosophy of quality systems
This has been covered in Section 11.1. 4.1.1 Quality assurance To fulfil quality requirements, the material inputs going into the making of assemblies, such as MS sheets (for their surface finish, thickness and bending properties), hardware (for their correct sizes, quality of threads and  tensile strength etc.), busbars and cables (for their area of cross-section, conductivity and quality of insulation in case of cables), insulators and supports (for their sizes and quality of SMC, DMC or any other material used (see ‘environment friendly substances’ below)), and all other switchgear components such as breakers, contactors, switches, fuses, CTs, VTs and meters etc. (for their ratings, duty class, class of accuracy (where applicable) and specifications etc.) must be properly checked and recorded, according to the manufacturers’ internal quality checks and formats. This should be carried out before they are used in assemblies to eliminate any inconsistency in material or component.
Similar stage inspections are necessary during the course of manufacturing to assure quality at every stage and eliminate any mistakes in construction, assembly or workmanship during the course of manufacturing. Thus, can be ensured a product of desired specification and quality.

Use of environment friendly substances

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