WHAT IS B & C CLASS SURGE PROTECTION AND WHAT IS DIFFERENCE
BETWEEN B & c CLASS SP

Answer Posted / dhiraj banka

Class b SPD is for lightning surges & class c SPD is for switching surges.Class B+C protects both from lightning & switching surges.

Is This Answer Correct ?    8 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what will happen if earth of 33 kv cable (earthed system) is not connected to earthing pit?

1538


How to megger test 11 kV cable and the acceptance IR value

2441


Explain difference between stand by earth fault and residual earth fault protection?

1528


I AM A ELECTRICAL PANEL BOARD DESIGN ENGINEER.IF I GO ANY INTERVIEW ,TECHNICALLY WHAT ARE QUESTIONS I WILL FACE FROM INTERVIEWER?

12300


What is the settings of distance protection relay in 400 kv line

1184






What is the function of retrip in busbar?

1080


If Polarization index of motor 8.75 at 500volts of medium voltage 4.16 KV motor what this mean winding good or bad pl answer if any reffrence book give me the link

1722


Explain what is clipper and clamper circuits?

686


How could a garment factory benefit from renewable energy

2347


what is interfacing in computer studies?

1247


IF alternator SCR value will be high means what happen in alternator efficency at operating power factor of 0.8

3399


How many energy meters can be connected on a 15VA Voltage transformer. please send a calculation sheet.

1505


what is kvarh? Please define it With calculation General motors ?

697


How to calculate the efficiency of Turbo Generator(Alternator) in general....?

2244


what is the preventive maintence for ht panels and busbars and vcb abd acb's.

1855