Resolume Forum

Hi Guys,

I was hoping if someone has personal experience for international production.

I was wondering if safety cables bought in Canada specifically on avshop.ca I guess they are made in China Global truss... are ok to be used in Germany for an exhibition. I haven't seen specific rules but I guess if I use german made cables with certification about load on the cable I will avoid any type of problematic!

Btw I need these cables to take care of the safety hook on my hitachi projectors and on the aluminum shelves on clamps.

What do you think guys?

Regards,
Jo.

If i get it right you talk about steel cables as secound saftey for the rigging?

The common rules in Germany are :

(old) : BGV C1
New : DGUV Vorschrift 17

The part you need wasnt changed and you may only find the old version.

The importand parts:
Every part you mount over persons have to be saved twice. ( your normal mount + your safety)
Ropes are not allowed / You have to use steel cables or chains (first & secound mount)
Maximum way in case you first mount fail is 0.2m
The parts you use must be suited for the load they have to carry in the worst case. ( Also think about dynamic force when your projector "fall" till the safety hold it.)
The safety Cable you use need to be checked every year.

If you want to be totaly save. Insurance Stuff and so on. Then let the tec guy in place mount it for you


Further Informations are written down in about 10 different DIN VDE ( like ISO) and are very complex.
DIN 56927
DIN EN 1492
BGI 810 -3
BGI 622


Germany =/

I don't know how things are in different countries but in the US, most venues, especially the ones under IATSE jurisdiction, will not allow any made-in-china rigging/truss to leave the deck because of the lack of quality control.

I know a lot of equipment such as Global Truss is fabricated in China so I would not even consider buying it unless it's going to be used as truss totems.

As far as safety cables, my recommendation would be to make them using only parts rated for overhead use and making sure that every crimped connection has been swaged properly in terms of number of compressions vs wire rope diameter and checked with a go/no-go gauge. Take a look at this document for some interesting guidelines.

And as He2neg mentioned, you want to make sure every safety cable is rated for the shock load assuming a safety factor of 5 to 1.

Also, any rigging system is only as good as its weakest link so make sure every part of your safety cables are rated for overhead rigging. One of the things I see in a lot of places is safety cables with dog clips!

Thank you guys, in the meantime I've been in touch with some old friends with experience and did some research. To avoid any country regulations I've planned to buy certified cables made in Germany (they are slightly more expensive) and yes beside the shelves (5kg each) and projector (8kg) bolted with M6 hex bolt, I will individually cable them. One for the projector and one for the shelf. Went through the exhibition regulation and the only DIN are regarding the rigging point for the trussing. I'm allowed a max of 50kg per rigging point. Therefore I've distributed the weight equally along the truss.

Thank you again,

I'm attaching some shots of my shelf and safety hook on the hitachi.

The cables are certified for 10kgs and the clamps are for 300Lbs.

Best,

Happy we could help you.

Importand for the Cables is not the "Made in Germany".
It´s the XX kg follow the rules DGUV 17 / old BGV C1 . Then you are safe.

Thank you, in fact I decided to buy double of the weight for each item and I've rigged my rack and my back up PC tower as well. All the clamps and swivel have imprinted the 300lbs load, and some of them are certified TüV Nord.

Not sure the second attachment was there.

He2neg thank you again,

I've done some research and it looks like the DGUV 17 is a requirements for all Messe in Germany but here they are talking mainly for ceiling wiring which is the in house lighting company. I even read that the sweety cable has to be double of the weight, this info was actually on an old PDF from Messe in Frankfurt. The lighting guy was showing a classical projector frame that he could rent for a crazy amount of money of course but I didn't find any specific regulations on which mount I can use on the trussing but only regulations from ceiling to suspended items I.e. Trussing light instead. Therefore if I use my aluminum shelves and bolted projectors individually secured with a certified cable I don't see issue. I'm attaching some screenshot. Thank you I advance for your help, and please feel free to inquire if you need help in regards of regulations in Canada, specifically Ontario and Italy.

Best,