S 1.11 Plans detailing the location of supply lines

Initiation responsibility: Building Services Manager

Implementation responsibility: Building Services

Detailed location plans of all supply lines (energy, water, gas, telephone, threat notification, pneumatic tube mail etc.) in the building and on the corresponding property must be kept and must include all facts concerning the lines:

• detailed path of the lines (marked in dimensioned footprint and location plans),
• detailed technical data (type and dimensions),
• any available identification,
• usage of lines and specification of the connected network subscribers,
• hazardous spots, and
• existing protection measures and protection measures to be reviewed.

It must be possible based on plans to quickly and easily obtain an exact picture of the situation. This is the only way to minimise the risk of accidentally damaging lines during work. Correspondingly, a damaged spot can be localised more quickly so that the malfunction can be repaired more quickly.

It must be ensured that all work on the lines is completely documented in due time. Thus, the person responsible for maintenance and updating of the plans of all supply lines must be clearly defined. The plans must be stored at a secure location as they include information requiring protection. They must be stored so that only authorised persons may access them, but they must be quickly available in case of need.

Review questions:

• Are up-to-date location plans of all supply lines available?
• Is it clearly defined who is responsible for maintaining the location plans of the supply lines?
• Is it ensured that only authorised persons can access safety-critical location plans?