Monthly Archives: December 2015

Welcome to 2016 from Jamestech

welcome to 2016

Welcome to 2016 from Jamestech

All of us at James Technologies look forward to assisting you towards a very safe and prosperous 2016.

Please call us at anytime, to assist with all your Projects’ Electrical Labour Hire and Engineering needs.

Main Phone number –
1300 732 881 (free call Australia)

Darren Caulfield – Brisbane
mobile phone 0418 878 767
+61-7-5547 3600 (direct – office)

Ken Cryer – Townsville
mobile phone 0448 956 766
+61-7-4725 7706 (direct – office)

Lightning and Voltage Rise … are you ok?


This is the archetypical, (meaning “Image from the unconscious” I thought I’d throw that in to make it seem more technical), lightning bolt, one that arcs out of the sky and smites the ground with a great, often flickering flash of light.

Lightning is the sudden release of built-up charge stored in an electric field, though exactly what triggers it remains a mystery.
Do you see sights like this on your site?

Have you controlled the risks?

Mining and Quarrying Safety and Health Regulation 2001 –
31 Voltage rise

The operator or site senior executive must ensure voltage rise in an electrical installation at the mine caused by lightning strike, static electricity, voltage surges and other transient voltages is limited to a level necessary to achieve an acceptable level of risk, having regard to the ways stated in a guideline for limiting voltage rise.

Depending on where your site is, and how many lightning days per year you have, will vary your approach to how you handle lightning and the accopaning voltage rises.

Want to know more?
James technologies can assist.

Ken Cryer
Engineering Manager
mobile phone 0448 956 766
+61-7-4725 7706 (direct – office)

Keeping your sites P&IDs up to date

P&ID’s (Piping And Instrumentation Diagrams)  are schematical diagrams showing piping, equipment and instrumentation connections within process units.

When the instruments are used for the measurement and control of industrial manufacturing, conversion, or treating processes, the term Process Instrumentation is applied and when the measuring and controlling instruments are combined so that measurements provide impulses for remote automatic action, the result is called a Control System.

In most situations where the desire is to totally control and measure the properties of a material within a process, several instruments may be required. This makes it necessary to have different instruments along the pipe, measuring numerous properties of the medium such as Temperature, Pressure, Level, Flow, Humidity, Density, Viscosity, to give a full understanding of the operation and understanding of the process.

Over the life of a plant many situations arise where the site drawings are not kept up to date and important current information is not recorded. Usually it is the P&ID associated with the loop being changed that does not get immediately updated.


Current up to date P&ID’s asssit everyone from the Engineers and Technicians to the Process Plant Operators both within the Control Room and in the field. The P&ID is regularly used as a platform for the Control Room HMI. Where the 2 differ kaos and confusion are the outcome.

The small amount of time spent updating the drawings after changes to piping and subsequemt instrumentation saves many hours of head sctratching and frustration during a process loop failure … which generally happens on nightshift during a major process push.

Jamestech Instrument Technicians are always available to assit in either a simple review, or a full site audit of you P&ID’s to ensure what is in the field is in the drawings.

Jamestech also have the Engineering support and Technical Draftspersons to assist in completing a full drawing review and update.

Should you require any further information, please do not hesitate to contact any of the Jamestech staff on +61-7-55473600.

Darren Caulfield