Electrical knowledge questions set 2 Outline the specific safety practices and procedures that they need to observe when forming and assembling cable enclosure/support systems (including any specific legislation, regulations or codes of practice for the activities, equipment or materials) There are...
Electrical knowledge
questions set 2 latest
K1 Outline the specific safety practices and procedures that they need to observe when forming
and assembling cable enclosure/support systems (including any specific legislation, regulations or
codes of practice for the activities, equipment or materials)
There are a number if electrical specific legislations and British standards that need to be followed
are are related to the installation of forming an assembling closures and support network systems.
The most important ones of these is HASWA 1974 , Electricity at Work 1989 Regs and BS7671.
HASWA states that it is the duty of both employee and employer in taking care of their own safety
and where practicable that of others whether this is colleagues, visitors or bystanders. This means
that all works need to be undertaken safely – circuits should not be incomplete or untested before
energised. It is important that dead testing is undertaken before any form of live testing. Systems
should be safely isolated following safe isolation procedures whilst they are being constructed or
modified.
The Electricity at work 1989 Regulations state that all systems should be designed to ensure that they
reduce or remove the dangers such as harmonising the wires and making sure that components are
fit for purpose – the wire rating for the correct loads that it will be carrying as an example. No
equipment should be installed in a place where there will be a higher rated strength or capacity that
might be exceeded which could potentially cause damage to items or components as well as fire. An
example of this is overloading and damaging a machine. It is important to make sure that all
conductors are correctly terminated and they are earthed sufficiently to prevent shorting out
through the outer casing of the trunking or other metal surfaces and components
BS7671 talks about all the colours of wiring and how to calculate the wiring rating and sizes that you
require. This BS standard states that live wire should always be brown the neutral should be blue and
the earth should be green and yellow or sleeved on the earth insulator on twin and earth. Older
electrical installations (Pre 2004) have different schemes of wiring colours where the red is live and
the black is neutral. Anything that uses the pre-harmonisation wiring should ensure that it is labelled
clearly to ensure that the wiring can be identified to ensure that there are no accidents that occur
due to it being insufficiently labelled up. These changed were brought in to the UK to bring the wiring
in line with Europe which already utilised the new colour system. Under no circumstances should the
A+ Page 1
, lOMoAR cPSD| 37664106
Electrical knowledge questions set 2 latest
colour scheme be mixed within a single installation – It is either the old system or the new one but
must be fully compliant with with one or other but never both.
There are a number of other risk that are in the work areas that are around and you need to be
aware of when working with any form of metal work. The tools that are used such as hacksaws and
files used to shape the metal work. Both tooling can cause injury if not treated with respect. There
are also sharp edges that have the ability to cause cuts and scratches in the skin. There are a lot of
particulates that is produced when working with either metal formations or PVC conduit. It is
important that you cut this in a well ventilated areas to ensure that you are at least risk of inhalation
of the dust. You should where feasible wear a dust mask to ensure that this is avoided best as
possible as these particles can damage the throat or lungs for that matter.
K2 Identify the hazards associated with forming and assembling cable enclosure/support systems,
and with the tools and equipment used (such as using bending and forming equipment, handling
long lengths of pipe and trunking, using solvents and adhesives), and how they can be minimised
Tooling that is used can be dangerous if not used safely as they are more than capable of cutting
human flesh. These tools should be treated with respect to reduce the risk of any form of injury to
the skin or other surfaces. It is important that care is taken when carrying out using these tools.
When they are not in use it is important to make sure that you leave your tool in the correct places
and back where they belong without leaving them lying around on the work benches.
A+ Page 2
, lOMoAR cPSD| 37664106
Electrical knowledge questions set 2 latest
There are by products that are produced when cutting certain PVC and Metal components these
include dust particulates that can be a health hazard if they are inhaled as they can be damaging to
the lungs and throats. Dust should only be produced in a well ventilated areas where there is
extraction or where there is the option to be able to wear a respirator or mask to prevent this from
happening. It is important to make sure that the dust particulates that have been produced are
cleaned up thoroughly. It is important to make sure that the edges on any form of forming to
enclosure is free of sharp edges as this can cause severance of the cable or damage to the cable
sheathing that can lead to short circuits or damage or even electrocution.
Adhesives that are used when carrying out forming enclosures and support systems for specific tasks.
Epoxies and glues are some of the adhesives that are dangerous if they are inhaled particularly if
they are solvent based. They can also pose a chemical or thermal burns risk if they are splashed on
the skin or even if accidently ingested and can damage the areas that are sensitive such as the eyes.
Care should be taken to ensure that this does not happen when you are working with these
chemicals. Particular care should be taken to ensure that when you are working with adhesives
overhead as splashing is more likely to occur.
K3 Explain the importance of wearing appropriate protective clothing and equipment (PPE), and
keeping the work area safe and tidy
PPE is an important because of the processes and chemicals that are used in specific maintenance
techniques, and these can be hazardous. Without protection there is a vastly increased level of risk
to the operator, and these are unacceptably high. PPE serves to minimise this risk by protecting the
operator from a given hazard or a series of hazards. An example of this is eye protection such as
safety glasses they are required in several areas in the workshop including machines such as a pillar
drill or a lathe. There is a greater risk of swarf from these processes, and these can injure they eyes if
it should get into the eyes. This protection is essential to ensure that your eyes are protected.
Likewise, a pair of steel to capped trainers / boots are also essential to protect against falls and
damage to the toes and foot injuries
A tidy workshop area is vital not just form safety but also efficiency. If the work area is cluttered, then
the risk of the common accidents and injuries in the workplaces which are slips trips and falls is
greater and there may be hazard that include sharp offcuts of metal or chemicals that are concealed
by other mess that in the area. In a clean workplace this removes these hazards and they are easily
identified and dealt with. A messy workplace can make finding a required tool more difficult and
would required cleaning if space was required. Putting back where it belongs means that whoever
next needs it will be able to find it and this means that it makes it more efficient and a less stressful
area if you are searching for tools.
A+ Page 3
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller AsolutionTestbank. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.39. You're not tied to anything after your purchase.
