Answer / arup

ZONE 0 --Areas in which an explosive gases atmosphere (An
explosive gas air mixture) is present continuously or
present for long time.
ZONE 1---An area in which explosives gas atmosphere is
likely to occur in normal operation.
ZONE 2--An area in which an explosive gas atmosphere is not
likely to occur in normal operation and if it does occur,
it will exist for a short period only.

What is the equipment used to control the generator output?

4 Answers  

---

house wiring - series wiring or parallel wiring

4 Answers  

---

What different between kw and kva. why maser AC in kva.

3 Answers  

---

What will be the current after disconecting the bus bar or cable before discharging ?

2 Answers   Sodexo,

---

what is diffrence between neutral and earth wire

23 Answers   Bhel, Esab, MTNL,

---

what is the responsibility of C license holder in industry?

0 Answers  

---

how to select earthing conductor size of amy motor/panel etc.

1 Answers   Sony, VBB,

---

In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.

0 Answers   PPIL,

---

what is active power & reactive power?

0 Answers   Avtech, Jindal,

---

What is the basic rule for block diagram reduction technique?

0 Answers  

---

For backup batteries connection,which method is best? series or parallel ?  

3 Answers   ABC,

---

Is there any specialised book to refer about fault level calculation both in MV and LV side??

0 Answers  

---