How is a lifting appliance's steel chain tested after electric-weld splicing?

Question

What test load and duration are required for a steel chain installed on a lifting appliance after it has been spliced by electric welding?

Answer choices

1. 1.5 times the calculated tension for 15 minutes.
2. Twice the calculated tension for 5 minutes.
3. 1.25 times the calculated tension for 10 minutes.
4. Three times the calculated tension for 15 minutes.

Explanation

Clause 196 of the Russian federal industrial safety rules for hazardous facilities using lifting appliances, approved by Rostekhnadzor Order No. 461 of 26 November 2020, specifies a test after electric-weld splicing of this chain.

The test load is 1.25 times the calculated tension, applied for 10 minutes. This answer concerns the specific lifting-appliance chain described in the question.