some info required

[Pothead]

i have two questions but im going to put both in this one thread,

question 1

with a hvk 100a fan, it has two wire's (no earth) which way would i wire one? or does it not matter? both wires on the fan are black and i can't tell any difference, i came across this diagram, but im still stuck :o also what size fuse would i need? its 27w, and use's 0.17A so would a 1 amp fuse be ok?

http://www.u-grow.com/main/images/rvk100-200.jpg



question 2

extension leads and timers, which way should i use them? (while being safe etc)

a) plug the extension cable in to a timer and everything will come on at the same time

b) plug the extension straight into the power and then have a timer for each thing plugged into the extension

c) some other way

the extension lead itself has surge protection built in, has 6 sockets and is working on 240v (uk)


thanks
peace

[Pothead]

please someone?

thanks
peace

[LendogPDX]

it has two wire's (no earth) which way would i wire one?
or does it not matter?
If it is in a metal case you can use a tap screw to put a ground on there

both wires on the fan are black and i can't tell any difference,
Is the copper wire inside the same in both wires? Look for a silver wire in one of the wires, copper is the best conductor so the straight copper one is your hot wire, the wire with copper/silver is your neutral. If you can't tell, the cord may have ridges on one of the wires, the one with ridges is your neutral.

i came across this diagram, but im still stuck also what size fuse would i need? its 27w, and use's 0.17A so would a 1 amp fuse be ok? Use a 2A inline fuse inline to the hot side of the wire.

question 2

extension leads and timers, which way should i use them? (while being safe etc)

a) plug the extension cable in to a timer and everything will come on at the same time

b) plug the extension straight into the power and then have a timer for each thing plugged into the extension

c) some other way

the extension lead itself has surge protection built in, has 6 sockets and is working on 240v (uk)

If you use a plug strip just know the max amperage of the plug strip and don't overload it. Also, as far as timers go, I'd use separate times, as you may want a fan and lights on a separate cycle. When it comes to plug strips, don't be cheap, and don't overload, this is your weakest link. Depending on your overall load, I can suggest other ways to make it better, such as subpanels and separate circuits, but if you are small, there is no need to overcomplicate things.

[Pothead]

thanks Lendog

that's sorted question 2, but im still a little stuck on question 1

the case is plastic, so i don't need to earth it,

there's to black wires that look identical, but on having yet another look i did spot one small difference, the writing on each of the cables, 1/2 of it is unreadable (looks like computer text) and the other 1/2 i don't understand, on one wire it has a 1 then two lines and then a 1 again :confused:

as there's only two wires if i was to connect them the wrong way would that be dangerous or cause damage? or would it work but in reverse? (then i could swap the wires around)

im planning on running a two core cable from the fan to a plug with a 3 amp fuse

thanks
peace

[Zandor]

Well AC voltage does not really have a positive and negative only DC power does.

LendogPDX is correct but if both wires are the same color inside then it could be a forward and reverse lead too. Depending on how you wire the leads one configuration can provide forward and the other may spin the motor in the reverse direction.

Is there a start compactor missing maybe?

As for ground yes that requires a case ground.

It also could be a 240v motor too so I hope you are sure it's 120v.

Peace

Z

[Pothead]

Well AC voltage does not really have a positive and negative only DC power does.

LendogPDX is correct but if both wires are the same color inside then it could be a forward and reverse lead too. Depending on how you wire the leads one configuration can provide forward and the other may spin the motor in the reverse direction.

Is there a start compactor missing maybe?

As for ground yes that requires a case ground.

It also could be a 240v motor too so I hope you are sure it's 120v.

Peace

Z

thanks for the reply zandor but you have lost me....


"Is there a start compactor missing maybe?" - you have lost me, whats that?:confused:

"As for ground yes that requires a case ground." why? its plastic and the guy at the store said it didn't need to be earthed

"It also could be a 240v motor too so I hope you are sure it's 120v." as far as i know i didn't say it was 120V:confused: its a 240V

peace

[LendogPDX]

thanks for the reply zandor but you have lost me....


"Is there a start compactor missing maybe?" - you have lost me, whats that?:confused:

"As for ground yes that requires a case ground." why? its plastic and the guy at the store said it didn't need to be earthed

"It also could be a 240v motor too so I hope you are sure it's 120v." as far as i know i didn't say it was 120V:confused: its a 240V

peace
Z meant start capacitor, which are on some fans, if there is one on there, then you use the hot wire in line with that. If not, no worries.

If it is a plastic case, then you are fine.

In England you use 240VAC L-N as in the US we use 120VAC L-N..... But yes, if there is no specified line wire, or any inline capacitors, you can just plug the thing in as-is.

[Pothead]

haha i think where just about there!:cool: thanks Lendog:D

this model doesn't have a capacitor, its only the bigger models that do, there's no specified line wire that i can see

you say "you can just plug the thing in as-is" so if it is wired up the wrong way it will just run in reverse and then i can just swap the two wires around to get it going the right way? is that right?

thanks for your help it is appreciated

pothead
peace

[DrumBum]

Hey man, I can't really help with your fan question, but one thing I can add is that as well as checking the load of the power strip, check the load limit on the timer as well... A lot of them do state on the packaging not to use with high power lamps etc. I have had many blow on me and I had to buy a contactor to combat the problem. It basically has 2 plugs, one for the timer and one to draw power, then a power strip is attached to that. Power is activated by the timer plug which I'm assuming has a smaller drain to avoid blowing the timer. The cable is considerably thinner than the power cable anyway. Better safe than sorry, especially when it comes to electrics.

[Pothead]

thanks drumbum, ive got one of those relays, for one of my area's but im using a normal surge protected strip for the other, and ive checked the timers (all 7 of them:eek:)

"Better safe than sorry, especially when it comes to electrics."

too true! and that's why i started this thread

peace

[DrumBum]

thanks drumbum, ive got one of those relays, for one of my area's but im using a normal surge protected strip for the other, and ive checked the timers (all 7 of them:eek:)

No worries man, sounds like we're on similar lines. I also run just the surge strip for CFLs over mothers, and I never have any problems with them power or timer wise. Hope you get that fan sorted...