Answer / ra

cables for 13.8 kv is consider to be medium voltage (not HV ) and if it is routed in cable duct so there is no issue.the purpose of cable duct is to provided safety to cable route.
in case if the cable buried in ground, executor of building construction should notify the client through technical query to solve the issue by technical way according to specification and standard.
in my opinion builder suppose to keep opening for cable routing

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how was your last weekend.

0 Answers   HCL,

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Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.

0 Answers   HAL,

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why DC motor body is plain cover but AC motor is different like finse?

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if we use contactor & MCCB both in a feeder.in this feeder rating of contactor is higher or lower or same of MCCB rating & why?

1 Answers  

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