unhappy electrician

Status
Not open for further replies.
H

happyelec

Member
times running out and I need help;
a photovoltacic power source for a dwelling shall be permitted to be connected to the load side of the service disconect of the other source, provided that the sum of the ampere ratings of oversurrent devices suppling power to a busbar or conductor does not exceed what percentage of the busbar ratin A) 130% B)120% C) 110% D) 100%


TVSS grounding conductors shal A) be isolated from the TVSS B) not be run in metal enclosures unless bonded to both ends of such encloser C) not be larger than 12 AWG copper D) not be longer than 20m

Not looking for a quick answer need help finding and understanding. Thanks
 
Dennis Alwon

Dennis Alwon

Moderator
Staff member
Location
Chapel Hill, NC
Occupation
Retired Electrical Contractor
happyelec said:
times running out and I need help;
a photovoltacic power source for a dwelling shall be permitted to be connected to the load side of the service disconect of the other source, provided that the sum of the ampere ratings of oversurrent devices suppling power to a busbar or conductor does not exceed what percentage of the busbar ratin A) 130% B)120% C) 110% D) 100%

TVSS grounding conductors shal A) be isolated from the TVSS B) not be run in metal enclosures unless bonded to both ends of such encloser C) not be larger than 12 AWG copper D) not be longer than 20m

Not looking for a quick answer need help finding and understanding. Thanks
Click to expand...
On my way to work so haven't got time to check part 2 but look at article 690.64 (B)(2) exception for your first question
 
L

lowryder88h

Senior Member
Location
Massachusetts
Tvss

Tvss

happyelec said:
times running out and I need help;
a photovoltacic power source for a dwelling shall be permitted to be connected to the load side of the service disconect of the other source, provided that the sum of the ampere ratings of oversurrent devices suppling power to a busbar or conductor does not exceed what percentage of the busbar ratin A) 130% B)120% C) 110% D) 100%


TVSS grounding conductors shal A) be isolated from the TVSS B) not be run in metal enclosures unless bonded to both ends of such encloser C) not be larger than 12 AWG copper D) not be longer than 20m

Not looking for a quick answer need help finding and understanding. Thanks
Click to expand...


Unhappy, Ques. (2) is found in 285.25, your answer is (B):D
 
H

happyelec

Member
exam ?

exam ?

Thanks for your help before but I have two more- where can I find Answer too
a bonding jumper connected between the communications grounding electrode and power grounding electrocde systems at the building or structure served where seperate eelectrodes are used shall be not smaller than
A) 12 AWG CU
B) 10 AWG CO
C) 8 AWG CU
D)6 AWG

Ive come up with 6 but not absolutely sure
Thanks Again!
 
B

Bea

Senior Member
happyelec said:
Thanks for your help before but I have two more- where can I find Answer too
a bonding jumper connected between the communications grounding electrode and power grounding electrocde systems at the building or structure served where seperate eelectrodes are used shall be not smaller than
A) 12 AWG CU
B) 10 AWG CO
C) 8 AWG CU
D)6 AWG

Ive come up with 6 but not absolutely sure
Thanks Again!
Click to expand...


You are correct 800.100(D)
 
Status
Not open for further replies.
Top