ELECTRICAL SAFETY for GAS ENGINEERS 238.7 ACV Do a GOOD JOB Take care of YOURSELF STAND OUT from the competition 2018 ISSUE 1 sterling4gas.co.uk 01536 400802
QUESTIONS GAS ENGINEERS SHOULD ASK... 1. How does Socket & See help the Gas Engineer with electrical safety? Q 2. What is Gas Safe Register TB118? 3. What does Gas Safe Register TB118 mean to you? 4. Is a boiler an electrical appliance? 5. What is your responsibility as an employer/engineer? 6. Why should a gas engineer do an earth loop impedance test? 7. Is simply removing a fuse an adequate method of safe isolation? 8. What is a safe to touch test?
...& ANSWERS Socket & See has developed the DLM PRO, this 3-in-1 tool has been specifically designed for YOU, the gas engineer! It combines a socket tester, an earth loop tester and selected multimeter functions enabling all the tests required for installation, service or fault finding of an appliance. A Yes! It s an electrical appliance that burns gas. This Technical Bulletin provides guidance to Gas Safe registered businesses/engineers on the safety precautions to take when working on appliances and the safe electrical isolation of gas appliances. TB118 offers guidance of best practice and information on electrical shock, safe isolation, legislation, test equipment and power supply earthing for heating engineers. The Health and Safety at Work Act 1974 applies to everyone including employers, employees and the self-employed. As an employer you have a duty of care to your employees and should ensure that they have the correct equipment and are competent when it comes to conducting essential electrical checks and safe isolation. As an employee it is your duty to co-operate with your employer and follow correct procedure. Failure of any individual to play their part could result is serious injury or even death. In the event of an electrical fault to earth, the earth loop ensures the protective device operates so the boiler enclosure doesn t become live. No! Removal of a fuse can be used to isolate a boiler but once it is removed the appliance MUST be proved dead. Even with the fuse removed a boiler could be live due to various faults (e.g. the fuse is on the neutral rather than the live). The fused spur MUST also be locked off so only the engineer working on it can refit the fuse and power on the boiler. This is the first test that a gas engineer should carry out. A non-contact voltage detector should be used to check the appliance and any pipe work for dangerous voltages.
BEST PRACTICE EQUIPMENT FOR YOUR TOOLBOX IVOLT NON-CONTACT VOLTAGE DETECTOR SOCKET TESTER 238.7 ACV DLM PRO EARTH LOOP IMPEDANCE TESTER MULTIMETER Danger Equipment locked out Do not operate Do not operate Remarks Date Signed by LOCKOUT KIT SAFE ISOLATION LOCKOUT KIT VIP PRO KIT 2 POLE VOLTAGE INDICATOR PROVING UNIT 2
WHAT DO I NEED TO BE ELECTRICALLY SAFE? Allows an engineer to perform the safe to touch test as mentioned in TB118. It s best practice for an engineer to check the surface of any appliance and pipe work before they touch it. Remember to prove it s operation before and after use. This handy extra feature / tool enables clear visual and audible indication of socket condition. Allows an engineer to check that the protective earth to a boiler is good enough to operate the protective device in a live to earth fault condition. This ensures safety of the engineer and the customer whilst following TB118 best practice. This is a gas engineer s fault-finding tool. Confirming components are faulty with a multimeter can save time and money when compared with swapping possible faulty components. An engineer must ensure that their multimeter is accurate, the correct rating and fit for purpose. An engineer must ensure they have locks for all the different types of isolating devices they may come across. Plugs, fused spurs and MCB could all need to be locked off by an engineer to prevent accidental re-energising of a boiler. The two pole voltage indictor is the go to tester for proving an appliance is dead. Don t forget to check between, Live Earth, Live Neutral and Neutral Earth, as covered in TB118. Proving the tester before and after use is also a must! This is used to prove a voltage indicator s operation before and after use and is a key component when it comes to safe isolation and safe to touch tests. Always Prove Check Prove!
STARTER KIT FOR ELECTRICAL SAFETY...
