3 P's - Principles

Question 1

what is Principles - 3.1 A

to fulfil the requirements of philosophy the following principles have been adopted in formulating the rules.

Answer 1

A

- rules are only concerned to achieving safety for persons

Question 2

what is Principles 3.1 B

Answer 2

B - when work is to be carried out on equipment the primary means of achieving safety is through isolation.

Question 3

what is Principles 3.1 B2

Answer 3

B.2 - where practicable the isolating devices shall be locked.

Question 4

what is Principles 3.1 B3

Answer 4

B.3 -

In the case of HV equipment, this shall be followed by earthing.

Question 5

what is Principles 3.1 B4

Answer 5

B.4 -

Where reasonably practicable the earthing devices shall be locked.

Question 6

what is Principles 3.1 B5

Answer 6

B.5 -

In the case of mechanical equipment this shall be followed by draining venting and purging as appropriate.

Question 7

what is Principles 3.1 C

Answer 7

C - approved specialised procedures shall be required for work where isolations is not reasonably practicable

• or where normal isolation procedures cannot be applied.

Question 8

what is Principles 3.1 D

Answer 8

D - persons shall be formally appointed to carry out defined duties

Question 9

what is Principles 3.1 E

Answer 9

E - application shall ensure that safety is maintained across all internal and external control boundaries and interfaces.

Question 10

what is Principles 3.1 F

Answer 10

F - achievement of safety from the system will involve one or more of the following functions.

• control, making safe/restoration of equipment and work.
• these three functions cover different responsibilities which are treated separately in the rules.
• the rules do not preclude one person performing all three functions.