fired components

[0605]

Пожалуйста, помогите перевести.
fired components
Выражение встречается в следующем контексте:
Морская нефтедобывающая платформа.
Start-up Procedures.
The procedures for start-up should include the sequence of events required to bring the various components up to their intended operating conditions in a safe and orderly manner. As a minimum, the following items should be covered in start-up procedures^
1. To the extent possible, both safety and control systems and relief and vent systems should be in service before hydrocarbons are brought into the facility.
...
...
Lighting of fired components should be done only after the unit is purged (to avoid backfire) nd in strict adherence to the manufacturers instructions. All safetydevices should be functional, and the fluid level should cover the fire tube.

Заранее спасибо