ELECTRICAL SAFETY IS ESSENTIAL - START RIGHT WITH STERLING DLM PRO 238.7 ACV COMBINED DMM, LOOP & SOCKET TESTER Simple to use, combining: a Digital Multimeter a Loop Tester and a Socket Tester GOOD, CHECK and FAIL indication Perfect for installation, servicing and repairs Inc. SS130 socket interface adaptor, shrouded test leads, & GS38 compliant prods & clips IVOLT NON-CONTACT VOLTAGE INDICATOR Ideal for safe to touch tests Identifying live conductors Finding a break in a wire Verifying a blown fuse Detecting the presence of AC voltage HARD CASE PROTECTIVE HARD CASE Easy to open double throw latches Load tested soft grip handle Padlock fixing points Shoulder strap fixing point Stackable interlocking system External dimensions - L258 W243 H118 mm Internal dimensions - L235 W180 H106 mm Medium & large available Space Orange shown - also available in Stealth Black
DLM PRO A CLOSER LOOK... Specifically designed for gas and electrical appliance engineers, combining many of the test functions an engineer will need for installation, service or fault-finding of an appliance. 238.7 ACV Simple to use! All-in-one tester for essential electrical tests and fault-finding. Combined digital multimeter, loop tester and socket tester. GOOD, CHECK and FAIL indication making interpreting loop results easy. Fail on loop test Fail on the socket test for no earth Features: AC 0-500V, 40-200Hz, DC 0-500V, Continuity 0-2MΩ, none trip loop, belling out function, auto null. Colour coded terminals, leads and switch positions for safe and easy operation. Magnetic strap allows hands-free boiler testing. Fully protected against accidental mains connection in continuity / null functions. Dual colour LCD screen and audible tone make fail results clear. Robust, ergonomic design. Less testers to carry and calibrate! Accessories as standard: TECC10 Fabric carry case, SS130 Socket interface adaptor, plus 4mm Colour coded, shrouded test leads and GS38 compliant prods and clips INSTALLATIONS SERVICING REPAIRS
OTHER BEST PRACTICE EQUIPMENT VIP PRO KIT VIP PRO 2 POLE VOLTAGE TESTER Clear and easy to read voltage indication Voltage ranges: 12-50-110-230-400V AC/DC Separate lamps indicate AC or DC with polarity Double insulated lead 1.4 metres Battery free operation SP200 PROVING UNIT Generates from 50v 690v with a true AC waveform Automatic test function to conserve batteries Intelligent voltage ramp for testing multimeters and voltage indicators Low battery indication * these can be purchased separately PDL234 EARTH LOOP IMPEDANCE TESTER Patented no-trip loop test technology Fully protected against accidental phase to phase connection Built-in SOK32 indicating correct wiring Unique polarity test gives ultimate overall system safety check Includes ITLS400 fused test lead set, and soft carry case LOCKOUT KIT LOCK OFF TAGOUT KIT Everything you'll need to get started with lockout and tagout Enhance safety procedures Lock out most types of fuse holders CB12 can lock breakers with no locking facilities Do not operate Remarks Date Signed by Danger Equipment locked out Do not operate
MAKING YOUR WORKING ENVIRONMENT SAFE This is a guide to Safe Isolation only. It does not cover essential electrical checks such as loop testing or safe to touch tests. This guide is not meant to replace your company s codes of practice. Work on electrical systems and appliances should only be carried out by competent persons. A STEP BY STEP GUIDE TO SAFELY ISOLATING A BOILER Ask the customer s permission to isolate the boiler. Locate and operate the means of isolation (plug top, MCB, fused spur etc.) Fit a mechanical lock and a warning / prohibition tag to the means of safe isolation. Prove the operation of your voltage indicator on a proving unit. Check that the boiler s incoming terminals are dead. Check Live Neutral, Live Earth and Neutral Earth. No voltage should be indicated in any position. Prove the operation of your voltage indicator on a proving unit. The engineer can now be confident that the boiler is safely isolated and locked off against accidental re-energisation.
TRAINING COURSE TAKING BOOKINGS Electrical Testing & Fault Finding for Gas Engineers This course is aimed at Heating and Gas Engineers wishing to expand on their knowledge on all aspects of central heating system controls, boiler controls, electrical safety, safe isolation, fault finding, testing and component exchange. This course will provide the engineer with the basic knowledge of electrical installation skills, an understanding of electrical circuits and a logical approach to fault finding on boilers and equipment using the latest instrument from the DLMPro. COURSE CONTENT: MODULE 1: Basic electrics knowledge and understanding MODULE 2: How systems work MODULE 3: Health, safety and safe isolation MODULE 4: Fault finding, control & component exchange The course will consist of a considerable amount of theory and hands-on practical training throughout the two days. Courses run from 9am to 4pm over both days with lunch provided. ALL candidates will be required to hold current CCN1 & CEN1/CENWAT competencies prior to booking. For enquies please contact: 01536 400802 niki@sterling4gas.co.uk
The Home of the DLM PRO Produced by Socket & See Subject to change, including technical modifications, without notice Please get in touch with training enquiries & for product viewing & availability sterling4gas.co.uk Sterling4Gas Sterling4Gas 01536 400 802 niki@sterling4gas.co.uk MKT089v1 Sterling Assessment Services, 17 Alexander Court, Earlstrees Industrial Estate, Corby, NN17 4SW