Wiring a SP test switch

[Lister1987]

Just want to check my sanity;

I've got an emergeny light to add to my setup board (Test facility and light fitting itself)

I've a 2G MK Grid system - 1 SP 2-way swtich module (aka normal light switch) and a SP fishkey module (to siwtch the supply to the fitting and allow it to run on battery alone as is intended for them - I understand that 2P Fishkey switches switch both N & L and are similar in reverse appearance as a SFCU (Supply & Load marked)

My understanding (as i cant find pictorial instructions for love nor money) Is that the test switch is installed between the perm live tail (in this case the the COM terminal of the neighbouring SP 1-way swtich) and the EM fitting itself.

What i hadn't realised is that EM keyswitches come in SP and DP varieties and should probably go for a DP version instead.

2 Way module has 4 terminals (COM, 1, 2, SP - Only COM, 1 and 2 have screws)
Fishkey swtich has 4 terminals (COM, 1, 2, SP - Only COM, 1 and 2 have screws)

Current setup:
(Ceiling rose terminals numbered from L-R ( L (1,2) Loop (3,4,5) N (6,7) )

perm live from CU to ceiling rose (Loop terminal 3)
neutral from CU to ceiling rose (Netural terminal 1),

P/L CR (Loop terminal 2) to COM of Fishkey

Strapper from Fishkey COM to to 2-way Light switch com
Neutral (2-way temrinal marked 1) back to CR Neutral terminal 2) (Switched live) (I'm aware I have this in the wrong terminal- SL would go to terminal 1 in the rose

Power would leave the rose from terminals 5 and 7 (only unused terminals at the rose (due to Rose being end-of-line) and go on to EM light itself

Have I got this right?

Ceiling Rose

2way switch & EM test rear

2way switch & EM front

 

[davesparks]

It's hard to see what you have done but it looks to me that the way it is wired at the moment will result in a loud bang, it appears you have connected the switch so that it will short circuit live to neutral.

It looks to me like you are trying to run before you can walk by adding emergency lighting in to this.
I recommend you concentrate on getting the basics right first by getting the wiring neat, tidy and connected correctly for a standard 3 plate circuit before moving on to 2 way switching, emergency test switches etc.

 

[Lucien Nunes]

Neutral (2-way temrinal marked 1) back to CR Neutral terminal 2) (Switched live)

Neutral? It's a switched line. It might be a blue cable core but if it connects to the line it's a line (and that's line, not live, these days.)

 

[westward10]

This is essentially what you need to do, a three core and cpc is required from the switch unit.

 

[Lister1987]

Thanks for the replies gents

The existing stuff (prior to mucking with EM addition) tests out fine, done cont and IR tests, it's probably my explanation and dodgy pictures who h don't help.

When I get 5 mins I'll draw put my wiring setup for clarity.

The wiring diagram will help so ta for that.