S 1.2 Regulations governing access to distributors

As far as possible, distributors (e.g. for power supply, data and telephone networks) should be accommodated in technical infrastructure rooms (see Chapter 4.3.4). The measures specified for such rooms are to be met.

Access to the distributing frames of all supply facilities (power, water, gas, telephone, warning system, pneumatic dispatch, etc.) within the building must be possible and regulated.

Possible means that

• distributing frames will, during painting work, not be pasted over with paint or wallpaper in such a way that they could be opened only with tools or could not be located;

• distributors must not be blocked by furniture, equipment, pallets, etc.;

• keys are available for locked distributors, and that the locks are in working order.

Regulated means that it has been laid down who may open which distributor. Distributors should be locked and may be opened only by the persons responsible for the respective supply facility. Access can be regulated by various locking devices and appropriate key management schemes (on this point, cf. S 2.14 Key Management).

If melting fuses are built into distributors of the supply mains, appropriate spare fuses should be held in store (in the distributor). The documentation of the distributors should be in accordance with the provisions of S 2.19 Neutral documentation in the distributors).

All devices installed in the distributor must bear precise and intelligible legends.

Additional controls:

• Are there regulations governing access to distributors?