d&b T-Series - Manual (Page 17)

3.4. Secondary safety
WARNING!
The secondary safety suspension must be independent of the
primary suspension points and capable of carrying the total
system weight.
- Attach the additional safety device in a way that the array is
caught by the safety device without any significant drop and
swing in the event that the primary suspension fails.
Secondary safety at the Flying frame
The Flying frame is equipped with two safety points [1.2] fitted with two
1 t shackles to accept a secondary safety device such as a 2-leg safety
wire or safety chains.
Note: The safety devices shown in the pictures below are not
part of the delivery.
Assembly
Ensure the two 1 t shackles are properly fitted to the safety points of the
Flying frame.
2-leg safety wire
Safety chains
When using chains as secondary safety device ensure the chains are
not twisted and the hooks are in the right direction as shown in the
picture below.
T-Series Rigging manual (1.1 EN) Page 17 of 44