S 1.11 Plans detailing the location of supply lines

Initiation responsibility: Head of Site/Bldg Technical Service

Implementation responsibility: Site/Bldg Technical Service

Precise location plans must be kept for all supplies (power, water, gas, telephone, warning system, pneumatic dispatch, etc.) in the building and on its associated premises, and all facts regarding supply lines are to be included:

• precise routing of the line (plotting on dimensioned floor plans and location plans);

• exact technical data (type and dimensions);

• any existing marking;

• use of the lines, naming the network subscribers connected to them;

• danger spots; and

• protective measures that are in place and to be reviewed.

It must be possible, by consulting these plans, to get a picture of the situation in a simple and quick way. Only then will it be possible to minimise the risk of lines being inadvertently damaged during repair/maintenance work. It will then be possible to locate a defect more quickly and to eliminate it.

It must be ensured that all work on lines is documented promptly and completely. The plans are to be kept separately, and provisions regarding access to them must be laid down as they contain sensitive data.

Additional controls:

• Who is responsible for the plans?

• Are the plans being updated?

• Are the plans stored safely and are they only accessible to authorised parties?

• Which plans are already in place?