Title: Safety Regulations for Third Parties  Document ID  Version 9.2  IMS-PTT-S6.5-WIN-0001  Page 12/17  The contracted company must secure the working area it is responsible for. JRC-Petten can require fencing- 3.11.6 off the working area.  Excavation work is only permitted with a work permit (see paragraph 3.2: Work Permits). A work permit will  3.11.7 be granted by SES after consultation with the PSM.  Detours, road works, road damages and ground work must be indicated in an adequate way and –if  3.11.8 necessary– fenced. Work on electrical installations may only be carried out by competent and skilled persons (at least qualified  3.12.1 electricians).  All electrical engineering work must be carried-out according to the Dutch standards  NEN1010 [2]and  3.12.2 NEN3140  [3] Before the work on an electrical installation starts, the "Installation Responsible" or the "Work Execution  3.12.3 Responsible" must be contacted.  When the planned activities require that an electrical installation needs to be (partially) switched-off, the  3.12.4 switch must –if possible– be blocked by a personal lock, and a tag (e.g. with the text below)must be affixed  to notify others, for example:  Before an electrical installation can be connected to the grid the "Installation Responsible" or the "Work  3.12.5 Execution Responsible" must be contacted.  Mechanical Engineering Work  3.13 Before the work on a mechanical installation starts, the responsible person of INFRASTRUCTURE must be  3.13.1 contacted.  When the planned activities require that a mechanical installation needs to be switched-off, the switch or  3.13.2 valve must –if possible– be blocked by a personal lock, and a tag (e.g. with the text below)must be affixed  to notify others, for example:  NOT TO BE USED. WORK IN PROGRESS  CONTACT PERSON: ……………………….  NOT TO BE USED. WORK IN PROGRESS  CONTACT PERSON: ……………………….  Electrical Engineering Work  3.12